| Message ID | 20221007180107.216067-5-Jason@zx2c4.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | treewide cleanup of random integer usage | expand |
> diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c > index 7c37e09c92da..18c4f0e3e906 100644 > --- a/arch/parisc/kernel/process.c > +++ b/arch/parisc/kernel/process.c > @@ -288,7 +288,7 @@ __get_wchan(struct task_struct *p) > > static inline unsigned long brk_rnd(void) > { > - return (get_random_int() & BRK_RND_MASK) << PAGE_SHIFT; > + return (get_random_u32() & BRK_RND_MASK) << PAGE_SHIFT; > } Can't this be prandom_u32_max(BRK_RND_MASK + 1) << PAGE_SHIFT ? More similar code with other masks follows below. > diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c > b/drivers/gpu/drm/i915/i915_gem_gtt.c index 329ff75b80b9..7bd1861ddbdf > 100644 > --- a/drivers/gpu/drm/i915/i915_gem_gtt.c > +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c > @@ -137,12 +137,12 @@ static u64 random_offset(u64 start, u64 end, u64 len, > u64 align) range = round_down(end - len, align) - round_up(start, align); > if (range) { > if (sizeof(unsigned long) == sizeof(u64)) { > - addr = get_random_long(); > + addr = get_random_u64(); > } else { > - addr = get_random_int(); > + addr = get_random_u32(); > if (range > U32_MAX) { > addr <<= 32; > - addr |= get_random_int(); > + addr |= get_random_u32(); > } > } > div64_u64_rem(addr, range, &addr); How about if (sizeof(unsigned long) == sizeof(u64) || range > U32_MAX) addr = get_random_u64(); else addr = get_random_u32(); > diff --git a/drivers/infiniband/hw/cxgb4/cm.c > b/drivers/infiniband/hw/cxgb4/cm.c index 14392c942f49..499a425a3379 100644 > --- a/drivers/infiniband/hw/cxgb4/cm.c > +++ b/drivers/infiniband/hw/cxgb4/cm.c > @@ -734,7 +734,7 @@ static int send_connect(struct c4iw_ep *ep) > &ep->com.remote_addr; > int ret; > enum chip_type adapter_type = ep->com.dev->rdev.lldi.adapter_type; > - u32 isn = (prandom_u32() & ~7UL) - 1; > + u32 isn = (get_random_u32() & ~7UL) - 1; > struct net_device *netdev; > u64 params; > > @@ -2469,7 +2469,7 @@ static int accept_cr(struct c4iw_ep *ep, struct > sk_buff *skb, } > > if (!is_t4(adapter_type)) { > - u32 isn = (prandom_u32() & ~7UL) - 1; > + u32 isn = (get_random_u32() & ~7UL) - 1; u32 isn = get_random_u32() | 0x7; Same code comes later again. > diff --git a/drivers/mtd/nand/raw/nandsim.c b/drivers/mtd/nand/raw/nandsim.c > index 50bcf745e816..4bdaf4aa7007 100644 > --- a/drivers/mtd/nand/raw/nandsim.c > +++ b/drivers/mtd/nand/raw/nandsim.c > @@ -1402,7 +1402,7 @@ static int ns_do_read_error(struct nandsim *ns, int > num) > > static void ns_do_bit_flips(struct nandsim *ns, int num) > { > - if (bitflips && prandom_u32() < (1 << 22)) { > + if (bitflips && get_random_u32() < (1 << 22)) { Doing "get_random_u16() < (1 << 6)" should have the same probability with only 2 bytes of random, no? > diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c > b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c index > ac452a0111a9..b71ce6c5b512 100644 > --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c > +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c > @@ -1063,7 +1063,7 @@ static void chtls_pass_accept_rpl(struct sk_buff *skb, > opt2 |= WND_SCALE_EN_V(WSCALE_OK(tp)); > rpl5->opt0 = cpu_to_be64(opt0); > rpl5->opt2 = cpu_to_be32(opt2); > - rpl5->iss = cpu_to_be32((prandom_u32() & ~7UL) - 1); > + rpl5->iss = cpu_to_be32((get_random_u32() & ~7UL) - 1); > set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id); > t4_set_arp_err_handler(skb, sk, chtls_accept_rpl_arp_failure); > cxgb4_l2t_send(csk->egress_dev, skb, csk->l2t_entry); > diff --git a/drivers/net/ethernet/rocker/rocker_main.c > b/drivers/net/ethernet/rocker/rocker_main.c index > fc83ec23bd1d..8c3bbafabb07 100644 > --- a/drivers/net/ethernet/rocker/rocker_main.c > +++ b/drivers/net/ethernet/rocker/rocker_main.c > @@ -139,9 +139,9 @@ static int rocker_reg_test(const struct rocker *rocker) > return -EIO; > } > > - rnd = prandom_u32(); > + rnd = get_random_u32(); > rnd <<= 31; > - rnd |= prandom_u32(); > + rnd |= get_random_u32(); > rocker_write64(rocker, TEST_REG64, rnd); > test_reg = rocker_read64(rocker, TEST_REG64); > if (test_reg != rnd * 2) { > diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c > b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c index > fabfbb0b40b0..374e1cc07a63 100644 > --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c > +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c > @@ -177,7 +177,7 @@ static int brcmf_pno_set_random(struct brcmf_if *ifp, > struct brcmf_pno_info *pi) memcpy(pfn_mac.mac, mac_addr, ETH_ALEN); > for (i = 0; i < ETH_ALEN; i++) { > pfn_mac.mac[i] &= mac_mask[i]; > - pfn_mac.mac[i] |= get_random_int() & ~(mac_mask[i]); > + pfn_mac.mac[i] |= get_random_u32() & ~(mac_mask[i]); > diff --git a/lib/reed_solomon/test_rslib.c b/lib/reed_solomon/test_rslib.c > index 4d241bdc88aa..848e7eb5da92 100644 > --- a/lib/reed_solomon/test_rslib.c > +++ b/lib/reed_solomon/test_rslib.c > @@ -164,7 +164,7 @@ static int get_rcw_we(struct rs_control *rs, struct > wspace *ws, > > /* Load c with random data and encode */ > for (i = 0; i < dlen; i++) > - c[i] = prandom_u32() & nn; > + c[i] = get_random_u32() & nn; > @@ -178,7 +178,7 @@ static int get_rcw_we(struct rs_control *rs, struct > wspace *ws, for (i = 0; i < errs; i++) { > do { > /* Error value must be nonzero */ > - errval = prandom_u32() & nn; > + errval = get_random_u32() & nn; > } while (errval == 0); > @@ -206,7 +206,7 @@ static int get_rcw_we(struct rs_control *rs, struct > wspace *ws, /* Erasure with corrupted symbol */ > do { > /* Error value must be nonzero */ > - errval = prandom_u32() & nn; > + errval = get_random_u32() & nn; > } while (errval == 0); > > diff --git a/lib/test_fprobe.c b/lib/test_fprobe.c > index ed70637a2ffa..e0381b3ec410 100644 > --- a/lib/test_fprobe.c > +++ b/lib/test_fprobe.c > @@ -145,7 +145,7 @@ static unsigned long get_ftrace_location(void *func) > static int fprobe_test_init(struct kunit *test) > { > do { > - rand1 = prandom_u32(); > + rand1 = get_random_u32(); > } while (rand1 <= div_factor); > diff --git a/lib/test_kprobes.c b/lib/test_kprobes.c > index a5edc2ebc947..eeb1d728d974 100644 > --- a/lib/test_kprobes.c > +++ b/lib/test_kprobes.c > @@ -341,7 +341,7 @@ static int kprobes_test_init(struct kunit *test) > stacktrace_driver = kprobe_stacktrace_driver; > > do { > - rand1 = prandom_u32(); > + rand1 = get_random_u32(); > } while (rand1 <= div_factor); > return 0; > } > diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c > index 5a1dd4736b56..b358a74ed7ed 100644 > --- a/lib/test_rhashtable.c > +++ b/lib/test_rhashtable.c > @@ -291,7 +291,7 @@ static int __init test_rhltable(unsigned int entries) > if (WARN_ON(err)) > goto out_free; > > - k = prandom_u32(); > + k = get_random_u32(); > ret = 0; > for (i = 0; i < entries; i++) { > rhl_test_objects[i].value.id = k; > @@ -369,12 +369,12 @@ static int __init test_rhltable(unsigned int entries) > pr_info("test %d random rhlist add/delete operations\n", entries); > for (j = 0; j < entries; j++) { > u32 i = prandom_u32_max(entries); > - u32 prand = prandom_u32(); > + u32 prand = get_random_u32(); > > cond_resched(); > > if (prand == 0) > - prand = prandom_u32(); > + prand = get_random_u32(); > > if (prand & 1) { > prand >>= 1; > diff --git a/net/ipv4/tcp_cdg.c b/net/ipv4/tcp_cdg.c > index ddc7ba0554bd..efcd145f06db 100644 > --- a/net/ipv4/tcp_cdg.c > +++ b/net/ipv4/tcp_cdg.c > @@ -243,7 +243,7 @@ static bool tcp_cdg_backoff(struct sock *sk, u32 grad) > struct cdg *ca = inet_csk_ca(sk); > struct tcp_sock *tp = tcp_sk(sk); > > - if (prandom_u32() <= nexp_u32(grad * backoff_factor)) > + if (get_random_u32() <= nexp_u32(grad * backoff_factor)) > return false; > > if (use_ineff) { > diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c > index ceb85c67ce39..18481eb76a0a 100644 > --- a/net/ipv6/ip6_flowlabel.c > +++ b/net/ipv6/ip6_flowlabel.c > @@ -220,7 +220,7 @@ static struct ip6_flowlabel *fl_intern(struct net *net, > spin_lock_bh(&ip6_fl_lock); > if (label == 0) { > for (;;) { > - fl->label = htonl(prandom_u32())&IPV6_FLOWLABEL_MASK; > + fl->label = htonl(get_random_u32())&IPV6_FLOWLABEL_MASK; > if (fl->label) { > lfl = __fl_lookup(net, fl- >label); > if (!lfl) > diff --git a/net/netfilter/ipvs/ip_vs_conn.c > b/net/netfilter/ipvs/ip_vs_conn.c index fb67f1ca2495..8c04bb57dd6f 100644 > --- a/net/netfilter/ipvs/ip_vs_conn.c > +++ b/net/netfilter/ipvs/ip_vs_conn.c > @@ -1308,7 +1308,7 @@ void ip_vs_random_dropentry(struct netns_ipvs *ipvs) > * Randomly scan 1/32 of the whole table every second > */ > for (idx = 0; idx < (ip_vs_conn_tab_size>>5); idx++) { > - unsigned int hash = prandom_u32() & ip_vs_conn_tab_mask; > + unsigned int hash = get_random_u32() & ip_vs_conn_tab_mask; > > hlist_for_each_entry_rcu(cp, &ip_vs_conn_tab[hash], c_list) { > if (cp->ipvs != ipvs) > diff --git a/net/rds/bind.c b/net/rds/bind.c > index 5b5fb4ca8d3e..052776ddcc34 100644 > --- a/net/rds/bind.c > +++ b/net/rds/bind.c > @@ -104,7 +104,7 @@ static int rds_add_bound(struct rds_sock *rs, const > struct in6_addr *addr, return -EINVAL; > last = rover; > } else { > - rover = max_t(u16, prandom_u32(), 2); > + rover = max_t(u16, get_random_u32(), 2); > last = rover - 1; > } > diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c > b/net/sunrpc/auth_gss/gss_krb5_wrap.c index 5f96e75f9eec..48337687848c > 100644 > --- a/net/sunrpc/auth_gss/gss_krb5_wrap.c > +++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c > @@ -130,8 +130,8 @@ gss_krb5_make_confounder(char *p, u32 conflen) > > /* initialize to random value */ > if (i == 0) { > - i = prandom_u32(); > - i = (i << 32) | prandom_u32(); > + i = get_random_u32(); > + i = (i << 32) | get_random_u32(); > }
On Fri, Oct 07, 2022 at 12:01:05PM -0600, Jason A. Donenfeld wrote: > The prandom_u32() function has been a deprecated inline wrapper around > get_random_u32() for several releases now, and compiles down to the > exact same code. Replace the deprecated wrapper with a direct call to > the real function. The same also applies to get_random_int(), which is > just a wrapper around get_random_u32(). > > Reviewed-by: Kees Cook <keescook@chromium.org> > Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> # for sch_cake > Acked-by: Chuck Lever <chuck.lever@oracle.com> # for nfsd > Reviewed-by: Jan Kara <jack@suse.cz> # for ext4 > Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> # for thunderbolt > Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> For the XFS parts, Acked-by: Darrick J. Wong <djwong@kernel.org> --D > --- > Documentation/networking/filter.rst | 2 +- > arch/parisc/kernel/process.c | 2 +- > arch/parisc/kernel/sys_parisc.c | 4 ++-- > arch/s390/mm/mmap.c | 2 +- > arch/x86/kernel/cpu/amd.c | 2 +- > drivers/gpu/drm/i915/i915_gem_gtt.c | 6 +++--- > drivers/gpu/drm/i915/selftests/i915_selftest.c | 2 +- > drivers/gpu/drm/selftests/test-drm_buddy.c | 2 +- > drivers/gpu/drm/selftests/test-drm_mm.c | 2 +- > drivers/infiniband/hw/cxgb4/cm.c | 4 ++-- > drivers/infiniband/hw/hfi1/tid_rdma.c | 2 +- > drivers/infiniband/hw/mlx4/mad.c | 2 +- > drivers/infiniband/ulp/ipoib/ipoib_cm.c | 2 +- > drivers/md/raid5-cache.c | 2 +- > .../media/test-drivers/vivid/vivid-touch-cap.c | 4 ++-- > drivers/misc/habanalabs/gaudi2/gaudi2.c | 2 +- > drivers/mtd/nand/raw/nandsim.c | 2 +- > drivers/net/bonding/bond_main.c | 2 +- > drivers/net/ethernet/broadcom/cnic.c | 2 +- > .../chelsio/inline_crypto/chtls/chtls_cm.c | 2 +- > drivers/net/ethernet/rocker/rocker_main.c | 6 +++--- > .../wireless/broadcom/brcm80211/brcmfmac/pno.c | 2 +- > .../net/wireless/marvell/mwifiex/cfg80211.c | 4 ++-- > .../net/wireless/microchip/wilc1000/cfg80211.c | 2 +- > .../net/wireless/quantenna/qtnfmac/cfg80211.c | 2 +- > drivers/net/wireless/ti/wlcore/main.c | 2 +- > drivers/nvme/common/auth.c | 2 +- > drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | 4 ++-- > drivers/target/iscsi/cxgbit/cxgbit_cm.c | 2 +- > drivers/thunderbolt/xdomain.c | 2 +- > drivers/video/fbdev/uvesafb.c | 2 +- > fs/exfat/inode.c | 2 +- > fs/ext4/ialloc.c | 2 +- > fs/ext4/ioctl.c | 4 ++-- > fs/ext4/mmp.c | 2 +- > fs/f2fs/namei.c | 2 +- > fs/fat/inode.c | 2 +- > fs/nfsd/nfs4state.c | 4 ++-- > fs/ntfs3/fslog.c | 6 +++--- > fs/ubifs/journal.c | 2 +- > fs/xfs/libxfs/xfs_ialloc.c | 2 +- > fs/xfs/xfs_icache.c | 2 +- > fs/xfs/xfs_log.c | 2 +- > include/net/netfilter/nf_queue.h | 2 +- > include/net/red.h | 2 +- > include/net/sock.h | 2 +- > kernel/bpf/bloom_filter.c | 2 +- > kernel/bpf/core.c | 2 +- > kernel/bpf/hashtab.c | 2 +- > kernel/bpf/verifier.c | 2 +- > kernel/kcsan/selftest.c | 2 +- > lib/random32.c | 2 +- > lib/reed_solomon/test_rslib.c | 6 +++--- > lib/test_fprobe.c | 2 +- > lib/test_kprobes.c | 2 +- > lib/test_min_heap.c | 6 +++--- > lib/test_rhashtable.c | 6 +++--- > mm/shmem.c | 2 +- > mm/slab.c | 2 +- > net/802/garp.c | 2 +- > net/802/mrp.c | 2 +- > net/core/pktgen.c | 4 ++-- > net/ipv4/route.c | 2 +- > net/ipv4/tcp_cdg.c | 2 +- > net/ipv4/udp.c | 2 +- > net/ipv6/ip6_flowlabel.c | 2 +- > net/ipv6/output_core.c | 2 +- > net/netfilter/ipvs/ip_vs_conn.c | 2 +- > net/netfilter/xt_statistic.c | 2 +- > net/openvswitch/actions.c | 2 +- > net/rds/bind.c | 2 +- > net/sched/sch_cake.c | 2 +- > net/sched/sch_netem.c | 18 +++++++++--------- > net/sunrpc/auth_gss/gss_krb5_wrap.c | 4 ++-- > net/sunrpc/xprt.c | 2 +- > net/unix/af_unix.c | 2 +- > 76 files changed, 105 insertions(+), 105 deletions(-) > > diff --git a/Documentation/networking/filter.rst b/Documentation/networking/filter.rst > index 43cdc4d34745..f69da5074860 100644 > --- a/Documentation/networking/filter.rst > +++ b/Documentation/networking/filter.rst > @@ -305,7 +305,7 @@ Possible BPF extensions are shown in the following table: > vlan_tci skb_vlan_tag_get(skb) > vlan_avail skb_vlan_tag_present(skb) > vlan_tpid skb->vlan_proto > - rand prandom_u32() > + rand get_random_u32() > =================================== ================================================= > > These extensions can also be prefixed with '#'. > diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c > index 7c37e09c92da..18c4f0e3e906 100644 > --- a/arch/parisc/kernel/process.c > +++ b/arch/parisc/kernel/process.c > @@ -288,7 +288,7 @@ __get_wchan(struct task_struct *p) > > static inline unsigned long brk_rnd(void) > { > - return (get_random_int() & BRK_RND_MASK) << PAGE_SHIFT; > + return (get_random_u32() & BRK_RND_MASK) << PAGE_SHIFT; > } > > unsigned long arch_randomize_brk(struct mm_struct *mm) > diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c > index 2b34294517a1..848b0702005d 100644 > --- a/arch/parisc/kernel/sys_parisc.c > +++ b/arch/parisc/kernel/sys_parisc.c > @@ -239,14 +239,14 @@ static unsigned long mmap_rnd(void) > unsigned long rnd = 0; > > if (current->flags & PF_RANDOMIZE) > - rnd = get_random_int() & MMAP_RND_MASK; > + rnd = get_random_u32() & MMAP_RND_MASK; > > return rnd << PAGE_SHIFT; > } > > unsigned long arch_mmap_rnd(void) > { > - return (get_random_int() & MMAP_RND_MASK) << PAGE_SHIFT; > + return (get_random_u32() & MMAP_RND_MASK) << PAGE_SHIFT; > } > > static unsigned long mmap_legacy_base(void) > diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c > index 5980ce348832..3327c47bc181 100644 > --- a/arch/s390/mm/mmap.c > +++ b/arch/s390/mm/mmap.c > @@ -37,7 +37,7 @@ static inline int mmap_is_legacy(struct rlimit *rlim_stack) > > unsigned long arch_mmap_rnd(void) > { > - return (get_random_int() & MMAP_RND_MASK) << PAGE_SHIFT; > + return (get_random_u32() & MMAP_RND_MASK) << PAGE_SHIFT; > } > > static unsigned long mmap_base_legacy(unsigned long rnd) > diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c > index 48276c0e479d..860b60273df3 100644 > --- a/arch/x86/kernel/cpu/amd.c > +++ b/arch/x86/kernel/cpu/amd.c > @@ -503,7 +503,7 @@ static void bsp_init_amd(struct cpuinfo_x86 *c) > va_align.flags = ALIGN_VA_32 | ALIGN_VA_64; > > /* A random value per boot for bit slice [12:upper_bit) */ > - va_align.bits = get_random_int() & va_align.mask; > + va_align.bits = get_random_u32() & va_align.mask; > } > > if (cpu_has(c, X86_FEATURE_MWAITX)) > diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c > index 329ff75b80b9..7bd1861ddbdf 100644 > --- a/drivers/gpu/drm/i915/i915_gem_gtt.c > +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c > @@ -137,12 +137,12 @@ static u64 random_offset(u64 start, u64 end, u64 len, u64 align) > range = round_down(end - len, align) - round_up(start, align); > if (range) { > if (sizeof(unsigned long) == sizeof(u64)) { > - addr = get_random_long(); > + addr = get_random_u64(); > } else { > - addr = get_random_int(); > + addr = get_random_u32(); > if (range > U32_MAX) { > addr <<= 32; > - addr |= get_random_int(); > + addr |= get_random_u32(); > } > } > div64_u64_rem(addr, range, &addr); > diff --git a/drivers/gpu/drm/i915/selftests/i915_selftest.c b/drivers/gpu/drm/i915/selftests/i915_selftest.c > index c4e932368b37..39da0fb0d6d2 100644 > --- a/drivers/gpu/drm/i915/selftests/i915_selftest.c > +++ b/drivers/gpu/drm/i915/selftests/i915_selftest.c > @@ -135,7 +135,7 @@ static int __run_selftests(const char *name, > int err = 0; > > while (!i915_selftest.random_seed) > - i915_selftest.random_seed = get_random_int(); > + i915_selftest.random_seed = get_random_u32(); > > i915_selftest.timeout_jiffies = > i915_selftest.timeout_ms ? > diff --git a/drivers/gpu/drm/selftests/test-drm_buddy.c b/drivers/gpu/drm/selftests/test-drm_buddy.c > index aca0c491040f..6340a711773f 100644 > --- a/drivers/gpu/drm/selftests/test-drm_buddy.c > +++ b/drivers/gpu/drm/selftests/test-drm_buddy.c > @@ -974,7 +974,7 @@ static int __init test_drm_buddy_init(void) > int err; > > while (!random_seed) > - random_seed = get_random_int(); > + random_seed = get_random_u32(); > > pr_info("Testing DRM buddy manager (struct drm_buddy), with random_seed=0x%x\n", > random_seed); > diff --git a/drivers/gpu/drm/selftests/test-drm_mm.c b/drivers/gpu/drm/selftests/test-drm_mm.c > index b768b53c4aee..1dc41d73d17e 100644 > --- a/drivers/gpu/drm/selftests/test-drm_mm.c > +++ b/drivers/gpu/drm/selftests/test-drm_mm.c > @@ -2463,7 +2463,7 @@ static int __init test_drm_mm_init(void) > int err; > > while (!random_seed) > - random_seed = get_random_int(); > + random_seed = get_random_u32(); > > pr_info("Testing DRM range manager (struct drm_mm), with random_seed=0x%x max_iterations=%u max_prime=%u\n", > random_seed, max_iterations, max_prime); > diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c > index 14392c942f49..499a425a3379 100644 > --- a/drivers/infiniband/hw/cxgb4/cm.c > +++ b/drivers/infiniband/hw/cxgb4/cm.c > @@ -734,7 +734,7 @@ static int send_connect(struct c4iw_ep *ep) > &ep->com.remote_addr; > int ret; > enum chip_type adapter_type = ep->com.dev->rdev.lldi.adapter_type; > - u32 isn = (prandom_u32() & ~7UL) - 1; > + u32 isn = (get_random_u32() & ~7UL) - 1; > struct net_device *netdev; > u64 params; > > @@ -2469,7 +2469,7 @@ static int accept_cr(struct c4iw_ep *ep, struct sk_buff *skb, > } > > if (!is_t4(adapter_type)) { > - u32 isn = (prandom_u32() & ~7UL) - 1; > + u32 isn = (get_random_u32() & ~7UL) - 1; > > skb = get_skb(skb, roundup(sizeof(*rpl5), 16), GFP_KERNEL); > rpl5 = __skb_put_zero(skb, roundup(sizeof(*rpl5), 16)); > diff --git a/drivers/infiniband/hw/hfi1/tid_rdma.c b/drivers/infiniband/hw/hfi1/tid_rdma.c > index 2a7abf7a1f7f..18b05ffb415a 100644 > --- a/drivers/infiniband/hw/hfi1/tid_rdma.c > +++ b/drivers/infiniband/hw/hfi1/tid_rdma.c > @@ -850,7 +850,7 @@ void hfi1_kern_init_ctxt_generations(struct hfi1_ctxtdata *rcd) > int i; > > for (i = 0; i < RXE_NUM_TID_FLOWS; i++) { > - rcd->flows[i].generation = mask_generation(prandom_u32()); > + rcd->flows[i].generation = mask_generation(get_random_u32()); > kern_set_hw_flow(rcd, KERN_GENERATION_RESERVED, i); > } > } > diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c > index d13ecbdd4391..a37cfac5e23f 100644 > --- a/drivers/infiniband/hw/mlx4/mad.c > +++ b/drivers/infiniband/hw/mlx4/mad.c > @@ -96,7 +96,7 @@ static void __propagate_pkey_ev(struct mlx4_ib_dev *dev, int port_num, > __be64 mlx4_ib_gen_node_guid(void) > { > #define NODE_GUID_HI ((u64) (((u64)IB_OPENIB_OUI) << 40)) > - return cpu_to_be64(NODE_GUID_HI | prandom_u32()); > + return cpu_to_be64(NODE_GUID_HI | get_random_u32()); > } > > __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx) > diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c > index fd9d7f2c4d64..a605cf66b83e 100644 > --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c > +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c > @@ -465,7 +465,7 @@ static int ipoib_cm_req_handler(struct ib_cm_id *cm_id, > goto err_qp; > } > > - psn = prandom_u32() & 0xffffff; > + psn = get_random_u32() & 0xffffff; > ret = ipoib_cm_modify_rx_qp(dev, cm_id, p->qp, psn); > if (ret) > goto err_modify; > diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c > index f4e1cc1ece43..5b0fc783bf01 100644 > --- a/drivers/md/raid5-cache.c > +++ b/drivers/md/raid5-cache.c > @@ -2993,7 +2993,7 @@ static int r5l_load_log(struct r5l_log *log) > } > create: > if (create_super) { > - log->last_cp_seq = prandom_u32(); > + log->last_cp_seq = get_random_u32(); > cp = 0; > r5l_log_write_empty_meta_block(log, cp, log->last_cp_seq); > /* > diff --git a/drivers/media/test-drivers/vivid/vivid-touch-cap.c b/drivers/media/test-drivers/vivid/vivid-touch-cap.c > index 792660a85bc1..6cc32eb54f9d 100644 > --- a/drivers/media/test-drivers/vivid/vivid-touch-cap.c > +++ b/drivers/media/test-drivers/vivid/vivid-touch-cap.c > @@ -210,7 +210,7 @@ static void vivid_fill_buff_noise(__s16 *tch_buf, int size) > > /* Fill 10% of the values within range -3 and 3, zero the others */ > for (i = 0; i < size; i++) { > - unsigned int rand = get_random_int(); > + unsigned int rand = get_random_u32(); > > if (rand % 10) > tch_buf[i] = 0; > @@ -272,7 +272,7 @@ void vivid_fillbuff_tch(struct vivid_dev *dev, struct vivid_buffer *buf) > return; > > if (test_pat_idx == 0) > - dev->tch_pat_random = get_random_int(); > + dev->tch_pat_random = get_random_u32(); > rand = dev->tch_pat_random; > > switch (test_pattern) { > diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanalabs/gaudi2/gaudi2.c > index 98336a1a84b0..413b284bf224 100644 > --- a/drivers/misc/habanalabs/gaudi2/gaudi2.c > +++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c > @@ -2917,7 +2917,7 @@ static void gaudi2_user_interrupt_setup(struct hl_device *hdev) > > static inline int gaudi2_get_non_zero_random_int(void) > { > - int rand = get_random_int(); > + int rand = get_random_u32(); > > return rand ? rand : 1; > } > diff --git a/drivers/mtd/nand/raw/nandsim.c b/drivers/mtd/nand/raw/nandsim.c > index 50bcf745e816..4bdaf4aa7007 100644 > --- a/drivers/mtd/nand/raw/nandsim.c > +++ b/drivers/mtd/nand/raw/nandsim.c > @@ -1402,7 +1402,7 @@ static int ns_do_read_error(struct nandsim *ns, int num) > > static void ns_do_bit_flips(struct nandsim *ns, int num) > { > - if (bitflips && prandom_u32() < (1 << 22)) { > + if (bitflips && get_random_u32() < (1 << 22)) { > int flips = 1; > if (bitflips > 1) > flips = prandom_u32_max(bitflips) + 1; > diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c > index 86d42306aa5e..c8543394a3bb 100644 > --- a/drivers/net/bonding/bond_main.c > +++ b/drivers/net/bonding/bond_main.c > @@ -4806,7 +4806,7 @@ static u32 bond_rr_gen_slave_id(struct bonding *bond) > > switch (packets_per_slave) { > case 0: > - slave_id = prandom_u32(); > + slave_id = get_random_u32(); > break; > case 1: > slave_id = this_cpu_inc_return(*bond->rr_tx_counter); > diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c > index f597b313acaa..2198e35d9e18 100644 > --- a/drivers/net/ethernet/broadcom/cnic.c > +++ b/drivers/net/ethernet/broadcom/cnic.c > @@ -4164,7 +4164,7 @@ static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev) > { > u32 seed; > > - seed = prandom_u32(); > + seed = get_random_u32(); > cnic_ctx_wr(dev, 45, 0, seed); > return 0; > } > diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c > index ac452a0111a9..b71ce6c5b512 100644 > --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c > +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c > @@ -1063,7 +1063,7 @@ static void chtls_pass_accept_rpl(struct sk_buff *skb, > opt2 |= WND_SCALE_EN_V(WSCALE_OK(tp)); > rpl5->opt0 = cpu_to_be64(opt0); > rpl5->opt2 = cpu_to_be32(opt2); > - rpl5->iss = cpu_to_be32((prandom_u32() & ~7UL) - 1); > + rpl5->iss = cpu_to_be32((get_random_u32() & ~7UL) - 1); > set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id); > t4_set_arp_err_handler(skb, sk, chtls_accept_rpl_arp_failure); > cxgb4_l2t_send(csk->egress_dev, skb, csk->l2t_entry); > diff --git a/drivers/net/ethernet/rocker/rocker_main.c b/drivers/net/ethernet/rocker/rocker_main.c > index fc83ec23bd1d..8c3bbafabb07 100644 > --- a/drivers/net/ethernet/rocker/rocker_main.c > +++ b/drivers/net/ethernet/rocker/rocker_main.c > @@ -129,7 +129,7 @@ static int rocker_reg_test(const struct rocker *rocker) > u64 test_reg; > u64 rnd; > > - rnd = prandom_u32(); > + rnd = get_random_u32(); > rnd >>= 1; > rocker_write32(rocker, TEST_REG, rnd); > test_reg = rocker_read32(rocker, TEST_REG); > @@ -139,9 +139,9 @@ static int rocker_reg_test(const struct rocker *rocker) > return -EIO; > } > > - rnd = prandom_u32(); > + rnd = get_random_u32(); > rnd <<= 31; > - rnd |= prandom_u32(); > + rnd |= get_random_u32(); > rocker_write64(rocker, TEST_REG64, rnd); > test_reg = rocker_read64(rocker, TEST_REG64); > if (test_reg != rnd * 2) { > diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c > index fabfbb0b40b0..374e1cc07a63 100644 > --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c > +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c > @@ -177,7 +177,7 @@ static int brcmf_pno_set_random(struct brcmf_if *ifp, struct brcmf_pno_info *pi) > memcpy(pfn_mac.mac, mac_addr, ETH_ALEN); > for (i = 0; i < ETH_ALEN; i++) { > pfn_mac.mac[i] &= mac_mask[i]; > - pfn_mac.mac[i] |= get_random_int() & ~(mac_mask[i]); > + pfn_mac.mac[i] |= get_random_u32() & ~(mac_mask[i]); > } > /* Clear multi bit */ > pfn_mac.mac[0] &= 0xFE; > diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c > index 134114ac1ac0..4fbb5c876b12 100644 > --- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c > +++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c > @@ -238,7 +238,7 @@ mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, > tx_info->pkt_len = pkt_len; > > mwifiex_form_mgmt_frame(skb, buf, len); > - *cookie = prandom_u32() | 1; > + *cookie = get_random_u32() | 1; > > if (ieee80211_is_action(mgmt->frame_control)) > skb = mwifiex_clone_skb_for_tx_status(priv, > @@ -302,7 +302,7 @@ mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy, > duration); > > if (!ret) { > - *cookie = prandom_u32() | 1; > + *cookie = get_random_u32() | 1; > priv->roc_cfg.cookie = *cookie; > priv->roc_cfg.chan = *chan; > > diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c > index 3ac373d29d93..84b9d3454e57 100644 > --- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c > +++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c > @@ -1159,7 +1159,7 @@ static int mgmt_tx(struct wiphy *wiphy, > const u8 *vendor_ie; > int ret = 0; > > - *cookie = prandom_u32(); > + *cookie = get_random_u32(); > priv->tx_cookie = *cookie; > mgmt = (const struct ieee80211_mgmt *)buf; > > diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c > index 1593e810b3ca..9c5416141d3c 100644 > --- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c > +++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c > @@ -449,7 +449,7 @@ qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, > { > struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); > const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; > - u32 short_cookie = prandom_u32(); > + u32 short_cookie = get_random_u32(); > u16 flags = 0; > u16 freq; > > diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c > index 3e3922d4c788..28c0f06e311f 100644 > --- a/drivers/net/wireless/ti/wlcore/main.c > +++ b/drivers/net/wireless/ti/wlcore/main.c > @@ -6100,7 +6100,7 @@ static int wl1271_register_hw(struct wl1271 *wl) > wl1271_warning("Fuse mac address is zero. using random mac"); > /* Use TI oui and a random nic */ > oui_addr = WLCORE_TI_OUI_ADDRESS; > - nic_addr = get_random_int(); > + nic_addr = get_random_u32(); > } else { > oui_addr = wl->fuse_oui_addr; > /* fuse has the BD_ADDR, the WLAN addresses are the next two */ > diff --git a/drivers/nvme/common/auth.c b/drivers/nvme/common/auth.c > index 04bd28f17dcc..d90e4f0c08b7 100644 > --- a/drivers/nvme/common/auth.c > +++ b/drivers/nvme/common/auth.c > @@ -23,7 +23,7 @@ u32 nvme_auth_get_seqnum(void) > > mutex_lock(&nvme_dhchap_mutex); > if (!nvme_dhchap_seqnum) > - nvme_dhchap_seqnum = prandom_u32(); > + nvme_dhchap_seqnum = get_random_u32(); > else { > nvme_dhchap_seqnum++; > if (!nvme_dhchap_seqnum) > diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c > index 53d91bf9c12a..c07d2e3b4bcf 100644 > --- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c > +++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c > @@ -254,7 +254,7 @@ static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb, > } else if (is_t5(lldi->adapter_type)) { > struct cpl_t5_act_open_req *req = > (struct cpl_t5_act_open_req *)skb->head; > - u32 isn = (prandom_u32() & ~7UL) - 1; > + u32 isn = (get_random_u32() & ~7UL) - 1; > > INIT_TP_WR(req, 0); > OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, > @@ -282,7 +282,7 @@ static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb, > } else { > struct cpl_t6_act_open_req *req = > (struct cpl_t6_act_open_req *)skb->head; > - u32 isn = (prandom_u32() & ~7UL) - 1; > + u32 isn = (get_random_u32() & ~7UL) - 1; > > INIT_TP_WR(req, 0); > OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, > diff --git a/drivers/target/iscsi/cxgbit/cxgbit_cm.c b/drivers/target/iscsi/cxgbit/cxgbit_cm.c > index 3336d2b78bf7..d9204c590d9a 100644 > --- a/drivers/target/iscsi/cxgbit/cxgbit_cm.c > +++ b/drivers/target/iscsi/cxgbit/cxgbit_cm.c > @@ -1202,7 +1202,7 @@ cxgbit_pass_accept_rpl(struct cxgbit_sock *csk, struct cpl_pass_accept_req *req) > opt2 |= CONG_CNTRL_V(CONG_ALG_NEWRENO); > > opt2 |= T5_ISS_F; > - rpl5->iss = cpu_to_be32((prandom_u32() & ~7UL) - 1); > + rpl5->iss = cpu_to_be32((get_random_u32() & ~7UL) - 1); > > opt2 |= T5_OPT_2_VALID_F; > > diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c > index c31c0d94d8b3..76075e29696c 100644 > --- a/drivers/thunderbolt/xdomain.c > +++ b/drivers/thunderbolt/xdomain.c > @@ -2438,7 +2438,7 @@ int tb_xdomain_init(void) > tb_property_add_immediate(xdomain_property_dir, "deviceid", 0x1); > tb_property_add_immediate(xdomain_property_dir, "devicerv", 0x80000100); > > - xdomain_property_block_gen = prandom_u32(); > + xdomain_property_block_gen = get_random_u32(); > return 0; > } > > diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c > index 4df6772802d7..285b83c20326 100644 > --- a/drivers/video/fbdev/uvesafb.c > +++ b/drivers/video/fbdev/uvesafb.c > @@ -167,7 +167,7 @@ static int uvesafb_exec(struct uvesafb_ktask *task) > memcpy(&m->id, &uvesafb_cn_id, sizeof(m->id)); > m->seq = seq; > m->len = len; > - m->ack = prandom_u32(); > + m->ack = get_random_u32(); > > /* uvesafb_task structure */ > memcpy(m + 1, &task->t, sizeof(task->t)); > diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c > index a795437b86d0..5590a1e83126 100644 > --- a/fs/exfat/inode.c > +++ b/fs/exfat/inode.c > @@ -552,7 +552,7 @@ static int exfat_fill_inode(struct inode *inode, struct exfat_dir_entry *info) > inode->i_uid = sbi->options.fs_uid; > inode->i_gid = sbi->options.fs_gid; > inode_inc_iversion(inode); > - inode->i_generation = prandom_u32(); > + inode->i_generation = get_random_u32(); > > if (info->attr & ATTR_SUBDIR) { /* directory */ > inode->i_generation &= ~1; > diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c > index 36d5bc595cc2..3956e24fa6e9 100644 > --- a/fs/ext4/ialloc.c > +++ b/fs/ext4/ialloc.c > @@ -1279,7 +1279,7 @@ struct inode *__ext4_new_inode(struct user_namespace *mnt_userns, > EXT4_GROUP_INFO_IBITMAP_CORRUPT); > goto out; > } > - inode->i_generation = prandom_u32(); > + inode->i_generation = get_random_u32(); > > /* Precompute checksum seed for inode metadata */ > if (ext4_has_metadata_csum(sb)) { > diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c > index 3cf3ec4b1c21..99df5b8ae149 100644 > --- a/fs/ext4/ioctl.c > +++ b/fs/ext4/ioctl.c > @@ -453,8 +453,8 @@ static long swap_inode_boot_loader(struct super_block *sb, > > inode->i_ctime = inode_bl->i_ctime = current_time(inode); > > - inode->i_generation = prandom_u32(); > - inode_bl->i_generation = prandom_u32(); > + inode->i_generation = get_random_u32(); > + inode_bl->i_generation = get_random_u32(); > ext4_reset_inode_seed(inode); > ext4_reset_inode_seed(inode_bl); > > diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c > index 9af68a7ecdcf..588cb09c5291 100644 > --- a/fs/ext4/mmp.c > +++ b/fs/ext4/mmp.c > @@ -265,7 +265,7 @@ static unsigned int mmp_new_seq(void) > u32 new_seq; > > do { > - new_seq = prandom_u32(); > + new_seq = get_random_u32(); > } while (new_seq > EXT4_MMP_SEQ_MAX); > > return new_seq; > diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c > index bf00d5057abb..939536982c3e 100644 > --- a/fs/f2fs/namei.c > +++ b/fs/f2fs/namei.c > @@ -50,7 +50,7 @@ static struct inode *f2fs_new_inode(struct user_namespace *mnt_userns, > inode->i_blocks = 0; > inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode); > F2FS_I(inode)->i_crtime = inode->i_mtime; > - inode->i_generation = prandom_u32(); > + inode->i_generation = get_random_u32(); > > if (S_ISDIR(inode->i_mode)) > F2FS_I(inode)->i_current_depth = 1; > diff --git a/fs/fat/inode.c b/fs/fat/inode.c > index a38238d75c08..1cbcc4608dc7 100644 > --- a/fs/fat/inode.c > +++ b/fs/fat/inode.c > @@ -523,7 +523,7 @@ int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de) > inode->i_uid = sbi->options.fs_uid; > inode->i_gid = sbi->options.fs_gid; > inode_inc_iversion(inode); > - inode->i_generation = prandom_u32(); > + inode->i_generation = get_random_u32(); > > if ((de->attr & ATTR_DIR) && !IS_FREE(de->name)) { > inode->i_generation &= ~1; > diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c > index c5d199d7e6b4..e10c16cd7881 100644 > --- a/fs/nfsd/nfs4state.c > +++ b/fs/nfsd/nfs4state.c > @@ -4346,8 +4346,8 @@ void nfsd4_init_leases_net(struct nfsd_net *nn) > nn->nfsd4_grace = 90; > nn->somebody_reclaimed = false; > nn->track_reclaim_completes = false; > - nn->clverifier_counter = prandom_u32(); > - nn->clientid_base = prandom_u32(); > + nn->clverifier_counter = get_random_u32(); > + nn->clientid_base = get_random_u32(); > nn->clientid_counter = nn->clientid_base + 1; > nn->s2s_cp_cl_id = nn->clientid_counter++; > > diff --git a/fs/ntfs3/fslog.c b/fs/ntfs3/fslog.c > index e7c494005122..0d611a6c5511 100644 > --- a/fs/ntfs3/fslog.c > +++ b/fs/ntfs3/fslog.c > @@ -3819,7 +3819,7 @@ int log_replay(struct ntfs_inode *ni, bool *initialized) > } > > log_init_pg_hdr(log, page_size, page_size, 1, 1); > - log_create(log, l_size, 0, get_random_int(), false, false); > + log_create(log, l_size, 0, get_random_u32(), false, false); > > log->ra = ra; > > @@ -3893,7 +3893,7 @@ int log_replay(struct ntfs_inode *ni, bool *initialized) > > /* Do some checks based on whether we have a valid log page. */ > if (!rst_info.valid_page) { > - open_log_count = get_random_int(); > + open_log_count = get_random_u32(); > goto init_log_instance; > } > open_log_count = le32_to_cpu(ra2->open_log_count); > @@ -4044,7 +4044,7 @@ int log_replay(struct ntfs_inode *ni, bool *initialized) > memcpy(ra->clients, Add2Ptr(ra2, t16), > le16_to_cpu(ra2->ra_len) - t16); > > - log->current_openlog_count = get_random_int(); > + log->current_openlog_count = get_random_u32(); > ra->open_log_count = cpu_to_le32(log->current_openlog_count); > log->ra_size = offsetof(struct RESTART_AREA, clients) + > sizeof(struct CLIENT_REC); > diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c > index 75dab0ae3939..4619652046cf 100644 > --- a/fs/ubifs/journal.c > +++ b/fs/ubifs/journal.c > @@ -503,7 +503,7 @@ static void mark_inode_clean(struct ubifs_info *c, struct ubifs_inode *ui) > static void set_dent_cookie(struct ubifs_info *c, struct ubifs_dent_node *dent) > { > if (c->double_hash) > - dent->cookie = (__force __le32) prandom_u32(); > + dent->cookie = (__force __le32) get_random_u32(); > else > dent->cookie = 0; > } > diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c > index 7838b31126e2..94db50eb706a 100644 > --- a/fs/xfs/libxfs/xfs_ialloc.c > +++ b/fs/xfs/libxfs/xfs_ialloc.c > @@ -805,7 +805,7 @@ xfs_ialloc_ag_alloc( > * number from being easily guessable. > */ > error = xfs_ialloc_inode_init(args.mp, tp, NULL, newlen, pag->pag_agno, > - args.agbno, args.len, prandom_u32()); > + args.agbno, args.len, get_random_u32()); > > if (error) > return error; > diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c > index 2bbe7916a998..eae7427062cf 100644 > --- a/fs/xfs/xfs_icache.c > +++ b/fs/xfs/xfs_icache.c > @@ -596,7 +596,7 @@ xfs_iget_cache_miss( > */ > if (xfs_has_v3inodes(mp) && > (flags & XFS_IGET_CREATE) && !xfs_has_ikeep(mp)) { > - VFS_I(ip)->i_generation = prandom_u32(); > + VFS_I(ip)->i_generation = get_random_u32(); > } else { > struct xfs_buf *bp; > > diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c > index 386b0307aed8..ad8652cbf245 100644 > --- a/fs/xfs/xfs_log.c > +++ b/fs/xfs/xfs_log.c > @@ -3544,7 +3544,7 @@ xlog_ticket_alloc( > tic->t_curr_res = unit_res; > tic->t_cnt = cnt; > tic->t_ocnt = cnt; > - tic->t_tid = prandom_u32(); > + tic->t_tid = get_random_u32(); > if (permanent) > tic->t_flags |= XLOG_TIC_PERM_RESERV; > > diff --git a/include/net/netfilter/nf_queue.h b/include/net/netfilter/nf_queue.h > index 980daa6e1e3a..c81021ab07aa 100644 > --- a/include/net/netfilter/nf_queue.h > +++ b/include/net/netfilter/nf_queue.h > @@ -43,7 +43,7 @@ void nf_queue_entry_free(struct nf_queue_entry *entry); > static inline void init_hashrandom(u32 *jhash_initval) > { > while (*jhash_initval == 0) > - *jhash_initval = prandom_u32(); > + *jhash_initval = get_random_u32(); > } > > static inline u32 hash_v4(const struct iphdr *iph, u32 initval) > diff --git a/include/net/red.h b/include/net/red.h > index be11dbd26492..56d0647d7356 100644 > --- a/include/net/red.h > +++ b/include/net/red.h > @@ -364,7 +364,7 @@ static inline unsigned long red_calc_qavg(const struct red_parms *p, > > static inline u32 red_random(const struct red_parms *p) > { > - return reciprocal_divide(prandom_u32(), p->max_P_reciprocal); > + return reciprocal_divide(get_random_u32(), p->max_P_reciprocal); > } > > static inline int red_mark_probability(const struct red_parms *p, > diff --git a/include/net/sock.h b/include/net/sock.h > index d08cfe190a78..ca2b26686677 100644 > --- a/include/net/sock.h > +++ b/include/net/sock.h > @@ -2091,7 +2091,7 @@ static inline kuid_t sock_net_uid(const struct net *net, const struct sock *sk) > > static inline u32 net_tx_rndhash(void) > { > - u32 v = prandom_u32(); > + u32 v = get_random_u32(); > > return v ?: 1; > } > diff --git a/kernel/bpf/bloom_filter.c b/kernel/bpf/bloom_filter.c > index b9ea539a5561..48ee750849f2 100644 > --- a/kernel/bpf/bloom_filter.c > +++ b/kernel/bpf/bloom_filter.c > @@ -158,7 +158,7 @@ static struct bpf_map *bloom_map_alloc(union bpf_attr *attr) > attr->value_size / sizeof(u32); > > if (!(attr->map_flags & BPF_F_ZERO_SEED)) > - bloom->hash_seed = get_random_int(); > + bloom->hash_seed = get_random_u32(); > > return &bloom->map; > } > diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c > index ade6b03b1d9b..f6b3486f001a 100644 > --- a/kernel/bpf/core.c > +++ b/kernel/bpf/core.c > @@ -1211,7 +1211,7 @@ static int bpf_jit_blind_insn(const struct bpf_insn *from, > bool emit_zext) > { > struct bpf_insn *to = to_buff; > - u32 imm_rnd = get_random_int(); > + u32 imm_rnd = get_random_u32(); > s16 off; > > BUILD_BUG_ON(BPF_REG_AX + 1 != MAX_BPF_JIT_REG); > diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c > index 6c530a5e560a..1d36173598a0 100644 > --- a/kernel/bpf/hashtab.c > +++ b/kernel/bpf/hashtab.c > @@ -546,7 +546,7 @@ static struct bpf_map *htab_map_alloc(union bpf_attr *attr) > if (htab->map.map_flags & BPF_F_ZERO_SEED) > htab->hashrnd = 0; > else > - htab->hashrnd = get_random_int(); > + htab->hashrnd = get_random_u32(); > > htab_init_buckets(htab); > > diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c > index 3eadb14e090b..943af5abdc18 100644 > --- a/kernel/bpf/verifier.c > +++ b/kernel/bpf/verifier.c > @@ -13317,7 +13317,7 @@ static int opt_subreg_zext_lo32_rnd_hi32(struct bpf_verifier_env *env, > aux[adj_idx].ptr_type == PTR_TO_CTX) > continue; > > - imm_rnd = get_random_int(); > + imm_rnd = get_random_u32(); > rnd_hi32_patch[0] = insn; > rnd_hi32_patch[1].imm = imm_rnd; > rnd_hi32_patch[3].dst_reg = load_reg; > diff --git a/kernel/kcsan/selftest.c b/kernel/kcsan/selftest.c > index 75712959c84e..58b94deae5c0 100644 > --- a/kernel/kcsan/selftest.c > +++ b/kernel/kcsan/selftest.c > @@ -26,7 +26,7 @@ > static bool __init test_requires(void) > { > /* random should be initialized for the below tests */ > - return prandom_u32() + prandom_u32() != 0; > + return get_random_u32() + get_random_u32() != 0; > } > > /* > diff --git a/lib/random32.c b/lib/random32.c > index d5d9029362cb..d4f19e1a69d4 100644 > --- a/lib/random32.c > +++ b/lib/random32.c > @@ -47,7 +47,7 @@ > * @state: pointer to state structure holding seeded state. > * > * This is used for pseudo-randomness with no outside seeding. > - * For more random results, use prandom_u32(). > + * For more random results, use get_random_u32(). > */ > u32 prandom_u32_state(struct rnd_state *state) > { > diff --git a/lib/reed_solomon/test_rslib.c b/lib/reed_solomon/test_rslib.c > index 4d241bdc88aa..848e7eb5da92 100644 > --- a/lib/reed_solomon/test_rslib.c > +++ b/lib/reed_solomon/test_rslib.c > @@ -164,7 +164,7 @@ static int get_rcw_we(struct rs_control *rs, struct wspace *ws, > > /* Load c with random data and encode */ > for (i = 0; i < dlen; i++) > - c[i] = prandom_u32() & nn; > + c[i] = get_random_u32() & nn; > > memset(c + dlen, 0, nroots * sizeof(*c)); > encode_rs16(rs, c, dlen, c + dlen, 0); > @@ -178,7 +178,7 @@ static int get_rcw_we(struct rs_control *rs, struct wspace *ws, > for (i = 0; i < errs; i++) { > do { > /* Error value must be nonzero */ > - errval = prandom_u32() & nn; > + errval = get_random_u32() & nn; > } while (errval == 0); > > do { > @@ -206,7 +206,7 @@ static int get_rcw_we(struct rs_control *rs, struct wspace *ws, > /* Erasure with corrupted symbol */ > do { > /* Error value must be nonzero */ > - errval = prandom_u32() & nn; > + errval = get_random_u32() & nn; > } while (errval == 0); > > errlocs[errloc] = 1; > diff --git a/lib/test_fprobe.c b/lib/test_fprobe.c > index ed70637a2ffa..e0381b3ec410 100644 > --- a/lib/test_fprobe.c > +++ b/lib/test_fprobe.c > @@ -145,7 +145,7 @@ static unsigned long get_ftrace_location(void *func) > static int fprobe_test_init(struct kunit *test) > { > do { > - rand1 = prandom_u32(); > + rand1 = get_random_u32(); > } while (rand1 <= div_factor); > > target = fprobe_selftest_target; > diff --git a/lib/test_kprobes.c b/lib/test_kprobes.c > index a5edc2ebc947..eeb1d728d974 100644 > --- a/lib/test_kprobes.c > +++ b/lib/test_kprobes.c > @@ -341,7 +341,7 @@ static int kprobes_test_init(struct kunit *test) > stacktrace_driver = kprobe_stacktrace_driver; > > do { > - rand1 = prandom_u32(); > + rand1 = get_random_u32(); > } while (rand1 <= div_factor); > return 0; > } > diff --git a/lib/test_min_heap.c b/lib/test_min_heap.c > index d19c8080fd4d..7b01b4387cfb 100644 > --- a/lib/test_min_heap.c > +++ b/lib/test_min_heap.c > @@ -83,7 +83,7 @@ static __init int test_heapify_all(bool min_heap) > /* Test with randomly generated values. */ > heap.nr = ARRAY_SIZE(values); > for (i = 0; i < heap.nr; i++) > - values[i] = get_random_int(); > + values[i] = get_random_u32(); > > min_heapify_all(&heap, &funcs); > err += pop_verify_heap(min_heap, &heap, &funcs); > @@ -116,7 +116,7 @@ static __init int test_heap_push(bool min_heap) > > /* Test with randomly generated values. */ > while (heap.nr < heap.size) { > - temp = get_random_int(); > + temp = get_random_u32(); > min_heap_push(&heap, &temp, &funcs); > } > err += pop_verify_heap(min_heap, &heap, &funcs); > @@ -158,7 +158,7 @@ static __init int test_heap_pop_push(bool min_heap) > > /* Test with randomly generated values. */ > for (i = 0; i < ARRAY_SIZE(data); i++) { > - temp = get_random_int(); > + temp = get_random_u32(); > min_heap_pop_push(&heap, &temp, &funcs); > } > err += pop_verify_heap(min_heap, &heap, &funcs); > diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c > index 5a1dd4736b56..b358a74ed7ed 100644 > --- a/lib/test_rhashtable.c > +++ b/lib/test_rhashtable.c > @@ -291,7 +291,7 @@ static int __init test_rhltable(unsigned int entries) > if (WARN_ON(err)) > goto out_free; > > - k = prandom_u32(); > + k = get_random_u32(); > ret = 0; > for (i = 0; i < entries; i++) { > rhl_test_objects[i].value.id = k; > @@ -369,12 +369,12 @@ static int __init test_rhltable(unsigned int entries) > pr_info("test %d random rhlist add/delete operations\n", entries); > for (j = 0; j < entries; j++) { > u32 i = prandom_u32_max(entries); > - u32 prand = prandom_u32(); > + u32 prand = get_random_u32(); > > cond_resched(); > > if (prand == 0) > - prand = prandom_u32(); > + prand = get_random_u32(); > > if (prand & 1) { > prand >>= 1; > diff --git a/mm/shmem.c b/mm/shmem.c > index 42e5888bf84d..6f2cef73808d 100644 > --- a/mm/shmem.c > +++ b/mm/shmem.c > @@ -2330,7 +2330,7 @@ static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir, > inode_init_owner(&init_user_ns, inode, dir, mode); > inode->i_blocks = 0; > inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode); > - inode->i_generation = prandom_u32(); > + inode->i_generation = get_random_u32(); > info = SHMEM_I(inode); > memset(info, 0, (char *)inode - (char *)info); > spin_lock_init(&info->lock); > diff --git a/mm/slab.c b/mm/slab.c > index 10e96137b44f..36ed7182bad5 100644 > --- a/mm/slab.c > +++ b/mm/slab.c > @@ -2380,7 +2380,7 @@ static bool freelist_state_initialize(union freelist_init_state *state, > unsigned int rand; > > /* Use best entropy available to define a random shift */ > - rand = get_random_int(); > + rand = get_random_u32(); > > /* Use a random state if the pre-computed list is not available */ > if (!cachep->random_seq) { > diff --git a/net/802/garp.c b/net/802/garp.c > index f6012f8e59f0..c1bb67e25430 100644 > --- a/net/802/garp.c > +++ b/net/802/garp.c > @@ -407,7 +407,7 @@ static void garp_join_timer_arm(struct garp_applicant *app) > { > unsigned long delay; > > - delay = (u64)msecs_to_jiffies(garp_join_time) * prandom_u32() >> 32; > + delay = (u64)msecs_to_jiffies(garp_join_time) * get_random_u32() >> 32; > mod_timer(&app->join_timer, jiffies + delay); > } > > diff --git a/net/802/mrp.c b/net/802/mrp.c > index 35e04cc5390c..3e9fe9f5d9bf 100644 > --- a/net/802/mrp.c > +++ b/net/802/mrp.c > @@ -592,7 +592,7 @@ static void mrp_join_timer_arm(struct mrp_applicant *app) > { > unsigned long delay; > > - delay = (u64)msecs_to_jiffies(mrp_join_time) * prandom_u32() >> 32; > + delay = (u64)msecs_to_jiffies(mrp_join_time) * get_random_u32() >> 32; > mod_timer(&app->join_timer, jiffies + delay); > } > > diff --git a/net/core/pktgen.c b/net/core/pktgen.c > index 5ca4f953034c..c3763056c554 100644 > --- a/net/core/pktgen.c > +++ b/net/core/pktgen.c > @@ -2464,7 +2464,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev) > for (i = 0; i < pkt_dev->nr_labels; i++) > if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) > pkt_dev->labels[i] = MPLS_STACK_BOTTOM | > - ((__force __be32)prandom_u32() & > + ((__force __be32)get_random_u32() & > htonl(0x000fffff)); > } > > @@ -2568,7 +2568,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev) > > for (i = 0; i < 4; i++) { > pkt_dev->cur_in6_daddr.s6_addr32[i] = > - (((__force __be32)prandom_u32() | > + (((__force __be32)get_random_u32() | > pkt_dev->min_in6_daddr.s6_addr32[i]) & > pkt_dev->max_in6_daddr.s6_addr32[i]); > } > diff --git a/net/ipv4/route.c b/net/ipv4/route.c > index 795cbe1de912..1a37a07c7163 100644 > --- a/net/ipv4/route.c > +++ b/net/ipv4/route.c > @@ -3664,7 +3664,7 @@ static __net_init int rt_genid_init(struct net *net) > { > atomic_set(&net->ipv4.rt_genid, 0); > atomic_set(&net->fnhe_genid, 0); > - atomic_set(&net->ipv4.dev_addr_genid, get_random_int()); > + atomic_set(&net->ipv4.dev_addr_genid, get_random_u32()); > return 0; > } > > diff --git a/net/ipv4/tcp_cdg.c b/net/ipv4/tcp_cdg.c > index ddc7ba0554bd..efcd145f06db 100644 > --- a/net/ipv4/tcp_cdg.c > +++ b/net/ipv4/tcp_cdg.c > @@ -243,7 +243,7 @@ static bool tcp_cdg_backoff(struct sock *sk, u32 grad) > struct cdg *ca = inet_csk_ca(sk); > struct tcp_sock *tp = tcp_sk(sk); > > - if (prandom_u32() <= nexp_u32(grad * backoff_factor)) > + if (get_random_u32() <= nexp_u32(grad * backoff_factor)) > return false; > > if (use_ineff) { > diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c > index 560d9eadeaa5..1a5b2464548e 100644 > --- a/net/ipv4/udp.c > +++ b/net/ipv4/udp.c > @@ -246,7 +246,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, > inet_get_local_port_range(net, &low, &high); > remaining = (high - low) + 1; > > - rand = prandom_u32(); > + rand = get_random_u32(); > first = reciprocal_scale(rand, remaining) + low; > /* > * force rand to be an odd multiple of UDP_HTABLE_SIZE > diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c > index ceb85c67ce39..18481eb76a0a 100644 > --- a/net/ipv6/ip6_flowlabel.c > +++ b/net/ipv6/ip6_flowlabel.c > @@ -220,7 +220,7 @@ static struct ip6_flowlabel *fl_intern(struct net *net, > spin_lock_bh(&ip6_fl_lock); > if (label == 0) { > for (;;) { > - fl->label = htonl(prandom_u32())&IPV6_FLOWLABEL_MASK; > + fl->label = htonl(get_random_u32())&IPV6_FLOWLABEL_MASK; > if (fl->label) { > lfl = __fl_lookup(net, fl->label); > if (!lfl) > diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c > index 2880dc7d9a49..2685c3f15e9d 100644 > --- a/net/ipv6/output_core.c > +++ b/net/ipv6/output_core.c > @@ -18,7 +18,7 @@ static u32 __ipv6_select_ident(struct net *net, > u32 id; > > do { > - id = prandom_u32(); > + id = get_random_u32(); > } while (!id); > > return id; > diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c > index fb67f1ca2495..8c04bb57dd6f 100644 > --- a/net/netfilter/ipvs/ip_vs_conn.c > +++ b/net/netfilter/ipvs/ip_vs_conn.c > @@ -1308,7 +1308,7 @@ void ip_vs_random_dropentry(struct netns_ipvs *ipvs) > * Randomly scan 1/32 of the whole table every second > */ > for (idx = 0; idx < (ip_vs_conn_tab_size>>5); idx++) { > - unsigned int hash = prandom_u32() & ip_vs_conn_tab_mask; > + unsigned int hash = get_random_u32() & ip_vs_conn_tab_mask; > > hlist_for_each_entry_rcu(cp, &ip_vs_conn_tab[hash], c_list) { > if (cp->ipvs != ipvs) > diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c > index 203e24ae472c..b26c1dcfc27b 100644 > --- a/net/netfilter/xt_statistic.c > +++ b/net/netfilter/xt_statistic.c > @@ -34,7 +34,7 @@ statistic_mt(const struct sk_buff *skb, struct xt_action_param *par) > > switch (info->mode) { > case XT_STATISTIC_MODE_RANDOM: > - if ((prandom_u32() & 0x7FFFFFFF) < info->u.random.probability) > + if ((get_random_u32() & 0x7FFFFFFF) < info->u.random.probability) > ret = !ret; > break; > case XT_STATISTIC_MODE_NTH: > diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c > index 868db4669a29..ca3ebfdb3023 100644 > --- a/net/openvswitch/actions.c > +++ b/net/openvswitch/actions.c > @@ -1033,7 +1033,7 @@ static int sample(struct datapath *dp, struct sk_buff *skb, > actions = nla_next(sample_arg, &rem); > > if ((arg->probability != U32_MAX) && > - (!arg->probability || prandom_u32() > arg->probability)) { > + (!arg->probability || get_random_u32() > arg->probability)) { > if (last) > consume_skb(skb); > return 0; > diff --git a/net/rds/bind.c b/net/rds/bind.c > index 5b5fb4ca8d3e..052776ddcc34 100644 > --- a/net/rds/bind.c > +++ b/net/rds/bind.c > @@ -104,7 +104,7 @@ static int rds_add_bound(struct rds_sock *rs, const struct in6_addr *addr, > return -EINVAL; > last = rover; > } else { > - rover = max_t(u16, prandom_u32(), 2); > + rover = max_t(u16, get_random_u32(), 2); > last = rover - 1; > } > > diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c > index 637ef1757931..48e3e05228a1 100644 > --- a/net/sched/sch_cake.c > +++ b/net/sched/sch_cake.c > @@ -573,7 +573,7 @@ static bool cobalt_should_drop(struct cobalt_vars *vars, > > /* Simple BLUE implementation. Lack of ECN is deliberate. */ > if (vars->p_drop) > - drop |= (prandom_u32() < vars->p_drop); > + drop |= (get_random_u32() < vars->p_drop); > > /* Overload the drop_next field as an activity timeout */ > if (!vars->count) > diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c > index 3ca320f1a031..88c1fa2e1d15 100644 > --- a/net/sched/sch_netem.c > +++ b/net/sched/sch_netem.c > @@ -171,7 +171,7 @@ static inline struct netem_skb_cb *netem_skb_cb(struct sk_buff *skb) > static void init_crandom(struct crndstate *state, unsigned long rho) > { > state->rho = rho; > - state->last = prandom_u32(); > + state->last = get_random_u32(); > } > > /* get_crandom - correlated random number generator > @@ -184,9 +184,9 @@ static u32 get_crandom(struct crndstate *state) > unsigned long answer; > > if (!state || state->rho == 0) /* no correlation */ > - return prandom_u32(); > + return get_random_u32(); > > - value = prandom_u32(); > + value = get_random_u32(); > rho = (u64)state->rho + 1; > answer = (value * ((1ull<<32) - rho) + state->last * rho) >> 32; > state->last = answer; > @@ -200,7 +200,7 @@ static u32 get_crandom(struct crndstate *state) > static bool loss_4state(struct netem_sched_data *q) > { > struct clgstate *clg = &q->clg; > - u32 rnd = prandom_u32(); > + u32 rnd = get_random_u32(); > > /* > * Makes a comparison between rnd and the transition > @@ -268,15 +268,15 @@ static bool loss_gilb_ell(struct netem_sched_data *q) > > switch (clg->state) { > case GOOD_STATE: > - if (prandom_u32() < clg->a1) > + if (get_random_u32() < clg->a1) > clg->state = BAD_STATE; > - if (prandom_u32() < clg->a4) > + if (get_random_u32() < clg->a4) > return true; > break; > case BAD_STATE: > - if (prandom_u32() < clg->a2) > + if (get_random_u32() < clg->a2) > clg->state = GOOD_STATE; > - if (prandom_u32() > clg->a3) > + if (get_random_u32() > clg->a3) > return true; > } > > @@ -632,7 +632,7 @@ static void get_slot_next(struct netem_sched_data *q, u64 now) > > if (!q->slot_dist) > next_delay = q->slot_config.min_delay + > - (prandom_u32() * > + (get_random_u32() * > (q->slot_config.max_delay - > q->slot_config.min_delay) >> 32); > else > diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c > index 5f96e75f9eec..48337687848c 100644 > --- a/net/sunrpc/auth_gss/gss_krb5_wrap.c > +++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c > @@ -130,8 +130,8 @@ gss_krb5_make_confounder(char *p, u32 conflen) > > /* initialize to random value */ > if (i == 0) { > - i = prandom_u32(); > - i = (i << 32) | prandom_u32(); > + i = get_random_u32(); > + i = (i << 32) | get_random_u32(); > } > > switch (conflen) { > diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c > index f8fae7815649..9407007f47ae 100644 > --- a/net/sunrpc/xprt.c > +++ b/net/sunrpc/xprt.c > @@ -1868,7 +1868,7 @@ xprt_alloc_xid(struct rpc_xprt *xprt) > static void > xprt_init_xid(struct rpc_xprt *xprt) > { > - xprt->xid = prandom_u32(); > + xprt->xid = get_random_u32(); > } > > static void > diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c > index bf338b782fc4..35bd8132113f 100644 > --- a/net/unix/af_unix.c > +++ b/net/unix/af_unix.c > @@ -1116,7 +1116,7 @@ static int unix_autobind(struct sock *sk) > addr->name->sun_family = AF_UNIX; > refcount_set(&addr->refcnt, 1); > > - ordernum = prandom_u32(); > + ordernum = get_random_u32(); > lastnum = ordernum & 0xFFFFF; > retry: > ordernum = (ordernum + 1) & 0xFFFFF; > -- > 2.37.3 >
On Fri, Oct 07, 2022 at 10:34:47PM +0200, Rolf Eike Beer wrote: > > diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c > > index 7c37e09c92da..18c4f0e3e906 100644 > > --- a/arch/parisc/kernel/process.c > > +++ b/arch/parisc/kernel/process.c > > @@ -288,7 +288,7 @@ __get_wchan(struct task_struct *p) > > > > static inline unsigned long brk_rnd(void) > > { > > - return (get_random_int() & BRK_RND_MASK) << PAGE_SHIFT; > > + return (get_random_u32() & BRK_RND_MASK) << PAGE_SHIFT; > > } > > Can't this be > > prandom_u32_max(BRK_RND_MASK + 1) << PAGE_SHIFT > > ? More similar code with other masks follows below. I guess it can, because BRK_RND_MASK happens to have all its lower bits set. But as a "_MASK" maybe this isn't a given, and I don't want to change intended semantics in this patchset. It's also not more efficient, because BRK_RND_MASK is actually an expression: #define BRK_RND_MASK (is_32bit_task() ? 0x07ffUL : 0x3ffffUL) So at compile-time, the compiler can't prove that it's <= U16_MAX, since it isn't always the case, so it'll use get_random_u32() anyway. [Side note: maybe that compile-time check should become a runtime check, but I'll need to do some benchmarking before changing that and introducing two added branches to every non-constant invocation, so for now it's a compile-time check. Fortunately the vast majority of uses are done on inputs the compiler can prove something about.] > > > diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c > > b/drivers/gpu/drm/i915/i915_gem_gtt.c index 329ff75b80b9..7bd1861ddbdf > > 100644 > > --- a/drivers/gpu/drm/i915/i915_gem_gtt.c > > +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c > > @@ -137,12 +137,12 @@ static u64 random_offset(u64 start, u64 end, u64 len, > > u64 align) range = round_down(end - len, align) - round_up(start, align); > > if (range) { > > if (sizeof(unsigned long) == sizeof(u64)) { > > - addr = get_random_long(); > > + addr = get_random_u64(); > > } else { > > - addr = get_random_int(); > > + addr = get_random_u32(); > > if (range > U32_MAX) { > > addr <<= 32; > > - addr |= get_random_int(); > > + addr |= get_random_u32(); > > } > > } > > div64_u64_rem(addr, range, &addr); > > How about > > if (sizeof(unsigned long) == sizeof(u64) || range > > U32_MAX) > addr = get_random_u64(); > else > addr = get_random_u32(); > Yes, maybe, probably, indeed... But I don't want to go wild and start fixing all the weird algorithms everywhere. My goal is to only make changes that are "obviously right". But maybe after this lands this is something that you or I can submit to the i915 people as an optimization. > > diff --git a/drivers/infiniband/hw/cxgb4/cm.c > > b/drivers/infiniband/hw/cxgb4/cm.c index 14392c942f49..499a425a3379 100644 > > --- a/drivers/infiniband/hw/cxgb4/cm.c > > +++ b/drivers/infiniband/hw/cxgb4/cm.c > > @@ -734,7 +734,7 @@ static int send_connect(struct c4iw_ep *ep) > > &ep->com.remote_addr; > > int ret; > > enum chip_type adapter_type = ep->com.dev->rdev.lldi.adapter_type; > > - u32 isn = (prandom_u32() & ~7UL) - 1; > > + u32 isn = (get_random_u32() & ~7UL) - 1; > > struct net_device *netdev; > > u64 params; > > > > @@ -2469,7 +2469,7 @@ static int accept_cr(struct c4iw_ep *ep, struct > > sk_buff *skb, } > > > > if (!is_t4(adapter_type)) { > > - u32 isn = (prandom_u32() & ~7UL) - 1; > > + u32 isn = (get_random_u32() & ~7UL) - 1; > > u32 isn = get_random_u32() | 0x7; Again, maybe so, but same rationale as above. > > static void ns_do_bit_flips(struct nandsim *ns, int num) > > { > > - if (bitflips && prandom_u32() < (1 << 22)) { > > + if (bitflips && get_random_u32() < (1 << 22)) { > > Doing "get_random_u16() < (1 << 6)" should have the same probability with only > 2 bytes of random, no? That's very clever. (1<<22)/(1<<32) == (1<<6)/(1<<16). But also, same rationale as above for not doing that. Anyway, I realize this is probably disappointing to read. But also, we can come back to those optimization cases later pretty easily. Jason
From: Jason A. Donenfeld > Sent: 07 October 2022 19:01 > > The prandom_u32() function has been a deprecated inline wrapper around > get_random_u32() for several releases now, and compiles down to the > exact same code. Replace the deprecated wrapper with a direct call to > the real function. The same also applies to get_random_int(), which is > just a wrapper around get_random_u32(). > ... > diff --git a/net/802/garp.c b/net/802/garp.c > index f6012f8e59f0..c1bb67e25430 100644 > --- a/net/802/garp.c > +++ b/net/802/garp.c > @@ -407,7 +407,7 @@ static void garp_join_timer_arm(struct garp_applicant *app) > { > unsigned long delay; > > - delay = (u64)msecs_to_jiffies(garp_join_time) * prandom_u32() >> 32; > + delay = (u64)msecs_to_jiffies(garp_join_time) * get_random_u32() >> 32; > mod_timer(&app->join_timer, jiffies + delay); > } > > diff --git a/net/802/mrp.c b/net/802/mrp.c > index 35e04cc5390c..3e9fe9f5d9bf 100644 > --- a/net/802/mrp.c > +++ b/net/802/mrp.c > @@ -592,7 +592,7 @@ static void mrp_join_timer_arm(struct mrp_applicant *app) > { > unsigned long delay; > > - delay = (u64)msecs_to_jiffies(mrp_join_time) * prandom_u32() >> 32; > + delay = (u64)msecs_to_jiffies(mrp_join_time) * get_random_u32() >> 32; > mod_timer(&app->join_timer, jiffies + delay); > } > Aren't those: delay = prandom_u32_max(msecs_to_jiffies(xxx_join_time)); David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
On Sat, Oct 08, 2022 at 10:18:45PM +0000, David Laight wrote: > From: Jason A. Donenfeld > > Sent: 07 October 2022 19:01 > > > > The prandom_u32() function has been a deprecated inline wrapper around > > get_random_u32() for several releases now, and compiles down to the > > exact same code. Replace the deprecated wrapper with a direct call to > > the real function. The same also applies to get_random_int(), which is > > just a wrapper around get_random_u32(). > > > ... > > diff --git a/net/802/garp.c b/net/802/garp.c > > index f6012f8e59f0..c1bb67e25430 100644 > > --- a/net/802/garp.c > > +++ b/net/802/garp.c > > @@ -407,7 +407,7 @@ static void garp_join_timer_arm(struct garp_applicant *app) > > { > > unsigned long delay; > > > > - delay = (u64)msecs_to_jiffies(garp_join_time) * prandom_u32() >> 32; > > + delay = (u64)msecs_to_jiffies(garp_join_time) * get_random_u32() >> 32; > > mod_timer(&app->join_timer, jiffies + delay); > > } > > > > diff --git a/net/802/mrp.c b/net/802/mrp.c > > index 35e04cc5390c..3e9fe9f5d9bf 100644 > > --- a/net/802/mrp.c > > +++ b/net/802/mrp.c > > @@ -592,7 +592,7 @@ static void mrp_join_timer_arm(struct mrp_applicant *app) > > { > > unsigned long delay; > > > > - delay = (u64)msecs_to_jiffies(mrp_join_time) * prandom_u32() >> 32; > > + delay = (u64)msecs_to_jiffies(mrp_join_time) * get_random_u32() >> 32; > > mod_timer(&app->join_timer, jiffies + delay); > > } > > > > Aren't those: > delay = prandom_u32_max(msecs_to_jiffies(xxx_join_time)); Probably, but too involved and peculiar for this cleanup. Feel free to send a particular patch to that maintainer. > > David > > - > Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK > Registration No: 1397386 (Wales)
On Sat, Oct 8, 2022 at 4:37 PM Jason A. Donenfeld <Jason@zx2c4.com> wrote: > > On Sat, Oct 08, 2022 at 10:18:45PM +0000, David Laight wrote: > > From: Jason A. Donenfeld > > > Sent: 07 October 2022 19:01 > > > > > > The prandom_u32() function has been a deprecated inline wrapper around > > > get_random_u32() for several releases now, and compiles down to the > > > exact same code. Replace the deprecated wrapper with a direct call to > > > the real function. The same also applies to get_random_int(), which is > > > just a wrapper around get_random_u32(). > > > > > ... > > > diff --git a/net/802/garp.c b/net/802/garp.c > > > index f6012f8e59f0..c1bb67e25430 100644 > > > --- a/net/802/garp.c > > > +++ b/net/802/garp.c > > > @@ -407,7 +407,7 @@ static void garp_join_timer_arm(struct garp_applicant *app) > > > { > > > unsigned long delay; > > > > > > - delay = (u64)msecs_to_jiffies(garp_join_time) * prandom_u32() >> 32; > > > + delay = (u64)msecs_to_jiffies(garp_join_time) * get_random_u32() >> 32; > > > mod_timer(&app->join_timer, jiffies + delay); > > > } > > > > > > diff --git a/net/802/mrp.c b/net/802/mrp.c > > > index 35e04cc5390c..3e9fe9f5d9bf 100644 > > > --- a/net/802/mrp.c > > > +++ b/net/802/mrp.c > > > @@ -592,7 +592,7 @@ static void mrp_join_timer_arm(struct mrp_applicant *app) > > > { > > > unsigned long delay; > > > > > > - delay = (u64)msecs_to_jiffies(mrp_join_time) * prandom_u32() >> 32; > > > + delay = (u64)msecs_to_jiffies(mrp_join_time) * get_random_u32() >> 32; > > > mod_timer(&app->join_timer, jiffies + delay); > > > } > > > > > > > Aren't those: > > delay = prandom_u32_max(msecs_to_jiffies(xxx_join_time)); > > Probably, but too involved and peculiar for this cleanup. > > Feel free to send a particular patch to that maintainer. I guess the cocci patch looks like this, so maybe I'll put that in 1/7 if I respin this. @@ expression E; identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32"; typedef u64; @@ - ((u64)(E) * get_random_u32() >> 32) + prandom_u32_max(E)
diff --git a/Documentation/networking/filter.rst b/Documentation/networking/filter.rst index 43cdc4d34745..f69da5074860 100644 --- a/Documentation/networking/filter.rst +++ b/Documentation/networking/filter.rst @@ -305,7 +305,7 @@ Possible BPF extensions are shown in the following table: vlan_tci skb_vlan_tag_get(skb) vlan_avail skb_vlan_tag_present(skb) vlan_tpid skb->vlan_proto - rand prandom_u32() + rand get_random_u32() =================================== ================================================= These extensions can also be prefixed with '#'. diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 7c37e09c92da..18c4f0e3e906 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -288,7 +288,7 @@ __get_wchan(struct task_struct *p) static inline unsigned long brk_rnd(void) { - return (get_random_int() & BRK_RND_MASK) << PAGE_SHIFT; + return (get_random_u32() & BRK_RND_MASK) << PAGE_SHIFT; } unsigned long arch_randomize_brk(struct mm_struct *mm) diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index 2b34294517a1..848b0702005d 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -239,14 +239,14 @@ static unsigned long mmap_rnd(void) unsigned long rnd = 0; if (current->flags & PF_RANDOMIZE) - rnd = get_random_int() & MMAP_RND_MASK; + rnd = get_random_u32() & MMAP_RND_MASK; return rnd << PAGE_SHIFT; } unsigned long arch_mmap_rnd(void) { - return (get_random_int() & MMAP_RND_MASK) << PAGE_SHIFT; + return (get_random_u32() & MMAP_RND_MASK) << PAGE_SHIFT; } static unsigned long mmap_legacy_base(void) diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c index 5980ce348832..3327c47bc181 100644 --- a/arch/s390/mm/mmap.c +++ b/arch/s390/mm/mmap.c @@ -37,7 +37,7 @@ static inline int mmap_is_legacy(struct rlimit *rlim_stack) unsigned long arch_mmap_rnd(void) { - return (get_random_int() & MMAP_RND_MASK) << PAGE_SHIFT; + return (get_random_u32() & MMAP_RND_MASK) << PAGE_SHIFT; } static unsigned long mmap_base_legacy(unsigned long rnd) diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 48276c0e479d..860b60273df3 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -503,7 +503,7 @@ static void bsp_init_amd(struct cpuinfo_x86 *c) va_align.flags = ALIGN_VA_32 | ALIGN_VA_64; /* A random value per boot for bit slice [12:upper_bit) */ - va_align.bits = get_random_int() & va_align.mask; + va_align.bits = get_random_u32() & va_align.mask; } if (cpu_has(c, X86_FEATURE_MWAITX)) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 329ff75b80b9..7bd1861ddbdf 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -137,12 +137,12 @@ static u64 random_offset(u64 start, u64 end, u64 len, u64 align) range = round_down(end - len, align) - round_up(start, align); if (range) { if (sizeof(unsigned long) == sizeof(u64)) { - addr = get_random_long(); + addr = get_random_u64(); } else { - addr = get_random_int(); + addr = get_random_u32(); if (range > U32_MAX) { addr <<= 32; - addr |= get_random_int(); + addr |= get_random_u32(); } } div64_u64_rem(addr, range, &addr); diff --git a/drivers/gpu/drm/i915/selftests/i915_selftest.c b/drivers/gpu/drm/i915/selftests/i915_selftest.c index c4e932368b37..39da0fb0d6d2 100644 --- a/drivers/gpu/drm/i915/selftests/i915_selftest.c +++ b/drivers/gpu/drm/i915/selftests/i915_selftest.c @@ -135,7 +135,7 @@ static int __run_selftests(const char *name, int err = 0; while (!i915_selftest.random_seed) - i915_selftest.random_seed = get_random_int(); + i915_selftest.random_seed = get_random_u32(); i915_selftest.timeout_jiffies = i915_selftest.timeout_ms ? diff --git a/drivers/gpu/drm/selftests/test-drm_buddy.c b/drivers/gpu/drm/selftests/test-drm_buddy.c index aca0c491040f..6340a711773f 100644 --- a/drivers/gpu/drm/selftests/test-drm_buddy.c +++ b/drivers/gpu/drm/selftests/test-drm_buddy.c @@ -974,7 +974,7 @@ static int __init test_drm_buddy_init(void) int err; while (!random_seed) - random_seed = get_random_int(); + random_seed = get_random_u32(); pr_info("Testing DRM buddy manager (struct drm_buddy), with random_seed=0x%x\n", random_seed); diff --git a/drivers/gpu/drm/selftests/test-drm_mm.c b/drivers/gpu/drm/selftests/test-drm_mm.c index b768b53c4aee..1dc41d73d17e 100644 --- a/drivers/gpu/drm/selftests/test-drm_mm.c +++ b/drivers/gpu/drm/selftests/test-drm_mm.c @@ -2463,7 +2463,7 @@ static int __init test_drm_mm_init(void) int err; while (!random_seed) - random_seed = get_random_int(); + random_seed = get_random_u32(); pr_info("Testing DRM range manager (struct drm_mm), with random_seed=0x%x max_iterations=%u max_prime=%u\n", random_seed, max_iterations, max_prime); diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index 14392c942f49..499a425a3379 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -734,7 +734,7 @@ static int send_connect(struct c4iw_ep *ep) &ep->com.remote_addr; int ret; enum chip_type adapter_type = ep->com.dev->rdev.lldi.adapter_type; - u32 isn = (prandom_u32() & ~7UL) - 1; + u32 isn = (get_random_u32() & ~7UL) - 1; struct net_device *netdev; u64 params; @@ -2469,7 +2469,7 @@ static int accept_cr(struct c4iw_ep *ep, struct sk_buff *skb, } if (!is_t4(adapter_type)) { - u32 isn = (prandom_u32() & ~7UL) - 1; + u32 isn = (get_random_u32() & ~7UL) - 1; skb = get_skb(skb, roundup(sizeof(*rpl5), 16), GFP_KERNEL); rpl5 = __skb_put_zero(skb, roundup(sizeof(*rpl5), 16)); diff --git a/drivers/infiniband/hw/hfi1/tid_rdma.c b/drivers/infiniband/hw/hfi1/tid_rdma.c index 2a7abf7a1f7f..18b05ffb415a 100644 --- a/drivers/infiniband/hw/hfi1/tid_rdma.c +++ b/drivers/infiniband/hw/hfi1/tid_rdma.c @@ -850,7 +850,7 @@ void hfi1_kern_init_ctxt_generations(struct hfi1_ctxtdata *rcd) int i; for (i = 0; i < RXE_NUM_TID_FLOWS; i++) { - rcd->flows[i].generation = mask_generation(prandom_u32()); + rcd->flows[i].generation = mask_generation(get_random_u32()); kern_set_hw_flow(rcd, KERN_GENERATION_RESERVED, i); } } diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c index d13ecbdd4391..a37cfac5e23f 100644 --- a/drivers/infiniband/hw/mlx4/mad.c +++ b/drivers/infiniband/hw/mlx4/mad.c @@ -96,7 +96,7 @@ static void __propagate_pkey_ev(struct mlx4_ib_dev *dev, int port_num, __be64 mlx4_ib_gen_node_guid(void) { #define NODE_GUID_HI ((u64) (((u64)IB_OPENIB_OUI) << 40)) - return cpu_to_be64(NODE_GUID_HI | prandom_u32()); + return cpu_to_be64(NODE_GUID_HI | get_random_u32()); } __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index fd9d7f2c4d64..a605cf66b83e 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -465,7 +465,7 @@ static int ipoib_cm_req_handler(struct ib_cm_id *cm_id, goto err_qp; } - psn = prandom_u32() & 0xffffff; + psn = get_random_u32() & 0xffffff; ret = ipoib_cm_modify_rx_qp(dev, cm_id, p->qp, psn); if (ret) goto err_modify; diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c index f4e1cc1ece43..5b0fc783bf01 100644 --- a/drivers/md/raid5-cache.c +++ b/drivers/md/raid5-cache.c @@ -2993,7 +2993,7 @@ static int r5l_load_log(struct r5l_log *log) } create: if (create_super) { - log->last_cp_seq = prandom_u32(); + log->last_cp_seq = get_random_u32(); cp = 0; r5l_log_write_empty_meta_block(log, cp, log->last_cp_seq); /* diff --git a/drivers/media/test-drivers/vivid/vivid-touch-cap.c b/drivers/media/test-drivers/vivid/vivid-touch-cap.c index 792660a85bc1..6cc32eb54f9d 100644 --- a/drivers/media/test-drivers/vivid/vivid-touch-cap.c +++ b/drivers/media/test-drivers/vivid/vivid-touch-cap.c @@ -210,7 +210,7 @@ static void vivid_fill_buff_noise(__s16 *tch_buf, int size) /* Fill 10% of the values within range -3 and 3, zero the others */ for (i = 0; i < size; i++) { - unsigned int rand = get_random_int(); + unsigned int rand = get_random_u32(); if (rand % 10) tch_buf[i] = 0; @@ -272,7 +272,7 @@ void vivid_fillbuff_tch(struct vivid_dev *dev, struct vivid_buffer *buf) return; if (test_pat_idx == 0) - dev->tch_pat_random = get_random_int(); + dev->tch_pat_random = get_random_u32(); rand = dev->tch_pat_random; switch (test_pattern) { diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanalabs/gaudi2/gaudi2.c index 98336a1a84b0..413b284bf224 100644 --- a/drivers/misc/habanalabs/gaudi2/gaudi2.c +++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c @@ -2917,7 +2917,7 @@ static void gaudi2_user_interrupt_setup(struct hl_device *hdev) static inline int gaudi2_get_non_zero_random_int(void) { - int rand = get_random_int(); + int rand = get_random_u32(); return rand ? rand : 1; } diff --git a/drivers/mtd/nand/raw/nandsim.c b/drivers/mtd/nand/raw/nandsim.c index 50bcf745e816..4bdaf4aa7007 100644 --- a/drivers/mtd/nand/raw/nandsim.c +++ b/drivers/mtd/nand/raw/nandsim.c @@ -1402,7 +1402,7 @@ static int ns_do_read_error(struct nandsim *ns, int num) static void ns_do_bit_flips(struct nandsim *ns, int num) { - if (bitflips && prandom_u32() < (1 << 22)) { + if (bitflips && get_random_u32() < (1 << 22)) { int flips = 1; if (bitflips > 1) flips = prandom_u32_max(bitflips) + 1; diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 86d42306aa5e..c8543394a3bb 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4806,7 +4806,7 @@ static u32 bond_rr_gen_slave_id(struct bonding *bond) switch (packets_per_slave) { case 0: - slave_id = prandom_u32(); + slave_id = get_random_u32(); break; case 1: slave_id = this_cpu_inc_return(*bond->rr_tx_counter); diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c index f597b313acaa..2198e35d9e18 100644 --- a/drivers/net/ethernet/broadcom/cnic.c +++ b/drivers/net/ethernet/broadcom/cnic.c @@ -4164,7 +4164,7 @@ static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev) { u32 seed; - seed = prandom_u32(); + seed = get_random_u32(); cnic_ctx_wr(dev, 45, 0, seed); return 0; } diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c index ac452a0111a9..b71ce6c5b512 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c @@ -1063,7 +1063,7 @@ static void chtls_pass_accept_rpl(struct sk_buff *skb, opt2 |= WND_SCALE_EN_V(WSCALE_OK(tp)); rpl5->opt0 = cpu_to_be64(opt0); rpl5->opt2 = cpu_to_be32(opt2); - rpl5->iss = cpu_to_be32((prandom_u32() & ~7UL) - 1); + rpl5->iss = cpu_to_be32((get_random_u32() & ~7UL) - 1); set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->port_id); t4_set_arp_err_handler(skb, sk, chtls_accept_rpl_arp_failure); cxgb4_l2t_send(csk->egress_dev, skb, csk->l2t_entry); diff --git a/drivers/net/ethernet/rocker/rocker_main.c b/drivers/net/ethernet/rocker/rocker_main.c index fc83ec23bd1d..8c3bbafabb07 100644 --- a/drivers/net/ethernet/rocker/rocker_main.c +++ b/drivers/net/ethernet/rocker/rocker_main.c @@ -129,7 +129,7 @@ static int rocker_reg_test(const struct rocker *rocker) u64 test_reg; u64 rnd; - rnd = prandom_u32(); + rnd = get_random_u32(); rnd >>= 1; rocker_write32(rocker, TEST_REG, rnd); test_reg = rocker_read32(rocker, TEST_REG); @@ -139,9 +139,9 @@ static int rocker_reg_test(const struct rocker *rocker) return -EIO; } - rnd = prandom_u32(); + rnd = get_random_u32(); rnd <<= 31; - rnd |= prandom_u32(); + rnd |= get_random_u32(); rocker_write64(rocker, TEST_REG64, rnd); test_reg = rocker_read64(rocker, TEST_REG64); if (test_reg != rnd * 2) { diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c index fabfbb0b40b0..374e1cc07a63 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c @@ -177,7 +177,7 @@ static int brcmf_pno_set_random(struct brcmf_if *ifp, struct brcmf_pno_info *pi) memcpy(pfn_mac.mac, mac_addr, ETH_ALEN); for (i = 0; i < ETH_ALEN; i++) { pfn_mac.mac[i] &= mac_mask[i]; - pfn_mac.mac[i] |= get_random_int() & ~(mac_mask[i]); + pfn_mac.mac[i] |= get_random_u32() & ~(mac_mask[i]); } /* Clear multi bit */ pfn_mac.mac[0] &= 0xFE; diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c index 134114ac1ac0..4fbb5c876b12 100644 --- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c +++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c @@ -238,7 +238,7 @@ mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, tx_info->pkt_len = pkt_len; mwifiex_form_mgmt_frame(skb, buf, len); - *cookie = prandom_u32() | 1; + *cookie = get_random_u32() | 1; if (ieee80211_is_action(mgmt->frame_control)) skb = mwifiex_clone_skb_for_tx_status(priv, @@ -302,7 +302,7 @@ mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy, duration); if (!ret) { - *cookie = prandom_u32() | 1; + *cookie = get_random_u32() | 1; priv->roc_cfg.cookie = *cookie; priv->roc_cfg.chan = *chan; diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c index 3ac373d29d93..84b9d3454e57 100644 --- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c +++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c @@ -1159,7 +1159,7 @@ static int mgmt_tx(struct wiphy *wiphy, const u8 *vendor_ie; int ret = 0; - *cookie = prandom_u32(); + *cookie = get_random_u32(); priv->tx_cookie = *cookie; mgmt = (const struct ieee80211_mgmt *)buf; diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c index 1593e810b3ca..9c5416141d3c 100644 --- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c +++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c @@ -449,7 +449,7 @@ qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, { struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; - u32 short_cookie = prandom_u32(); + u32 short_cookie = get_random_u32(); u16 flags = 0; u16 freq; diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c index 3e3922d4c788..28c0f06e311f 100644 --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -6100,7 +6100,7 @@ static int wl1271_register_hw(struct wl1271 *wl) wl1271_warning("Fuse mac address is zero. using random mac"); /* Use TI oui and a random nic */ oui_addr = WLCORE_TI_OUI_ADDRESS; - nic_addr = get_random_int(); + nic_addr = get_random_u32(); } else { oui_addr = wl->fuse_oui_addr; /* fuse has the BD_ADDR, the WLAN addresses are the next two */ diff --git a/drivers/nvme/common/auth.c b/drivers/nvme/common/auth.c index 04bd28f17dcc..d90e4f0c08b7 100644 --- a/drivers/nvme/common/auth.c +++ b/drivers/nvme/common/auth.c @@ -23,7 +23,7 @@ u32 nvme_auth_get_seqnum(void) mutex_lock(&nvme_dhchap_mutex); if (!nvme_dhchap_seqnum) - nvme_dhchap_seqnum = prandom_u32(); + nvme_dhchap_seqnum = get_random_u32(); else { nvme_dhchap_seqnum++; if (!nvme_dhchap_seqnum) diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c index 53d91bf9c12a..c07d2e3b4bcf 100644 --- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c +++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c @@ -254,7 +254,7 @@ static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb, } else if (is_t5(lldi->adapter_type)) { struct cpl_t5_act_open_req *req = (struct cpl_t5_act_open_req *)skb->head; - u32 isn = (prandom_u32() & ~7UL) - 1; + u32 isn = (get_random_u32() & ~7UL) - 1; INIT_TP_WR(req, 0); OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, @@ -282,7 +282,7 @@ static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb, } else { struct cpl_t6_act_open_req *req = (struct cpl_t6_act_open_req *)skb->head; - u32 isn = (prandom_u32() & ~7UL) - 1; + u32 isn = (get_random_u32() & ~7UL) - 1; INIT_TP_WR(req, 0); OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, diff --git a/drivers/target/iscsi/cxgbit/cxgbit_cm.c b/drivers/target/iscsi/cxgbit/cxgbit_cm.c index 3336d2b78bf7..d9204c590d9a 100644 --- a/drivers/target/iscsi/cxgbit/cxgbit_cm.c +++ b/drivers/target/iscsi/cxgbit/cxgbit_cm.c @@ -1202,7 +1202,7 @@ cxgbit_pass_accept_rpl(struct cxgbit_sock *csk, struct cpl_pass_accept_req *req) opt2 |= CONG_CNTRL_V(CONG_ALG_NEWRENO); opt2 |= T5_ISS_F; - rpl5->iss = cpu_to_be32((prandom_u32() & ~7UL) - 1); + rpl5->iss = cpu_to_be32((get_random_u32() & ~7UL) - 1); opt2 |= T5_OPT_2_VALID_F; diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c index c31c0d94d8b3..76075e29696c 100644 --- a/drivers/thunderbolt/xdomain.c +++ b/drivers/thunderbolt/xdomain.c @@ -2438,7 +2438,7 @@ int tb_xdomain_init(void) tb_property_add_immediate(xdomain_property_dir, "deviceid", 0x1); tb_property_add_immediate(xdomain_property_dir, "devicerv", 0x80000100); - xdomain_property_block_gen = prandom_u32(); + xdomain_property_block_gen = get_random_u32(); return 0; } diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c index 4df6772802d7..285b83c20326 100644 --- a/drivers/video/fbdev/uvesafb.c +++ b/drivers/video/fbdev/uvesafb.c @@ -167,7 +167,7 @@ static int uvesafb_exec(struct uvesafb_ktask *task) memcpy(&m->id, &uvesafb_cn_id, sizeof(m->id)); m->seq = seq; m->len = len; - m->ack = prandom_u32(); + m->ack = get_random_u32(); /* uvesafb_task structure */ memcpy(m + 1, &task->t, sizeof(task->t)); diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c index a795437b86d0..5590a1e83126 100644 --- a/fs/exfat/inode.c +++ b/fs/exfat/inode.c @@ -552,7 +552,7 @@ static int exfat_fill_inode(struct inode *inode, struct exfat_dir_entry *info) inode->i_uid = sbi->options.fs_uid; inode->i_gid = sbi->options.fs_gid; inode_inc_iversion(inode); - inode->i_generation = prandom_u32(); + inode->i_generation = get_random_u32(); if (info->attr & ATTR_SUBDIR) { /* directory */ inode->i_generation &= ~1; diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 36d5bc595cc2..3956e24fa6e9 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -1279,7 +1279,7 @@ struct inode *__ext4_new_inode(struct user_namespace *mnt_userns, EXT4_GROUP_INFO_IBITMAP_CORRUPT); goto out; } - inode->i_generation = prandom_u32(); + inode->i_generation = get_random_u32(); /* Precompute checksum seed for inode metadata */ if (ext4_has_metadata_csum(sb)) { diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 3cf3ec4b1c21..99df5b8ae149 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -453,8 +453,8 @@ static long swap_inode_boot_loader(struct super_block *sb, inode->i_ctime = inode_bl->i_ctime = current_time(inode); - inode->i_generation = prandom_u32(); - inode_bl->i_generation = prandom_u32(); + inode->i_generation = get_random_u32(); + inode_bl->i_generation = get_random_u32(); ext4_reset_inode_seed(inode); ext4_reset_inode_seed(inode_bl); diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c index 9af68a7ecdcf..588cb09c5291 100644 --- a/fs/ext4/mmp.c +++ b/fs/ext4/mmp.c @@ -265,7 +265,7 @@ static unsigned int mmp_new_seq(void) u32 new_seq; do { - new_seq = prandom_u32(); + new_seq = get_random_u32(); } while (new_seq > EXT4_MMP_SEQ_MAX); return new_seq; diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c index bf00d5057abb..939536982c3e 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -50,7 +50,7 @@ static struct inode *f2fs_new_inode(struct user_namespace *mnt_userns, inode->i_blocks = 0; inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode); F2FS_I(inode)->i_crtime = inode->i_mtime; - inode->i_generation = prandom_u32(); + inode->i_generation = get_random_u32(); if (S_ISDIR(inode->i_mode)) F2FS_I(inode)->i_current_depth = 1; diff --git a/fs/fat/inode.c b/fs/fat/inode.c index a38238d75c08..1cbcc4608dc7 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -523,7 +523,7 @@ int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de) inode->i_uid = sbi->options.fs_uid; inode->i_gid = sbi->options.fs_gid; inode_inc_iversion(inode); - inode->i_generation = prandom_u32(); + inode->i_generation = get_random_u32(); if ((de->attr & ATTR_DIR) && !IS_FREE(de->name)) { inode->i_generation &= ~1; diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index c5d199d7e6b4..e10c16cd7881 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -4346,8 +4346,8 @@ void nfsd4_init_leases_net(struct nfsd_net *nn) nn->nfsd4_grace = 90; nn->somebody_reclaimed = false; nn->track_reclaim_completes = false; - nn->clverifier_counter = prandom_u32(); - nn->clientid_base = prandom_u32(); + nn->clverifier_counter = get_random_u32(); + nn->clientid_base = get_random_u32(); nn->clientid_counter = nn->clientid_base + 1; nn->s2s_cp_cl_id = nn->clientid_counter++; diff --git a/fs/ntfs3/fslog.c b/fs/ntfs3/fslog.c index e7c494005122..0d611a6c5511 100644 --- a/fs/ntfs3/fslog.c +++ b/fs/ntfs3/fslog.c @@ -3819,7 +3819,7 @@ int log_replay(struct ntfs_inode *ni, bool *initialized) } log_init_pg_hdr(log, page_size, page_size, 1, 1); - log_create(log, l_size, 0, get_random_int(), false, false); + log_create(log, l_size, 0, get_random_u32(), false, false); log->ra = ra; @@ -3893,7 +3893,7 @@ int log_replay(struct ntfs_inode *ni, bool *initialized) /* Do some checks based on whether we have a valid log page. */ if (!rst_info.valid_page) { - open_log_count = get_random_int(); + open_log_count = get_random_u32(); goto init_log_instance; } open_log_count = le32_to_cpu(ra2->open_log_count); @@ -4044,7 +4044,7 @@ int log_replay(struct ntfs_inode *ni, bool *initialized) memcpy(ra->clients, Add2Ptr(ra2, t16), le16_to_cpu(ra2->ra_len) - t16); - log->current_openlog_count = get_random_int(); + log->current_openlog_count = get_random_u32(); ra->open_log_count = cpu_to_le32(log->current_openlog_count); log->ra_size = offsetof(struct RESTART_AREA, clients) + sizeof(struct CLIENT_REC); diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c index 75dab0ae3939..4619652046cf 100644 --- a/fs/ubifs/journal.c +++ b/fs/ubifs/journal.c @@ -503,7 +503,7 @@ static void mark_inode_clean(struct ubifs_info *c, struct ubifs_inode *ui) static void set_dent_cookie(struct ubifs_info *c, struct ubifs_dent_node *dent) { if (c->double_hash) - dent->cookie = (__force __le32) prandom_u32(); + dent->cookie = (__force __le32) get_random_u32(); else dent->cookie = 0; } diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index 7838b31126e2..94db50eb706a 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -805,7 +805,7 @@ xfs_ialloc_ag_alloc( * number from being easily guessable. */ error = xfs_ialloc_inode_init(args.mp, tp, NULL, newlen, pag->pag_agno, - args.agbno, args.len, prandom_u32()); + args.agbno, args.len, get_random_u32()); if (error) return error; diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c index 2bbe7916a998..eae7427062cf 100644 --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -596,7 +596,7 @@ xfs_iget_cache_miss( */ if (xfs_has_v3inodes(mp) && (flags & XFS_IGET_CREATE) && !xfs_has_ikeep(mp)) { - VFS_I(ip)->i_generation = prandom_u32(); + VFS_I(ip)->i_generation = get_random_u32(); } else { struct xfs_buf *bp; diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 386b0307aed8..ad8652cbf245 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -3544,7 +3544,7 @@ xlog_ticket_alloc( tic->t_curr_res = unit_res; tic->t_cnt = cnt; tic->t_ocnt = cnt; - tic->t_tid = prandom_u32(); + tic->t_tid = get_random_u32(); if (permanent) tic->t_flags |= XLOG_TIC_PERM_RESERV; diff --git a/include/net/netfilter/nf_queue.h b/include/net/netfilter/nf_queue.h index 980daa6e1e3a..c81021ab07aa 100644 --- a/include/net/netfilter/nf_queue.h +++ b/include/net/netfilter/nf_queue.h @@ -43,7 +43,7 @@ void nf_queue_entry_free(struct nf_queue_entry *entry); static inline void init_hashrandom(u32 *jhash_initval) { while (*jhash_initval == 0) - *jhash_initval = prandom_u32(); + *jhash_initval = get_random_u32(); } static inline u32 hash_v4(const struct iphdr *iph, u32 initval) diff --git a/include/net/red.h b/include/net/red.h index be11dbd26492..56d0647d7356 100644 --- a/include/net/red.h +++ b/include/net/red.h @@ -364,7 +364,7 @@ static inline unsigned long red_calc_qavg(const struct red_parms *p, static inline u32 red_random(const struct red_parms *p) { - return reciprocal_divide(prandom_u32(), p->max_P_reciprocal); + return reciprocal_divide(get_random_u32(), p->max_P_reciprocal); } static inline int red_mark_probability(const struct red_parms *p, diff --git a/include/net/sock.h b/include/net/sock.h index d08cfe190a78..ca2b26686677 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2091,7 +2091,7 @@ static inline kuid_t sock_net_uid(const struct net *net, const struct sock *sk) static inline u32 net_tx_rndhash(void) { - u32 v = prandom_u32(); + u32 v = get_random_u32(); return v ?: 1; } diff --git a/kernel/bpf/bloom_filter.c b/kernel/bpf/bloom_filter.c index b9ea539a5561..48ee750849f2 100644 --- a/kernel/bpf/bloom_filter.c +++ b/kernel/bpf/bloom_filter.c @@ -158,7 +158,7 @@ static struct bpf_map *bloom_map_alloc(union bpf_attr *attr) attr->value_size / sizeof(u32); if (!(attr->map_flags & BPF_F_ZERO_SEED)) - bloom->hash_seed = get_random_int(); + bloom->hash_seed = get_random_u32(); return &bloom->map; } diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index ade6b03b1d9b..f6b3486f001a 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -1211,7 +1211,7 @@ static int bpf_jit_blind_insn(const struct bpf_insn *from, bool emit_zext) { struct bpf_insn *to = to_buff; - u32 imm_rnd = get_random_int(); + u32 imm_rnd = get_random_u32(); s16 off; BUILD_BUG_ON(BPF_REG_AX + 1 != MAX_BPF_JIT_REG); diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c index 6c530a5e560a..1d36173598a0 100644 --- a/kernel/bpf/hashtab.c +++ b/kernel/bpf/hashtab.c @@ -546,7 +546,7 @@ static struct bpf_map *htab_map_alloc(union bpf_attr *attr) if (htab->map.map_flags & BPF_F_ZERO_SEED) htab->hashrnd = 0; else - htab->hashrnd = get_random_int(); + htab->hashrnd = get_random_u32(); htab_init_buckets(htab); diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 3eadb14e090b..943af5abdc18 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -13317,7 +13317,7 @@ static int opt_subreg_zext_lo32_rnd_hi32(struct bpf_verifier_env *env, aux[adj_idx].ptr_type == PTR_TO_CTX) continue; - imm_rnd = get_random_int(); + imm_rnd = get_random_u32(); rnd_hi32_patch[0] = insn; rnd_hi32_patch[1].imm = imm_rnd; rnd_hi32_patch[3].dst_reg = load_reg; diff --git a/kernel/kcsan/selftest.c b/kernel/kcsan/selftest.c index 75712959c84e..58b94deae5c0 100644 --- a/kernel/kcsan/selftest.c +++ b/kernel/kcsan/selftest.c @@ -26,7 +26,7 @@ static bool __init test_requires(void) { /* random should be initialized for the below tests */ - return prandom_u32() + prandom_u32() != 0; + return get_random_u32() + get_random_u32() != 0; } /* diff --git a/lib/random32.c b/lib/random32.c index d5d9029362cb..d4f19e1a69d4 100644 --- a/lib/random32.c +++ b/lib/random32.c @@ -47,7 +47,7 @@ * @state: pointer to state structure holding seeded state. * * This is used for pseudo-randomness with no outside seeding. - * For more random results, use prandom_u32(). + * For more random results, use get_random_u32(). */ u32 prandom_u32_state(struct rnd_state *state) { diff --git a/lib/reed_solomon/test_rslib.c b/lib/reed_solomon/test_rslib.c index 4d241bdc88aa..848e7eb5da92 100644 --- a/lib/reed_solomon/test_rslib.c +++ b/lib/reed_solomon/test_rslib.c @@ -164,7 +164,7 @@ static int get_rcw_we(struct rs_control *rs, struct wspace *ws, /* Load c with random data and encode */ for (i = 0; i < dlen; i++) - c[i] = prandom_u32() & nn; + c[i] = get_random_u32() & nn; memset(c + dlen, 0, nroots * sizeof(*c)); encode_rs16(rs, c, dlen, c + dlen, 0); @@ -178,7 +178,7 @@ static int get_rcw_we(struct rs_control *rs, struct wspace *ws, for (i = 0; i < errs; i++) { do { /* Error value must be nonzero */ - errval = prandom_u32() & nn; + errval = get_random_u32() & nn; } while (errval == 0); do { @@ -206,7 +206,7 @@ static int get_rcw_we(struct rs_control *rs, struct wspace *ws, /* Erasure with corrupted symbol */ do { /* Error value must be nonzero */ - errval = prandom_u32() & nn; + errval = get_random_u32() & nn; } while (errval == 0); errlocs[errloc] = 1; diff --git a/lib/test_fprobe.c b/lib/test_fprobe.c index ed70637a2ffa..e0381b3ec410 100644 --- a/lib/test_fprobe.c +++ b/lib/test_fprobe.c @@ -145,7 +145,7 @@ static unsigned long get_ftrace_location(void *func) static int fprobe_test_init(struct kunit *test) { do { - rand1 = prandom_u32(); + rand1 = get_random_u32(); } while (rand1 <= div_factor); target = fprobe_selftest_target; diff --git a/lib/test_kprobes.c b/lib/test_kprobes.c index a5edc2ebc947..eeb1d728d974 100644 --- a/lib/test_kprobes.c +++ b/lib/test_kprobes.c @@ -341,7 +341,7 @@ static int kprobes_test_init(struct kunit *test) stacktrace_driver = kprobe_stacktrace_driver; do { - rand1 = prandom_u32(); + rand1 = get_random_u32(); } while (rand1 <= div_factor); return 0; } diff --git a/lib/test_min_heap.c b/lib/test_min_heap.c index d19c8080fd4d..7b01b4387cfb 100644 --- a/lib/test_min_heap.c +++ b/lib/test_min_heap.c @@ -83,7 +83,7 @@ static __init int test_heapify_all(bool min_heap) /* Test with randomly generated values. */ heap.nr = ARRAY_SIZE(values); for (i = 0; i < heap.nr; i++) - values[i] = get_random_int(); + values[i] = get_random_u32(); min_heapify_all(&heap, &funcs); err += pop_verify_heap(min_heap, &heap, &funcs); @@ -116,7 +116,7 @@ static __init int test_heap_push(bool min_heap) /* Test with randomly generated values. */ while (heap.nr < heap.size) { - temp = get_random_int(); + temp = get_random_u32(); min_heap_push(&heap, &temp, &funcs); } err += pop_verify_heap(min_heap, &heap, &funcs); @@ -158,7 +158,7 @@ static __init int test_heap_pop_push(bool min_heap) /* Test with randomly generated values. */ for (i = 0; i < ARRAY_SIZE(data); i++) { - temp = get_random_int(); + temp = get_random_u32(); min_heap_pop_push(&heap, &temp, &funcs); } err += pop_verify_heap(min_heap, &heap, &funcs); diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c index 5a1dd4736b56..b358a74ed7ed 100644 --- a/lib/test_rhashtable.c +++ b/lib/test_rhashtable.c @@ -291,7 +291,7 @@ static int __init test_rhltable(unsigned int entries) if (WARN_ON(err)) goto out_free; - k = prandom_u32(); + k = get_random_u32(); ret = 0; for (i = 0; i < entries; i++) { rhl_test_objects[i].value.id = k; @@ -369,12 +369,12 @@ static int __init test_rhltable(unsigned int entries) pr_info("test %d random rhlist add/delete operations\n", entries); for (j = 0; j < entries; j++) { u32 i = prandom_u32_max(entries); - u32 prand = prandom_u32(); + u32 prand = get_random_u32(); cond_resched(); if (prand == 0) - prand = prandom_u32(); + prand = get_random_u32(); if (prand & 1) { prand >>= 1; diff --git a/mm/shmem.c b/mm/shmem.c index 42e5888bf84d..6f2cef73808d 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2330,7 +2330,7 @@ static struct inode *shmem_get_inode(struct super_block *sb, struct inode *dir, inode_init_owner(&init_user_ns, inode, dir, mode); inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode); - inode->i_generation = prandom_u32(); + inode->i_generation = get_random_u32(); info = SHMEM_I(inode); memset(info, 0, (char *)inode - (char *)info); spin_lock_init(&info->lock); diff --git a/mm/slab.c b/mm/slab.c index 10e96137b44f..36ed7182bad5 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -2380,7 +2380,7 @@ static bool freelist_state_initialize(union freelist_init_state *state, unsigned int rand; /* Use best entropy available to define a random shift */ - rand = get_random_int(); + rand = get_random_u32(); /* Use a random state if the pre-computed list is not available */ if (!cachep->random_seq) { diff --git a/net/802/garp.c b/net/802/garp.c index f6012f8e59f0..c1bb67e25430 100644 --- a/net/802/garp.c +++ b/net/802/garp.c @@ -407,7 +407,7 @@ static void garp_join_timer_arm(struct garp_applicant *app) { unsigned long delay; - delay = (u64)msecs_to_jiffies(garp_join_time) * prandom_u32() >> 32; + delay = (u64)msecs_to_jiffies(garp_join_time) * get_random_u32() >> 32; mod_timer(&app->join_timer, jiffies + delay); } diff --git a/net/802/mrp.c b/net/802/mrp.c index 35e04cc5390c..3e9fe9f5d9bf 100644 --- a/net/802/mrp.c +++ b/net/802/mrp.c @@ -592,7 +592,7 @@ static void mrp_join_timer_arm(struct mrp_applicant *app) { unsigned long delay; - delay = (u64)msecs_to_jiffies(mrp_join_time) * prandom_u32() >> 32; + delay = (u64)msecs_to_jiffies(mrp_join_time) * get_random_u32() >> 32; mod_timer(&app->join_timer, jiffies + delay); } diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 5ca4f953034c..c3763056c554 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -2464,7 +2464,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev) for (i = 0; i < pkt_dev->nr_labels; i++) if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) pkt_dev->labels[i] = MPLS_STACK_BOTTOM | - ((__force __be32)prandom_u32() & + ((__force __be32)get_random_u32() & htonl(0x000fffff)); } @@ -2568,7 +2568,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev) for (i = 0; i < 4; i++) { pkt_dev->cur_in6_daddr.s6_addr32[i] = - (((__force __be32)prandom_u32() | + (((__force __be32)get_random_u32() | pkt_dev->min_in6_daddr.s6_addr32[i]) & pkt_dev->max_in6_daddr.s6_addr32[i]); } diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 795cbe1de912..1a37a07c7163 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -3664,7 +3664,7 @@ static __net_init int rt_genid_init(struct net *net) { atomic_set(&net->ipv4.rt_genid, 0); atomic_set(&net->fnhe_genid, 0); - atomic_set(&net->ipv4.dev_addr_genid, get_random_int()); + atomic_set(&net->ipv4.dev_addr_genid, get_random_u32()); return 0; } diff --git a/net/ipv4/tcp_cdg.c b/net/ipv4/tcp_cdg.c index ddc7ba0554bd..efcd145f06db 100644 --- a/net/ipv4/tcp_cdg.c +++ b/net/ipv4/tcp_cdg.c @@ -243,7 +243,7 @@ static bool tcp_cdg_backoff(struct sock *sk, u32 grad) struct cdg *ca = inet_csk_ca(sk); struct tcp_sock *tp = tcp_sk(sk); - if (prandom_u32() <= nexp_u32(grad * backoff_factor)) + if (get_random_u32() <= nexp_u32(grad * backoff_factor)) return false; if (use_ineff) { diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 560d9eadeaa5..1a5b2464548e 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -246,7 +246,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, inet_get_local_port_range(net, &low, &high); remaining = (high - low) + 1; - rand = prandom_u32(); + rand = get_random_u32(); first = reciprocal_scale(rand, remaining) + low; /* * force rand to be an odd multiple of UDP_HTABLE_SIZE diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c index ceb85c67ce39..18481eb76a0a 100644 --- a/net/ipv6/ip6_flowlabel.c +++ b/net/ipv6/ip6_flowlabel.c @@ -220,7 +220,7 @@ static struct ip6_flowlabel *fl_intern(struct net *net, spin_lock_bh(&ip6_fl_lock); if (label == 0) { for (;;) { - fl->label = htonl(prandom_u32())&IPV6_FLOWLABEL_MASK; + fl->label = htonl(get_random_u32())&IPV6_FLOWLABEL_MASK; if (fl->label) { lfl = __fl_lookup(net, fl->label); if (!lfl) diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c index 2880dc7d9a49..2685c3f15e9d 100644 --- a/net/ipv6/output_core.c +++ b/net/ipv6/output_core.c @@ -18,7 +18,7 @@ static u32 __ipv6_select_ident(struct net *net, u32 id; do { - id = prandom_u32(); + id = get_random_u32(); } while (!id); return id; diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c index fb67f1ca2495..8c04bb57dd6f 100644 --- a/net/netfilter/ipvs/ip_vs_conn.c +++ b/net/netfilter/ipvs/ip_vs_conn.c @@ -1308,7 +1308,7 @@ void ip_vs_random_dropentry(struct netns_ipvs *ipvs) * Randomly scan 1/32 of the whole table every second */ for (idx = 0; idx < (ip_vs_conn_tab_size>>5); idx++) { - unsigned int hash = prandom_u32() & ip_vs_conn_tab_mask; + unsigned int hash = get_random_u32() & ip_vs_conn_tab_mask; hlist_for_each_entry_rcu(cp, &ip_vs_conn_tab[hash], c_list) { if (cp->ipvs != ipvs) diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c index 203e24ae472c..b26c1dcfc27b 100644 --- a/net/netfilter/xt_statistic.c +++ b/net/netfilter/xt_statistic.c @@ -34,7 +34,7 @@ statistic_mt(const struct sk_buff *skb, struct xt_action_param *par) switch (info->mode) { case XT_STATISTIC_MODE_RANDOM: - if ((prandom_u32() & 0x7FFFFFFF) < info->u.random.probability) + if ((get_random_u32() & 0x7FFFFFFF) < info->u.random.probability) ret = !ret; break; case XT_STATISTIC_MODE_NTH: diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c index 868db4669a29..ca3ebfdb3023 100644 --- a/net/openvswitch/actions.c +++ b/net/openvswitch/actions.c @@ -1033,7 +1033,7 @@ static int sample(struct datapath *dp, struct sk_buff *skb, actions = nla_next(sample_arg, &rem); if ((arg->probability != U32_MAX) && - (!arg->probability || prandom_u32() > arg->probability)) { + (!arg->probability || get_random_u32() > arg->probability)) { if (last) consume_skb(skb); return 0; diff --git a/net/rds/bind.c b/net/rds/bind.c index 5b5fb4ca8d3e..052776ddcc34 100644 --- a/net/rds/bind.c +++ b/net/rds/bind.c @@ -104,7 +104,7 @@ static int rds_add_bound(struct rds_sock *rs, const struct in6_addr *addr, return -EINVAL; last = rover; } else { - rover = max_t(u16, prandom_u32(), 2); + rover = max_t(u16, get_random_u32(), 2); last = rover - 1; } diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c index 637ef1757931..48e3e05228a1 100644 --- a/net/sched/sch_cake.c +++ b/net/sched/sch_cake.c @@ -573,7 +573,7 @@ static bool cobalt_should_drop(struct cobalt_vars *vars, /* Simple BLUE implementation. Lack of ECN is deliberate. */ if (vars->p_drop) - drop |= (prandom_u32() < vars->p_drop); + drop |= (get_random_u32() < vars->p_drop); /* Overload the drop_next field as an activity timeout */ if (!vars->count) diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c index 3ca320f1a031..88c1fa2e1d15 100644 --- a/net/sched/sch_netem.c +++ b/net/sched/sch_netem.c @@ -171,7 +171,7 @@ static inline struct netem_skb_cb *netem_skb_cb(struct sk_buff *skb) static void init_crandom(struct crndstate *state, unsigned long rho) { state->rho = rho; - state->last = prandom_u32(); + state->last = get_random_u32(); } /* get_crandom - correlated random number generator @@ -184,9 +184,9 @@ static u32 get_crandom(struct crndstate *state) unsigned long answer; if (!state || state->rho == 0) /* no correlation */ - return prandom_u32(); + return get_random_u32(); - value = prandom_u32(); + value = get_random_u32(); rho = (u64)state->rho + 1; answer = (value * ((1ull<<32) - rho) + state->last * rho) >> 32; state->last = answer; @@ -200,7 +200,7 @@ static u32 get_crandom(struct crndstate *state) static bool loss_4state(struct netem_sched_data *q) { struct clgstate *clg = &q->clg; - u32 rnd = prandom_u32(); + u32 rnd = get_random_u32(); /* * Makes a comparison between rnd and the transition @@ -268,15 +268,15 @@ static bool loss_gilb_ell(struct netem_sched_data *q) switch (clg->state) { case GOOD_STATE: - if (prandom_u32() < clg->a1) + if (get_random_u32() < clg->a1) clg->state = BAD_STATE; - if (prandom_u32() < clg->a4) + if (get_random_u32() < clg->a4) return true; break; case BAD_STATE: - if (prandom_u32() < clg->a2) + if (get_random_u32() < clg->a2) clg->state = GOOD_STATE; - if (prandom_u32() > clg->a3) + if (get_random_u32() > clg->a3) return true; } @@ -632,7 +632,7 @@ static void get_slot_next(struct netem_sched_data *q, u64 now) if (!q->slot_dist) next_delay = q->slot_config.min_delay + - (prandom_u32() * + (get_random_u32() * (q->slot_config.max_delay - q->slot_config.min_delay) >> 32); else diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c index 5f96e75f9eec..48337687848c 100644 --- a/net/sunrpc/auth_gss/gss_krb5_wrap.c +++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c @@ -130,8 +130,8 @@ gss_krb5_make_confounder(char *p, u32 conflen) /* initialize to random value */ if (i == 0) { - i = prandom_u32(); - i = (i << 32) | prandom_u32(); + i = get_random_u32(); + i = (i << 32) | get_random_u32(); } switch (conflen) { diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index f8fae7815649..9407007f47ae 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -1868,7 +1868,7 @@ xprt_alloc_xid(struct rpc_xprt *xprt) static void xprt_init_xid(struct rpc_xprt *xprt) { - xprt->xid = prandom_u32(); + xprt->xid = get_random_u32(); } static void diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index bf338b782fc4..35bd8132113f 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -1116,7 +1116,7 @@ static int unix_autobind(struct sock *sk) addr->name->sun_family = AF_UNIX; refcount_set(&addr->refcnt, 1); - ordernum = prandom_u32(); + ordernum = get_random_u32(); lastnum = ordernum & 0xFFFFF; retry: ordernum = (ordernum + 1) & 0xFFFFF;