| Message ID | 20220614115420.1964686-2-roberto.sassu@huawei.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | BPF |
| Headers | show |
| Series | bpf: Add bpf_verify_pkcs7_signature() helper | expand |
On Tue, Jun 14, 2022 at 4:54 AM Roberto Sassu <roberto.sassu@huawei.com> wrote: > > Export bpf_dynptr_get_size(), so that kernel code dealing with eBPF dynamic > pointers can obtain the real size of data carried by this data structure. > > Cc: Joanne Koong <joannelkoong@gmail.com> > Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> LGTM Acked-by: Joanne Koong <joannelkoong@gmail.com> > --- > include/linux/bpf.h | 1 + > kernel/bpf/helpers.c | 2 +- > 2 files changed, 2 insertions(+), 1 deletion(-) > > diff --git a/include/linux/bpf.h b/include/linux/bpf.h > index 8e6092d0ea95..6eb03a0c9687 100644 > --- a/include/linux/bpf.h > +++ b/include/linux/bpf.h > @@ -2420,5 +2420,6 @@ void bpf_dynptr_init(struct bpf_dynptr_kern *ptr, void *data, > enum bpf_dynptr_type type, u32 offset, u32 size); > void bpf_dynptr_set_null(struct bpf_dynptr_kern *ptr); > int bpf_dynptr_check_size(u32 size); > +u32 bpf_dynptr_get_size(struct bpf_dynptr_kern *ptr); > > #endif /* _LINUX_BPF_H */ > diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c > index 225806a02efb..29e1810afaf6 100644 > --- a/kernel/bpf/helpers.c > +++ b/kernel/bpf/helpers.c > @@ -1430,7 +1430,7 @@ static void bpf_dynptr_set_type(struct bpf_dynptr_kern *ptr, enum bpf_dynptr_typ > ptr->size |= type << DYNPTR_TYPE_SHIFT; > } > > -static u32 bpf_dynptr_get_size(struct bpf_dynptr_kern *ptr) > +u32 bpf_dynptr_get_size(struct bpf_dynptr_kern *ptr) > { > return ptr->size & DYNPTR_SIZE_MASK; > } > -- > 2.25.1 >
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 8e6092d0ea95..6eb03a0c9687 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -2420,5 +2420,6 @@ void bpf_dynptr_init(struct bpf_dynptr_kern *ptr, void *data, enum bpf_dynptr_type type, u32 offset, u32 size); void bpf_dynptr_set_null(struct bpf_dynptr_kern *ptr); int bpf_dynptr_check_size(u32 size); +u32 bpf_dynptr_get_size(struct bpf_dynptr_kern *ptr); #endif /* _LINUX_BPF_H */ diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index 225806a02efb..29e1810afaf6 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -1430,7 +1430,7 @@ static void bpf_dynptr_set_type(struct bpf_dynptr_kern *ptr, enum bpf_dynptr_typ ptr->size |= type << DYNPTR_TYPE_SHIFT; } -static u32 bpf_dynptr_get_size(struct bpf_dynptr_kern *ptr) +u32 bpf_dynptr_get_size(struct bpf_dynptr_kern *ptr) { return ptr->size & DYNPTR_SIZE_MASK; }
Export bpf_dynptr_get_size(), so that kernel code dealing with eBPF dynamic pointers can obtain the real size of data carried by this data structure. Cc: Joanne Koong <joannelkoong@gmail.com> Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> --- include/linux/bpf.h | 1 + kernel/bpf/helpers.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-)