@@ -29,21 +29,21 @@ struct compat_cmsghdr {
};
struct compat_rtentry {
- u32 rt_pad1;
- struct sockaddr rt_dst; /* target address */
- struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
- struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- u32 rt_pad3;
- unsigned char rt_tos;
- unsigned char rt_class;
- short rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
- compat_uptr_t rt_dev; /* forcing the device at add */
- u32 rt_mtu; /* per route MTU/Window */
- u32 rt_window; /* Window clamping */
- unsigned short rt_irtt; /* Initial RTT */
+ u32 rt_pad1;
+ struct sockaddr_legacy rt_dst; /* target address */
+ struct sockaddr_legacy rt_gateway; /* gateway addr (RTF_GATEWAY) */
+ struct sockaddr_legacy rt_genmask; /* target network mask (IP) */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
+ compat_uptr_t rt_dev; /* forcing the device at add */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
+ unsigned short rt_irtt; /* Initial RTT */
};
int __get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr *msg,
@@ -29,22 +29,22 @@
/* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */
struct rtentry {
- unsigned long rt_pad1;
- struct sockaddr rt_dst; /* target address */
- struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
- struct sockaddr rt_genmask; /* target network mask (IP) */
- unsigned short rt_flags;
- short rt_pad2;
- unsigned long rt_pad3;
- void *rt_pad4;
- short rt_metric; /* +1 for binary compatibility! */
- char __user *rt_dev; /* forcing the device at add */
- unsigned long rt_mtu; /* per route MTU/Window */
+ unsigned long rt_pad1;
+ struct __kernel_sockaddr_legacy rt_dst; /* target address */
+ struct __kernel_sockaddr_legacy rt_gateway; /* gateway addr (RTF_GATEWAY) */
+ struct __kernel_sockaddr_legacy rt_genmask; /* target network mask (IP) */
+ unsigned short rt_flags;
+ short rt_pad2;
+ unsigned long rt_pad3;
+ void *rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
+ char __user *rt_dev; /* forcing the device at add */
+ unsigned long rt_mtu; /* per route MTU/Window */
#ifndef __KERNEL__
-#define rt_mss rt_mtu /* Compatibility :-( */
+#define rt_mss rt_mtu /* Compatibility :-( */
#endif
- unsigned long rt_window; /* Window clamping */
- unsigned short rt_irtt; /* Initial RTT */
+ unsigned long rt_window; /* Window clamping */
+ unsigned short rt_irtt; /* Initial RTT */
};
@@ -1832,7 +1832,7 @@ static int atalk_compat_routing_ioctl(struct sock *sk, unsigned int cmd,
struct rtentry rt;
if (copy_from_user(&rt.rt_dst, &ur->rt_dst,
- 3 * sizeof(struct sockaddr)) ||
+ 3 * sizeof(struct sockaddr_legacy)) ||
get_user(rt.rt_flags, &ur->rt_flags) ||
get_user(rt.rt_metric, &ur->rt_metric) ||
get_user(rt.rt_mtu, &ur->rt_mtu) ||
@@ -1019,7 +1019,7 @@ static int inet_compat_routing_ioctl(struct sock *sk, unsigned int cmd,
struct rtentry rt;
if (copy_from_user(&rt.rt_dst, &ur->rt_dst,
- 3 * sizeof(struct sockaddr)) ||
+ 3 * sizeof(struct sockaddr_legacy)) ||
get_user(rt.rt_flags, &ur->rt_flags) ||
get_user(rt.rt_metric, &ur->rt_metric) ||
get_user(rt.rt_mtu, &ur->rt_mtu) ||
@@ -452,7 +452,7 @@ int fib_validate_source(struct sk_buff *skb, __be32 src, __be32 dst,
itag);
}
-static inline __be32 sk_extract_addr(struct sockaddr *addr)
+static inline __be32 sk_extract_addr(struct sockaddr_legacy *addr)
{
return ((struct sockaddr_in *) addr)->sin_addr.s_addr;
}
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are getting ready to enable it, globally. Address the following warnings by changing the type of the middle struct members in a couple of composite structs, which are currently causing trouble, from `struct sockaddr` to `struct __kernel_sockaddr_legacy` in UAPI, and `struct sockaddr_legacy` for the rest of the kernel code. include/uapi/linux/route.h:33:25: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] include/uapi/linux/route.h:34:25: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] include/uapi/linux/route.h:35:25: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end include/net/compat.h:34:25: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] include/net/compat.h:35:25: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] Also, update some related code, accordingly. Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> --- include/net/compat.h | 30 +++++++++++++++--------------- include/uapi/linux/route.h | 28 ++++++++++++++-------------- net/appletalk/ddp.c | 2 +- net/ipv4/af_inet.c | 2 +- net/ipv4/fib_frontend.c | 2 +- 5 files changed, 32 insertions(+), 32 deletions(-)