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authorThomas Gleixner <tglx@linutronix.de>2019-11-15 10:30:50 +0100
committerThomas Gleixner <tglx@linutronix.de>2019-11-15 10:30:50 +0100
commitac94be498f84f7327533b62faca4c3da64434904 (patch)
tree63893f37afb67cd400bf60ec16a35440d16f2a90 /include/uapi/linux/socket.h
parentx86/hyperv: Allow guests to enable InvariantTSC (diff)
parentMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm (diff)
Merge branch 'linus' into x86/hyperv
Pick up upstream fixes to avoid conflicts.
Diffstat (limited to 'include/uapi/linux/socket.h')
-rw-r--r--include/uapi/linux/socket.h19
1 files changed, 13 insertions, 6 deletions
diff --git a/include/uapi/linux/socket.h b/include/uapi/linux/socket.h
index 8eb96021709c..c3409c8ec0dd 100644
--- a/include/uapi/linux/socket.h
+++ b/include/uapi/linux/socket.h
@@ -6,17 +6,24 @@
* Desired design of maximum size and alignment (see RFC2553)
*/
#define _K_SS_MAXSIZE 128 /* Implementation specific max size */
-#define _K_SS_ALIGNSIZE (__alignof__ (struct sockaddr *))
- /* Implementation specific desired alignment */
typedef unsigned short __kernel_sa_family_t;
+/*
+ * The definition uses anonymous union and struct in order to control the
+ * default alignment.
+ */
struct __kernel_sockaddr_storage {
- __kernel_sa_family_t ss_family; /* address family */
- /* Following field(s) are implementation specific */
- char __data[_K_SS_MAXSIZE - sizeof(unsigned short)];
+ union {
+ struct {
+ __kernel_sa_family_t ss_family; /* address family */
+ /* Following field(s) are implementation specific */
+ char __data[_K_SS_MAXSIZE - sizeof(unsigned short)];
/* space to achieve desired size, */
/* _SS_MAXSIZE value minus size of ss_family */
-} __attribute__ ((aligned(_K_SS_ALIGNSIZE))); /* force desired alignment */
+ };
+ void *__align; /* implementation specific desired alignment */
+ };
+};
#endif /* _UAPI_LINUX_SOCKET_H */