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authorDave Airlie <airlied@redhat.com>2018-07-04 10:27:12 +1000
committerDave Airlie <airlied@redhat.com>2018-07-04 10:27:12 +1000
commitf29135ee4e0d4e01911ed569f731bfdb841cea6d (patch)
treee72d49a2f677dd069c3a673522cf785548148f71 /include/linux/compat.h
parenteab976693153b9854bfa83d131374748f6ca4280 (diff)
parent021c91791a5e7e85c567452f1be3e4c2c6cb6063 (diff)
Merge v4.18-rc3 into drm-next
Two requests have come in for a backmerge, and I've got some pull reqs on rc2, so this just makes sense. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/linux/compat.h')
-rw-r--r--include/linux/compat.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/compat.h b/include/linux/compat.h
index b1a5562b3215..c68acc47da57 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -72,6 +72,9 @@
*/
#ifndef COMPAT_SYSCALL_DEFINEx
#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \
+ __diag_push(); \
+ __diag_ignore(GCC, 8, "-Wattribute-alias", \
+ "Type aliasing is used to sanitize syscall arguments");\
asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
__attribute__((alias(__stringify(__se_compat_sys##name)))); \
@@ -80,8 +83,11 @@
asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
{ \
- return __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));\
+ long ret = __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));\
+ __MAP(x,__SC_TEST,__VA_ARGS__); \
+ return ret; \
} \
+ __diag_pop(); \
static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
#endif /* COMPAT_SYSCALL_DEFINEx */