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get rid of duplicate logics in __SC_....[1-6] definitions

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All those guys have the same form - "take a list of type/name pairs,
apply some macro to each of them".  Abstract that part away, convert
all __SC_FOO##x(__VA_ARGS__) to __MAP(x,__SC_FOO,__VA_ARGS__).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2013-01-21 15:03:44 -05:00
parent 6dbe51c251
commit 07fe6e00f6
2 changed files with 37 additions and 61 deletions
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18
include/linux/compat.h
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@@ -27,12 +27,6 @@
#define __SC_DELOUSE(t,v) ((t)(unsigned long)(v))
#endif
#define __SC_CCAST1(t1, a1) __SC_DELOUSE(t1,a1)
#define __SC_CCAST2(t2, a2, ...) __SC_DELOUSE(t2,a2), __SC_CCAST1(__VA_ARGS__)
#define __SC_CCAST3(t3, a3, ...) __SC_DELOUSE(t3,a3), __SC_CCAST2(__VA_ARGS__)
#define __SC_CCAST4(t4, a4, ...) __SC_DELOUSE(t4,a4), __SC_CCAST3(__VA_ARGS__)
#define __SC_CCAST5(t5, a5, ...) __SC_DELOUSE(t5,a5), __SC_CCAST4(__VA_ARGS__)
#define __SC_CCAST6(t6, a6, ...) __SC_DELOUSE(t6,a6), __SC_CCAST5(__VA_ARGS__)
#define COMPAT_SYSCALL_DEFINE1(name, ...) \
COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
#define COMPAT_SYSCALL_DEFINE2(name, ...) \
@@ -49,19 +43,19 @@
#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \
asmlinkage long compat_sys##name(__SC_DECL##x(__VA_ARGS__)); \
static inline long C_SYSC##name(__SC_DECL##x(__VA_ARGS__)); \
asmlinkage long compat_SyS##name(__SC_LONG##x(__VA_ARGS__)) \
asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\
{ \
return (long) C_SYSC##name(__SC_CCAST##x(__VA_ARGS__)); \
return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \
} \
SYSCALL_ALIAS(compat_sys##name, compat_SyS##name); \
static inline long C_SYSC##name(__SC_DECL##x(__VA_ARGS__))
static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
#else /* CONFIG_HAVE_SYSCALL_WRAPPERS */
#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \
asmlinkage long compat_sys##name(__SC_DECL##x(__VA_ARGS__))
asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
#endif /* CONFIG_HAVE_SYSCALL_WRAPPERS */