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authorAl Viro <viro@zeniv.linux.org.uk>2013-01-21 15:16:58 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2013-03-03 22:46:22 -0500
commit4a0fd5bf0fd0795af8f1be3b261f5cf146a4cb9b (patch)
tree8f8efa46a8e4e3fc1c3163f5021aff4f94aaa7fd /include/linux/syscalls.h
parent07fe6e00f6cca6fef85a14a1dc3ed4f2e35d3f0b (diff)
teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long
... and convert a bunch of SYSCALL_DEFINE ones to SYSCALL_DEFINE<n>, killing the boilerplate crap around them. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/syscalls.h')
-rw-r--r--include/linux/syscalls.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index f9411f0c1c80..3e07b92efbf6 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -96,9 +96,10 @@ struct sigaltstack;
#define __MAP(n,...) __MAP##n(__VA_ARGS__)
#define __SC_DECL(t, a) t a
-#define __SC_LONG(t, a) long a
+#define __TYPE_IS_LL(t) (__same_type((t)0, 0LL) || __same_type((t)0, 0ULL))
+#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
#define __SC_CAST(t, a) (t) a
-#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(sizeof(type) > sizeof(long))
+#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
#ifdef CONFIG_FTRACE_SYSCALLS
#define __SC_STR_ADECL(t, a) #a