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authorChris Zankel <chris@zankel.net>2012-10-23 20:17:05 -0700
committerChris Zankel <chris@zankel.net>2012-10-25 14:53:36 -0700
commit2f72d4f6a29cf84c40fc05c76020b347b4774393 (patch)
tree3877c9fdac29b33d2beaab2c58c36a0d6f7649ca /arch/xtensa/kernel
parent6f0c0580b70c89094b3422ba81118c7b959c7556 (diff)
xtensa: allow multi-inclusion for uapi/unistd.h
Xtensa implements a method that allows to generate a arbitrary output for each system call by defining the __SYSCALL(number, function, num_args). This usually requires to include uapi/unistd.h twice. Instead of removing the guard agains multiple inclusion entirely, allow to include unistd.h again only if __SYSCALL is defined. Note that __SYSCALL gets always undefined at the end of the file. Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/kernel')
-rw-r--r--arch/xtensa/kernel/syscall.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c
index a5c01e74d5d..5702065f472 100644
--- a/arch/xtensa/kernel/syscall.c
+++ b/arch/xtensa/kernel/syscall.c
@@ -32,10 +32,8 @@ typedef void (*syscall_t)(void);
syscall_t sys_call_table[__NR_syscall_count] /* FIXME __cacheline_aligned */= {
[0 ... __NR_syscall_count - 1] = (syscall_t)&sys_ni_syscall,
-#undef __SYSCALL
#define __SYSCALL(nr,symbol,nargs) [ nr ] = (syscall_t)symbol,
-#undef __KERNEL_SYSCALLS__
-#include <asm/unistd.h>
+#include <uapi/asm/unistd.h>
};
asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg)
@@ -49,7 +47,8 @@ asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg)
return (long)ret;
}
-asmlinkage long xtensa_fadvise64_64(int fd, int advice, unsigned long long offset, unsigned long long len)
+asmlinkage long xtensa_fadvise64_64(int fd, int advice,
+ unsigned long long offset, unsigned long long len)
{
return sys_fadvise64_64(fd, offset, len, advice);
}