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| author | Brian Gerst <brgerst@gmail.com> | 2020-03-13 22:51:43 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-03-21 18:03:25 +0300 |
| commit | 0f78ff17112d8b3469b805ff4ea9780cc1e5c93b (patch) | |
| tree | 43bab69de60c1a887f54180536717883215152ca /arch/x86/entry/syscall_64.c | |
| parent | 25c619e59b395a8c970d339f9c714302738e350e (diff) | |
| download | linux-0f78ff17112d8b3469b805ff4ea9780cc1e5c93b.tar.xz | |
x86/entry: Drop asmlinkage from syscalls
asmlinkage is no longer required since the syscall ABI is now fully under
x86 architecture control. This makes the 32-bit native syscalls a bit more
effecient by passing in regs via EAX instead of on the stack.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20200313195144.164260-18-brgerst@gmail.com
Diffstat (limited to 'arch/x86/entry/syscall_64.c')
| -rw-r--r-- | arch/x86/entry/syscall_64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/entry/syscall_64.c b/arch/x86/entry/syscall_64.c index 66d3e65e3b6b..1594ec72bcbb 100644 --- a/arch/x86/entry/syscall_64.c +++ b/arch/x86/entry/syscall_64.c @@ -11,7 +11,7 @@ #define __SYSCALL_X32(nr, sym) #define __SYSCALL_COMMON(nr, sym) __SYSCALL_64(nr, sym) -#define __SYSCALL_64(nr, sym) extern asmlinkage long __x64_##sym(const struct pt_regs *); +#define __SYSCALL_64(nr, sym) extern long __x64_##sym(const struct pt_regs *); #include <asm/syscalls_64.h> #undef __SYSCALL_64 |