diff options
| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-05 11:53:05 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-04-05 16:59:38 +0200 |
| commit | f8781c4a226319fe60e652118b90cf094ccfe747 (patch) | |
| tree | 1c496211debfc33f955021c62898da4c08f052cd /arch/x86/entry/syscall_64.c | |
| parent | ebeb8c82ffaf94435806ff0b686fffd41dd410b5 (diff) | |
syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64
Removing CONFIG_SYSCALL_PTREGS from arch/x86/Kconfig and simply selecting
ARCH_HAS_SYSCALL_WRAPPER unconditionally on x86-64 allows us to simplify
several codepaths.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20180405095307.3730-7-linux@dominikbrodowski.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/entry/syscall_64.c')
| -rw-r--r-- | arch/x86/entry/syscall_64.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/x86/entry/syscall_64.c b/arch/x86/entry/syscall_64.c index 6197850adf91..d5252bc1e380 100644 --- a/arch/x86/entry/syscall_64.c +++ b/arch/x86/entry/syscall_64.c @@ -7,14 +7,9 @@ #include <asm/asm-offsets.h> #include <asm/syscall.h> -#ifdef CONFIG_SYSCALL_PTREGS /* this is a lie, but it does not hurt as sys_ni_syscall just returns -EINVAL */ extern asmlinkage long sys_ni_syscall(const struct pt_regs *); #define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *); -#else /* CONFIG_SYSCALL_PTREGS */ -extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); -#define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); -#endif /* CONFIG_SYSCALL_PTREGS */ #include <asm/syscalls_64.h> #undef __SYSCALL_64 |