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x86/asm/entry: (Re-)rename __NR_entry_INT80_compat_max to __NR_syscall_compat_max

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Brian Gerst noticed that I did a weird rename in the following commit:

   b2502b418e ("x86/asm/entry: Untangle 'system_call' into two entry points: entry_SYSCALL_64 and entry_INT80_32")

which renamed __NR_ia32_syscall_max to __NR_entry_INT80_compat_max.

Now the original name was a misnomer, but the new one is a misnomer as well,
as all the 32-bit compat syscall entry points (sysenter, syscall) share the
system call table, not just the INT80 based one.

Rename it to __NR_syscall_compat_max.

Reported-by: Brian Gerst <brgerst@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2015-06-08 21:20:26 +02:00
parent eb47854415
commit bace7117d3
2 changed files with 4 additions and 4 deletions
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6
arch/x86/entry/syscall_32.c
View file

@ -10,7 +10,7 @@
#else
#define SYM(sym, compat) sym
#define ia32_sys_call_table sys_call_table
#define __NR_entry_INT80_compat_max __NR_syscall_max
#define __NR_syscall_compat_max __NR_syscall_max
#endif
#define __SYSCALL_I386(nr, sym, compat) extern asmlinkage void SYM(sym, compat)(void) ;
@ -23,11 +23,11 @@ typedef asmlinkage void (*sys_call_ptr_t)(void);
extern asmlinkage void sys_ni_syscall(void);
__visible const sys_call_ptr_t ia32_sys_call_table[__NR_entry_INT80_compat_max+1] = {
__visible const sys_call_ptr_t ia32_sys_call_table[__NR_syscall_compat_max+1] = {
/*
* Smells like a compiler bug -- it doesn't work
* when the & below is removed.
*/
[0 ... __NR_entry_INT80_compat_max] = &sys_ni_syscall,
[0 ... __NR_syscall_compat_max] = &sys_ni_syscall,
#include <asm/syscalls_32.h>
};

2
arch/x86/kernel/asm-offsets_64.c
View file

@ -66,7 +66,7 @@ int main(void)
DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1);
DEFINE(NR_syscalls, sizeof(syscalls_64));
DEFINE(__NR_entry_INT80_compat_max, sizeof(syscalls_ia32) - 1);
DEFINE(__NR_syscall_compat_max, sizeof(syscalls_ia32) - 1);
DEFINE(IA32_NR_syscalls, sizeof(syscalls_ia32));
return 0;