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x86, um: Mark system call tables readonly

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Mark the system call tables readonly, as they already are on native,
and the 32-bit UM version was in the previous assembly version.  The
32-bit version lost it due to copy and paste from the 64-bit version,
which was missing the const.

Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Link: http://lkml.kernel.org/r/tip-45db1c6176c8171d9ae6fa6d82e07d115a5950ca@git.kernel.org
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2011-12-05 22:48:49 -08:00
parent 45db1c6176
commit a074335a37
2 changed files with 2 additions and 2 deletions
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2
arch/x86/um/sys_call_table_32.c
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@ -43,7 +43,7 @@ typedef void (*sys_call_ptr_t)(void);
extern void sys_ni_syscall(void);
sys_call_ptr_t sys_call_table[] __cacheline_aligned = {
const sys_call_ptr_t sys_call_table[] __cacheline_aligned = {
/*
* Smells like a compiler bug -- it doesn't work
* when the & below is removed.

2
arch/x86/um/sys_call_table_64.c
View file

@ -45,7 +45,7 @@ typedef void (*sys_call_ptr_t)(void);
extern void sys_ni_syscall(void);
sys_call_ptr_t sys_call_table[] __cacheline_aligned = {
const sys_call_ptr_t sys_call_table[] __cacheline_aligned = {
/*
* Smells like a compiler bug -- it doesn't work
* when the & below is removed.