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vsyscall_64: add missing ifdef CONFIG_SECCOMP

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vsyscall_seccomp introduced a dependency on __secure_computing.  On
configurations with CONFIG_SECCOMP disabled, compilation will fail.

Reported-by: feng xiangjun <fengxj325@gmail.com>
Signed-off-by: Will Drewry <wad@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Will Drewry 2012-07-14 10:32:52 -05:00 committed by Linus Torvalds
parent a7559b13de
commit 09d314425f
1 changed files with 4 additions and 0 deletions
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4
arch/x86/kernel/vsyscall_64.c
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@ -139,6 +139,7 @@ static int addr_to_vsyscall_nr(unsigned long addr)
return nr;
}
#ifdef CONFIG_SECCOMP
static int vsyscall_seccomp(struct task_struct *tsk, int syscall_nr)
{
if (!seccomp_mode(&tsk->seccomp))
@ -147,6 +148,9 @@ static int vsyscall_seccomp(struct task_struct *tsk, int syscall_nr)
task_pt_regs(tsk)->ax = syscall_nr;
return __secure_computing(syscall_nr);
}
#else
#define vsyscall_seccomp(_tsk, _nr) 0
#endif
static bool write_ok_or_segv(unsigned long ptr, size_t size)
{