diff options
| author | zhong jiang <zhongjiang@huawei.com> | 2018-09-13 10:49:45 +0800 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2018-09-15 14:57:05 +0200 |
| commit | 8e6b65a1b6cd1711d3acd2aa5c60d38c3e15dabb (patch) | |
| tree | adb384a1164e6f249f8845ab3462bfc3ab1bad44 /arch/x86/kernel/cpu/common.c | |
| parent | bf904d2762ee6fc1e4acfcb0772bbfb4a27ad8a6 (diff) | |
x86/CPU: Fix unused variable warning when !CONFIG_IA32_EMULATION
Get rid of local @cpu variable which is unused in the
!CONFIG_IA32_EMULATION case.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1536806985-24197-1-git-send-email-zhongjiang@huawei.com
[ Clean up commit message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 2d5b1fa5f9c6..8bffeae9bac2 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1531,8 +1531,6 @@ EXPORT_PER_CPU_SYMBOL(__preempt_count); /* May not be marked __init: used by software suspend */ void syscall_init(void) { - int __maybe_unused cpu = smp_processor_id(); - wrmsr(MSR_STAR, 0, (__USER32_CS << 16) | __KERNEL_CS); wrmsrl(MSR_LSTAR, (unsigned long)entry_SYSCALL_64); @@ -1545,7 +1543,8 @@ void syscall_init(void) * AMD doesn't allow SYSENTER in long mode (either 32- or 64-bit). */ wrmsrl_safe(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS); - wrmsrl_safe(MSR_IA32_SYSENTER_ESP, (unsigned long)(cpu_entry_stack(cpu) + 1)); + wrmsrl_safe(MSR_IA32_SYSENTER_ESP, + (unsigned long)(cpu_entry_stack(smp_processor_id()) + 1)); wrmsrl_safe(MSR_IA32_SYSENTER_EIP, (u64)entry_SYSENTER_compat); #else wrmsrl(MSR_CSTAR, (unsigned long)ignore_sysret); |