Fix the following compile warning: rch/x86/kernel/cpu/common.c: In function 'syscall_init': arch/x86/kernel/cpu/common.c:1534:6: warning: unused variable 'cpu' [-Wunused-variable] int cpu = smp_processor_id();
Signed-off-by: zhong jiang <zhongji...@huawei.com> --- arch/x86/kernel/cpu/common.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 0e3e803..0b283e5 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1531,8 +1531,6 @@ static __init int setup_clearcpuid(char *arg) /* May not be marked __init: used by software suspend */ void syscall_init(void) { - int 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); -- 1.7.12.4