Commit-ID: 8e6b65a1b6cd1711d3acd2aa5c60d38c3e15dabb Gitweb: https://git.kernel.org/tip/8e6b65a1b6cd1711d3acd2aa5c60d38c3e15dabb Author: zhong jiang <zhongji...@huawei.com> AuthorDate: Thu, 13 Sep 2018 10:49:45 +0800 Committer: Borislav Petkov <b...@suse.de> CommitDate: Sat, 15 Sep 2018 14:57:05 +0200
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 <zhongji...@huawei.com> Cc: Andy Lutomirski <l...@kernel.org> Cc: David Woodhouse <d...@amazon.co.uk> Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Cc: Pavel Tatashin <pasha.tatas...@oracle.com> Cc: x86-ml <x...@kernel.org> Link: http://lkml.kernel.org/r/1536806985-24197-1-git-send-email-zhongji...@huawei.com [ Clean up commit message. ] Signed-off-by: Borislav Petkov <b...@suse.de> --- 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 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);
