SEP must be present in order for do_fast_syscall_32() to be called on native
32-bit. Therefore the check here is redundant.
Signed-off-by: Brian Gerst <brge...@gmail.com>
---
arch/x86/entry/common.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index 9e01445f6679c..bdb4c15b8610e 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -587,8 +587,7 @@ __visible noinstr long do_fast_syscall_32(struct pt_regs
*regs)
* We don't allow syscalls at all from VM86 mode, but we still
* need to check VM, because we might be returning from sys_vm86.
*/
- return static_cpu_has(X86_FEATURE_SEP) &&
- regs->cs == __USER_CS && regs->ss == __USER_DS &&
+ return regs->cs == __USER_CS && regs->ss == __USER_DS &&
regs->ip == landing_pad &&
(regs->flags & (X86_EFLAGS_RF | X86_EFLAGS_TF | X86_EFLAGS_VM))
== 0;
#endif
--
2.26.2
