From: Borislav Petkov <[email protected]>
Commit
d56fe4bf5f3c ("x86/asm/entry/64: Always set up SYSENTER MSRs")
missed to add "ULL" to the 0 and wrmsrl_safe() complains:
arch/x86/kernel/cpu/common.c: In function ‘syscall_init’:
arch/x86/kernel/cpu/common.c:1226:2: warning: right shift count >= width of
type
wrmsrl_safe(MSR_IA32_SYSENTER_CS, 0);
Fix it.
Signed-off-by: Borislav Petkov <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Will Drewry <[email protected]>
Cc: Ingo Molnar <[email protected]>
---
arch/x86/kernel/cpu/common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index bb6633a87a19..2c249b57e4b5 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1223,7 +1223,7 @@ void syscall_init(void)
wrmsrl_safe(MSR_IA32_SYSENTER_EIP, (u64)ia32_sysenter_target);
#else
wrmsrl(MSR_CSTAR, ignore_sysret);
- wrmsrl_safe(MSR_IA32_SYSENTER_CS, 0);
+ wrmsrl_safe(MSR_IA32_SYSENTER_CS, 0ULL);
wrmsrl_safe(MSR_IA32_SYSENTER_ESP, 0ULL);
wrmsrl_safe(MSR_IA32_SYSENTER_EIP, 0ULL);
#endif
--
2.3.3
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