[PATCH] x86/umip: Print UMIP line only once

From: Borislav Petkov
Date: Tue Nov 27 2018 - 15:59:41 EST


From: Borislav Petkov <bp@xxxxxxx>

... instead of issuing it per CPU and flooding dmesg unnecessarily.

Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
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 ffb181f959d2..2c56b8066280 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -353,7 +353,7 @@ static __always_inline void setup_umip(struct cpuinfo_x86 *c)

cr4_set_bits(X86_CR4_UMIP);

- pr_info("x86/cpu: Activated the Intel User Mode Instruction Prevention (UMIP) CPU feature\n");
+ pr_info_once("x86/cpu: Intel User Mode Instruction Prevention (UMIP) activated\n");

return;

--
2.19.1