linux-kernel - [tip:x86/cpu] x86/umip: Print UMIP line only once

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Message-ID: <tip-0abbbc63d0251a25d3df6c8a56ab3d3c20af082c@git.kernel.org>
Date:   Mon, 3 Dec 2018 09:18:55 -0800
From:   tip-bot for Borislav Petkov <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     mingo@...nel.org, hpa@...or.com, linux-kernel@...r.kernel.org,
        bp@...e.de, ricardo.neri-calderon@...ux.intel.com,
        tglx@...utronix.de, mingo@...hat.com
Subject: [tip:x86/cpu] x86/umip: Print UMIP line only once

Commit-ID:  0abbbc63d0251a25d3df6c8a56ab3d3c20af082c
Gitweb:     https://git.kernel.org/tip/0abbbc63d0251a25d3df6c8a56ab3d3c20af082c
Author:     Borislav Petkov <bp@...e.de>
AuthorDate: Tue, 27 Nov 2018 21:54:18 +0100
Committer:  Borislav Petkov <bp@...e.de>
CommitDate: Mon, 3 Dec 2018 16:59:10 +0100

x86/umip: Print UMIP line only once

... instead of issuing it per CPU and flooding dmesg unnecessarily.
Streamline the formulation, while at it.

Signed-off-by: Borislav Petkov <bp@...e.de>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Link: https://lkml.kernel.org/r/20181127205936.30331-1-bp@alien8.de
---
 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;