linux-kernel - [PATCH v2 5/6] x86_64: kasan: add message about kasan being initialized

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Message-id: <1435828178-10975-6-git-send-email-a.ryabinin@samsung.com>
Date:	Thu, 02 Jul 2015 12:09:37 +0300
From:	Andrey Ryabinin <a.ryabinin@...sung.com>
To:	Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org
Cc:	Andrey Konovalov <adech.fo@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Borislav Petkov <bp@...en8.de>,
	Alexander Popov <alpopov@...ecurity.com>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	Alexander Potapenko <glider@...gle.com>,
	linux-kernel@...r.kernel.org,
	Andrey Ryabinin <a.ryabinin@...sung.com>
Subject: [PATCH v2 5/6] x86_64: kasan: add message about kasan being initialized

Print informational message to tell user that kernel
runs with kasan enabled.
Add "kasan: " prefix to all messages in kasan_init_64.

Signed-off-by: Andrey Ryabinin <a.ryabinin@...sung.com>
---
 arch/x86/mm/kasan_init_64.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index 9a54dbe..e1840f3 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -1,3 +1,4 @@
+#define pr_fmt(fmt) "kasan: " fmt
 #include <linux/bootmem.h>
 #include <linux/kasan.h>
 #include <linux/kdebug.h>
@@ -237,4 +238,6 @@ void __init kasan_init(void)
 	load_cr3(init_level4_pgt);
 	__flush_tlb_all();
 	init_task.kasan_depth = 0;
+
+	pr_info("Kernel address sanitizer initialized\n");
 }
-- 
2.4.5

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