linux-kernel - [PATCH v2] x86/head64: no need to define early_idt_ripmsg only if CONFIG

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Message-Id: <1455782295-3877-1-git-send-email-kuleshovmail@gmail.com>
Date:	Thu, 18 Feb 2016 13:58:15 +0600
From:	Alexander Kuleshov <kuleshovmail@...il.com>
To:	Ingo Molnar <mingo@...hat.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Andy Lutomirski <luto@...nel.org>,
	Borislav Petkov <bp@...e.de>,
	Alexander Popov <alpopov@...ecurity.com>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	linux-kernel@...r.kernel.org,
	Alexander Kuleshov <kuleshovmail@...il.com>
Subject: [PATCH v2] x86/head64: no need to define early_idt_ripmsg only if CONFIG_KALLSYMS=n

We have definition of the early_idt_ripmsg which represents string header
for the output of the kernel symbols during early exception. But the
header with kernel symbols will be printed in a case if the CONFIG_KALLSYMS=y.

Signed-off-by: Alexander Kuleshov <kuleshovmail@...il.com>
---
Changelog:

v2: commit message fixed and comment added.

 arch/x86/kernel/head_64.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index ffdc0e8..f93997f 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -433,8 +433,10 @@ early_recursion_flag:
 #ifdef CONFIG_EARLY_PRINTK
 early_idt_msg:
 	.asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
+#ifdef CONFIG_KALLSYMS
 early_idt_ripmsg:
 	.asciz "RIP %s\n"
+#endif /* CONFIG_KALLSYMS */
 #endif /* CONFIG_EARLY_PRINTK */
 
 #define NEXT_PAGE(name) \
-- 
2.7.0.364.g4943984