linux-kernel - [PATCH] kgdb: Fix warning with !CONFIG_DEBUG

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Message-Id: <1348261150-12423-1-git-send-email-andi@firstfloor.org>
Date:	Fri, 21 Sep 2012 13:59:10 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	jason.wessel@...driver.com
Cc:	linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH] kgdb: Fix warning with !CONFIG_DEBUG_RODATA

From: Andi Kleen <ak@...ux.intel.com>

Fixes

arch/x86/kernel/kgdb.c: In function ‘kgdb_arch_set_breakpoint’:
arch/x86/kernel/kgdb.c:749:7: warning: unused variable ‘opc’ [-Wunused-variable]

when CONFIG_DEBUG_RODATA is not defined.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
 arch/x86/kernel/kgdb.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index 3f61904..0e4badd 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -746,7 +746,9 @@ void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip)
 int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
 {
 	int err;
+#ifdef CONFIG_DEBUG_RODATA
 	char opc[BREAK_INSTR_SIZE];
+#endif
 
 	bpt->type = BP_BREAKPOINT;
 	err = probe_kernel_read(bpt->saved_instr, (char *)bpt->bpt_addr,
-- 
1.7.7.6

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