linux-kernel - [PATCH 3/4] kgdb,x86_64: fix compile warning found with sparse

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Date:	Fri, 25 Mar 2011 16:44:19 -0500
From:	Jason Wessel <jason.wessel@...driver.com>
To:	torvalds@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, kgdb-bugreport@...ts.sourceforge.net,
	Jason Wessel <jason.wessel@...driver.com>
Subject: [PATCH 3/4] kgdb,x86_64: fix compile warning found with sparse

Fix sparse warning:

arch/x86/kernel/kgdb.c:123:9: warning: switch with no cases

Reported-by: Namhyung Kim <namhyung@...il.com>
Signed-off-by: Jason Wessel <jason.wessel@...driver.com>
---
 arch/x86/kernel/kgdb.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index a413000..3c2fb0f 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -121,8 +121,8 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
 		memcpy(mem, (void *)regs + dbg_reg_def[regno].offset,
 		       dbg_reg_def[regno].size);
 
-	switch (regno) {
 #ifdef CONFIG_X86_32
+	switch (regno) {
 	case GDB_SS:
 		if (!user_mode_vm(regs))
 			*(unsigned long *)mem = __KERNEL_DS;
@@ -135,8 +135,8 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
 	case GDB_FS:
 		*(unsigned long *)mem = 0xFFFF;
 		break;
-#endif
 	}
+#endif
 	return dbg_reg_def[regno].name;
 }
 
-- 
1.7.1

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