From: James Hogan <james.hogan@imgtec.com>
Date: Thu, 4 Jun 2015 12:25:27 +0000 (+0100)
Subject: MIPS: Fix enabling of DEBUG_STACKOVERFLOW
X-Git-Tag: v3.4.109~19
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a5c75be0e779d38c970b4a2129c238a5bab0dad4;p=thirdparty%2Fkernel%2Fstable.git

MIPS: Fix enabling of DEBUG_STACKOVERFLOW

commit 5f35b9cd553fd64415b563497d05a563c988dbd6 upstream.

Commit 334c86c494b9 ("MIPS: IRQ: Add stackoverflow detection") added
kernel stack overflow detection, however it only enabled it conditional
upon the preprocessor definition DEBUG_STACKOVERFLOW, which is never
actually defined. The Kconfig option is called DEBUG_STACKOVERFLOW,
which manifests to the preprocessor as CONFIG_DEBUG_STACKOVERFLOW, so
switch it to using that definition instead.

Fixes: 334c86c494b9 ("MIPS: IRQ: Add stackoverflow detection")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Adam Jiang <jiang.adam@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/10531/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Zefan Li <lizefan@huawei.com>
---

diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index a5aa43d07c8ed..9cd8cbf9bd43c 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -110,7 +110,7 @@ void __init init_IRQ(void)
 #endif
 }
 
-#ifdef DEBUG_STACKOVERFLOW
+#ifdef CONFIG_DEBUG_STACKOVERFLOW
 static inline void check_stack_overflow(void)
 {
 	unsigned long sp;