From: Helge Deller <deller@gmx.de>
To: linux-parisc@vger.kernel.org,
James Bottomley <James.Bottomley@HansenPartnership.com>
Subject: parisc: avoid unitialized variable warning in pa_memcpy()
Date: Wed, 27 Feb 2013 23:21:15 +0100 [thread overview]
Message-ID: <20130227222115.GA2921@p100.box> (raw)
In-Reply-To: <20130227221137.GA2806@p100.box>
commit eed0220c5b2f33e4da2e9ba207c798c1bdebe500
Author: Helge Deller <deller@gmx.de>
Date: Wed Feb 27 00:06:48 2013 +0100
parisc: avoid unitialized variable warning in pa_memcpy()
Avoid this warning, while still prevent gcc from optimizing away the ex=
ception code:
arch/parisc/lib/memcpy.c: In function =E2=80=98pa_memcpy=E2=80=99:
arch/parisc/lib/memcpy.c:256:2: warning: =E2=80=98dummy=E2=80=99 may be=
used uninitialized in this function [-Wuninitialized]
Signed-off-by: Helge Deller <deller@gmx.de>
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 1dbca5c..a49cc81 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -68,7 +68,7 @@
DECLARE_PER_CPU(struct exception_data, exception_data);
=20
#define preserve_branch(label) do { \
- volatile int dummy; \
+ volatile int dummy =3D 0; \
/* The following branch is never taken, it's just here to */ \
/* prevent gcc from optimizing away our exception code. */ \
if (unlikely(dummy !=3D dummy)) \
--
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next prev parent reply other threads:[~2013-02-27 22:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-27 22:11 upcoming patches for 3.9 Helge Deller
2013-02-27 22:13 ` parisc: select ARCH_WANT_FRAME_POINTERS Helge Deller
2013-02-27 22:15 ` parisc: fix compile warnings triggered by atomic_sub(sizeof(),v) Helge Deller
2013-02-27 23:09 ` Rolf Eike Beer
2013-02-27 23:41 ` Helge Deller
2013-02-27 22:17 ` parisc: switch to compat_functions of io_setup, io_getevents and io_submit Helge Deller
2013-02-27 22:19 ` parisc: remove unused variable 'compat_val' Helge Deller
2013-02-27 22:21 ` Helge Deller [this message]
2013-02-27 22:22 ` parisc: check return value of down_interruptible() in hp_sdc_rtc.c Helge Deller
2013-03-02 19:40 ` parisc: fix redefinition of SET_PERSONALITY Helge Deller
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