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Message-ID: <20120228102703.GA6090@x1.osrc.amd.com> Date: Tue, 28 Feb 2012 11:27:03 +0100 From: Borislav Petkov <bp@...en8.de> To: Zhengwang Ruan <ruan.zhengwang@...il.com> Cc: rostedt@...dmis.org, fweisbec@...il.com, mingo@...hat.com, linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org Subject: Re: [PATCH] Trace: initialize variable to clear warning On Tue, Feb 28, 2012 at 05:09:34PM +0800, Zhengwang Ruan wrote: > GCC warns that 'page2' is used without being initialized previously before > being used, this is to clear it. > > Signed-off-by: Zhengwang Ruan <ruan.zhengwang@...il.com> > --- > kernel/trace/trace.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c > index a3f1bc5..47376ba 100644 > --- a/kernel/trace/trace.c > +++ b/kernel/trace/trace.c > @@ -3694,7 +3694,7 @@ tracing_mark_write(struct file *filp, const char __user *ubuf, > int nr_pages = 1; > ssize_t written; > void *page1; > - void *page2; > + void *uninitialized_var(page2); > int offset; > int size; > int len; We had this already - gcc 4.5 warns incorrectly about this, you should upgrade to 4.6: http://marc.info/?l=linux-kernel&m=132083844427859 -- Regards/Gruss, Boris. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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