From: Stephen Rothwell <sfr@canb•auug.org.au>
To: Tejun Heo <tj@kernel•org>,
Christoph Lameter <cl@linux-foundation•org>,
Ingo Molnar <mingo@elte•hu>
Cc: Linux-Next Mailing List <linux-next@vger•kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger•kernel.org>,
Dennis Zhou <dennisz@fb•com>
Subject: linux-next: build warning after merge of the percpu tree
Date: Wed, 21 Jun 2017 15:20:20 +1000 [thread overview]
Message-ID: <20170621152020.47cacaf6@canb.auug.org.au> (raw)
Hi all,
After merging the percpu tree, today's linux-next build (arm
multi_v7_defconfig) produced this warning:
In file included from include/linux/kernel.h:13:0,
from include/linux/bitmap.h:9,
from mm/percpu.c:58:
mm/percpu.c: In function 'pcpu_alloc':
include/linux/printk.h:303:2: warning: 'err' may be used uninitialized in this function [-Wmaybe-uninitialized]
printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
^
mm/percpu.c:864:14: note: 'err' was declared here
const char *err;
^
I am not sure which commit introduced this, although the
if (is_atomic)
goto fail;
in pcpu_alloc() looks suspicious.
--
Cheers,
Stephen Rothwell
next reply other threads:[~2017-06-21 5:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-21 5:20 Stephen Rothwell [this message]
2017-06-21 15:51 ` [PATCH 1/1] percpu: resolve err may not be initialized in pcpu_alloc Dennis Zhou
2017-06-21 16:02 ` Tejun Heo
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