From: Fengguang Wu <fengguang.wu@intel.com>
To: David Drysdale <drysdale@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
kbuild-all@01.org,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [next:master 10653/11539] arch/x86/ia32/audit.c:38:14: sparse: incompatible types for 'case' statement
Date: Tue, 9 Dec 2014 11:27:51 -0800 [thread overview]
Message-ID: <20141209192751.GA13752@wfg-t540p.sh.intel.com> (raw)
In-Reply-To: <CAHse=S-7g77Dv+j7mUXgmAACs4czLQSv0VA361t=hecwQr03rg@mail.gmail.com>
On Tue, Dec 09, 2014 at 09:02:02AM +0000, David Drysdale wrote:
> On Mon, Dec 8, 2014 at 9:03 PM, Andrew Morton <akpm@linux-foundation.org>
> wrote:
>
> > On Tue, 9 Dec 2014 02:40:09 +0800 kbuild test robot <
> > fengguang.wu@intel.com> wrote:
> >
> > > tree: git://
> > git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> > > head: cf12164be498180dc466ef97194ca7755ea39f3b
> > > commit: b4baa9e36be0651f7eb15077af5e0eff53b7691b [10653/11539] x86: hook
> > up execveat system call
> > > reproduce:
> > > # apt-get install sparse
> > > git checkout b4baa9e36be0651f7eb15077af5e0eff53b7691b
> > > make ARCH=x86_64 allmodconfig
> > > make C=1 CF=-D__CHECK_ENDIAN__
> > >
> > >
> > > sparse warnings: (new ones prefixed by >>)
> > >
> > > arch/x86/ia32/audit.c:38:14: sparse: undefined identifier
> > '__NR_execveat'
> > > >> arch/x86/ia32/audit.c:38:14: sparse: incompatible types for 'case'
> > statement
> > > arch/x86/ia32/audit.c:38:14: sparse: Expected constant expression in
> > case statement
> > > arch/x86/ia32/audit.c: In function 'ia32_classify_syscall':
> > > arch/x86/ia32/audit.c:38:7: error: '__NR_execveat' undeclared (first
> > use in this function)
> > > case __NR_execveat:
> > > ^
> > > arch/x86/ia32/audit.c:38:7: note: each undeclared identifier is
> > reported only once for each function it appears in
> > > --
> >
> > Confused. This makes no sense and I can't reproduce it.
> >
>
> Ditto.
Sorry I cannot reproduce the issue, too. I've tried upgrading sparse.
> Someone else did previously[1] have a build problem from a stale copy of
> arch/x86/include/generated/asm/unistd_32.h in their tree, but I don't know
> how that could happen.
>
> [1] https://lkml.org/lkml/2014/11/25/542
Since I'm doing incremental builds, it could happen that some left
over generated files lead to interesting errors.
Thanks,
Fengguang
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next prev parent reply other threads:[~2014-12-09 19:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-08 18:40 kbuild test robot
2014-12-08 21:03 ` Andrew Morton
2014-12-09 9:02 ` David Drysdale
2014-12-09 19:27 ` Fengguang Wu [this message]
2014-12-09 20:08 ` Fengguang Wu
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