Re: [next:master 10653/11539] arch/x86/ia32/audit.c:38:14: sparse: incompatible types for 'case' statement

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Dec 09, 2014 at 11:27:51AM -0800, Fengguang Wu wrote:
> 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@xxxxxxxxxxxxxxxxxxxx>
> > wrote:
> > 
> > > On Tue, 9 Dec 2014 02:40:09 +0800 kbuild test robot <
> > > fengguang.wu@xxxxxxxxx> 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.

I'll run this during bisect, hopefully it will avoid such kind of
false errors in future.

        rm -fr include/generated/ arch/*/include/generated/

Thanks,
Fengguang

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]