linux-kernel - Re: [PATCH] printk: Make linux/printk.h self-contained

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Message-ID: <20200613130949.GA22005@gondor.apana.org.au>
Date:   Sat, 13 Jun 2020 23:09:49 +1000
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     kernel test robot <lkp@...el.com>, linux-sparse@...r.kernel.org
Cc:     Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        kbuild-all@...ts.01.org
Subject: Re: [PATCH] printk: Make linux/printk.h self-contained

On Sat, Jun 13, 2020 at 08:28:34PM +0800, kernel test robot wrote:
> 
> Hi Herbert,
> 
> I love your patch! Perhaps something to improve:
> 
> [auto build test WARNING on linus/master]
> [also build test WARNING on v5.7 next-20200611]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
> 
> url:    https://github.com/0day-ci/linux/commits/Herbert-Xu/printk-Make-linux-printk-h-self-contained/20200611-205340
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b29482fde649c72441d5478a4ea2c52c56d97a5e
> :::::: branch date: 13 hours ago
> :::::: commit date: 13 hours ago
> config: powerpc-randconfig-s031-20200611 (attached as .config)
> compiler: powerpc64le-linux-gcc (GCC) 9.3.0
> reproduce:
>         # apt-get install sparse
>         # sparse version: v0.6.1-250-g42323db3-dirty
>         # save the attached .config to linux build tree
>         make W=1 C=1 ARCH=powerpc CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> 
> 
> sparse warnings: (new ones prefixed by >>)
> 
> >> include/linux/ratelimit_types.h:16:25: sparse: sparse: expected ; at end of declaration
>    include/linux/ratelimit_types.h:16:25: sparse: sparse: Expected } at end of struct-union-enum-specifier
>    include/linux/ratelimit_types.h:16:25: sparse: sparse: got lock
>    include/linux/ratelimit_types.h:24:1: sparse: sparse: Expected ; at the end of type declaration
>    include/linux/ratelimit_types.h:24:1: sparse: sparse: got }

This looks like a bug in sparse as the same code compiles just
fine.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt