Re: [PATCH v4 3/7] lib/hexdump.c: Optionally suppress lines of repeated bytes

From: kbuild test robot <lkp@intel.com>
To: Alastair D'Silva <alastair@au1.ibm.com>
Cc: kbuild-all@01.org, alastair@d-silva.org,
	linux-fbdev@vger.kernel.org,
	Stanislaw Gruszka <sgruszka@redhat.com>,
	Petr Mladek <pmladek@suse.com>, David Airlie <airlied@linux.ie>,
	Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
	dri-devel@lists.freedesktop.org, devel@driverdev.osuosl.org,
	linux-scsi@vger.kernel.org, Jassi Brar <jassisinghbrar@gmail.com>,
	ath10k@lists.infradead.org, intel-gfx@lists.freedesktop.org,
	Dan Carpenter <dan.carpenter@oracle.com>,
	Jose Abreu <Jose.Abreu@synopsys.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	linux-fsdevel@vger.kernel.org,
	Steven Rostedt <rostedt@goodmis.org>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Benson Leung <bleung@chromium.org>,
	Kalle Valo <kvalo@codeaurora.org>,
	Karsten Keil <isdn@linux-pingi.de>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	David Laight <David.Laight@ACULAB.COM>,
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	netdev@vger.kernel.org,
	Enric Balletbo i Serra <enric.balletbo@collabora.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	"David S. Miller" <davem@davemloft.net>,
	Alexander Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH v4 3/7] lib/hexdump.c: Optionally suppress lines of repeated bytes
Date: Wed, 26 Jun 2019 03:13:22 +0800	[thread overview]
Message-ID: <201906260312.SmUKCpwr%lkp@intel.com> (raw)
In-Reply-To: <20190625031726.12173-4-alastair@au1.ibm.com>

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Hi Alastair,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.2-rc6 next-20190625]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Alastair-D-Silva/Hexdump-Enhancements/20190625-224046
config: xtensa-allyesconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=xtensa 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   lib/hexdump.c: In function 'announce_skipped':
>> lib/hexdump.c:243:28: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t {aka unsigned int}' [-Wformat=]
     printk("%s%s ** Skipped %lu bytes of value 0x%x **\n",
                             ~~^
                             %u

vim +243 lib/hexdump.c

   236	
   237	static void announce_skipped(const char *level, const char *prefix_str,
   238					   u8 val, size_t count)
   239	{
   240		if (count == 0)
   241			return;
   242	
 > 243		printk("%s%s ** Skipped %lu bytes of value 0x%x **\n",
   244		       level, prefix_str, count, val);
   245	}
   246	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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