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

From: kbuild test robot
Date: Tue Jun 25 2019 - 15:14:21 EST


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@xxxxxxxxx>

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

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