linux-kernel - Re: [PATCH] z3fold: don't fail kernel build if z3fold

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Date:   Thu, 10 Nov 2016 17:05:00 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Vitaly Wool <vitalywool@...il.com>
Cc:     kbuild-all@...org, Linux-MM <linux-mm@...ck.org>,
        linux-kernel@...r.kernel.org, Dan Streetman <ddstreet@...e.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] z3fold: don't fail kernel build if z3fold_header is too
 big

Hi Vitaly,

[auto build test WARNING on mmotm/master]
[also build test WARNING on v4.9-rc4 next-20161110]
[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/Vitaly-Wool/z3fold-don-t-fail-kernel-build-if-z3fold_header-is-too-big/20161110-161657
base:   git://git.cmpxchg.org/linux-mmotm.git master
config: tile-allmodconfig (attached as .config)
compiler: tilegx-linux-gcc (GCC) 4.6.2
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=tile 

All warnings (new ones prefixed by >>):

   mm/z3fold.c: In function 'init_z3fold':
>> mm/z3fold.c:817:3: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long unsigned int' [-Wformat]

vim +817 mm/z3fold.c

   801		.create =	z3fold_zpool_create,
   802		.destroy =	z3fold_zpool_destroy,
   803		.malloc =	z3fold_zpool_malloc,
   804		.free =		z3fold_zpool_free,
   805		.shrink =	z3fold_zpool_shrink,
   806		.map =		z3fold_zpool_map,
   807		.unmap =	z3fold_zpool_unmap,
   808		.total_size =	z3fold_zpool_total_size,
   809	};
   810	
   811	MODULE_ALIAS("zpool-z3fold");
   812	
   813	static int __init init_z3fold(void)
   814	{
   815		/* Fail the initialization if z3fold header won't fit in one chunk */
   816		if (sizeof(struct z3fold_header) > ZHDR_SIZE_ALIGNED) {
 > 817			pr_err("z3fold: z3fold_header size (%d) is bigger than "
   818				"the chunk size (%d), can't proceed\n",
   819				sizeof(struct z3fold_header) , ZHDR_SIZE_ALIGNED);
   820			return -E2BIG;
   821		}
   822	
   823		zpool_register_driver(&z3fold_zpool_driver);
   824		return 0;
   825	}

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

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