linux-kernel - Re: [PATCH 4/5] init: add support to directly boot to a mapped device

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Date:   Wed, 12 Apr 2017 08:04:08 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc:     kbuild-all@...org, Jonathan Corbet <corbet@....net>,
        Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...hat.com>,
        Will Drewry <wad@...omium.org>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, dm-devel@...hat.com
Subject: Re: [PATCH 4/5] init: add support to directly boot to a mapped device

Hi Will,

[auto build test ERROR on dm/for-next]
[also build test ERROR on v4.11-rc6 next-20170411]
[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/Enric-Balletbo-i-Serra/dm-boot-a-mapped-device-without-an-initramfs/20170412-071136
base:   https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
config: x86_64-randconfig-x010-201715 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

Note: the linux-review/Enric-Balletbo-i-Serra/dm-boot-a-mapped-device-without-an-initramfs/20170412-071136 HEAD 76c4f3dfe69e92fc617c7d30e966931aec694c75 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   init/do_mounts_dm.c: In function 'dm_parse_targets':
>> init/do_mounts_dm.c:231:32: error: passing argument 3 of 'kstrtoull' from incompatible pointer type [-Werror=incompatible-pointer-types]
      if (kstrtoull(opt.start, 10, &(*target)->begin))
                                   ^
   In file included from include/linux/list.h:8:0,
                    from include/linux/async.h:16,
                    from init/do_mounts_dm.c:8:
   include/linux/kernel.h:282:18: note: expected 'long long unsigned int *' but argument is of type 'sector_t * {aka long unsigned int *}'
    int __must_check kstrtoull(const char *s, unsigned int base, unsigned long long *res);
                     ^~~~~~~~~
   init/do_mounts_dm.c:240:32: error: passing argument 3 of 'kstrtoull' from incompatible pointer type [-Werror=incompatible-pointer-types]
      if (kstrtoull(opt.start, 10, &(*target)->length))
                                   ^
   In file included from include/linux/list.h:8:0,
                    from include/linux/async.h:16,
                    from init/do_mounts_dm.c:8:
   include/linux/kernel.h:282:18: note: expected 'long long unsigned int *' but argument is of type 'sector_t * {aka long unsigned int *}'
    int __must_check kstrtoull(const char *s, unsigned int base, unsigned long long *res);
                     ^~~~~~~~~
   cc1: some warnings being treated as errors

vim +/kstrtoull +231 init/do_mounts_dm.c

   225			if (!get_dm_option(&opt, DM_FIELD_SEP)) {
   226				DMERR("failed to parse starting sector"
   227				      " for target %s<%ld>", dev->name, i);
   228				goto parse_fail;
   229			}
   230	
 > 231			if (kstrtoull(opt.start, 10, &(*target)->begin))
   232				goto parse_fail;
   233	
   234			if (!get_dm_option(&opt, DM_FIELD_SEP)) {

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

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