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

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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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[PATCH 0/5] dm: boot a mapped device without an initramfs Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-11 17:40 +0200
  [PATCH 1/5] dm: move dm_table_destroy() to same header as dm_table_create() Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-11 17:40 +0200
  [PATCH 5/5] dm verity: add support for version 0 of the on-disk format Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-11 17:40 +0200
    Re: [PATCH 5/5] dm verity: add support for version 0 of the on-disk  format Milan Broz <gmazyland@gmail.com> - 2017-04-11 19:30 +0200
      Re: [PATCH 5/5] dm verity: add support for version 0 of the on-disk  format Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-11 21:50 +0200
  [PATCH 2/5] dm: move dm definitions outside the private header to boot dm targets. Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-11 17:40 +0200
  [PATCH 3/5] dm: export a table+mapped device to the ioctl interface Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-11 17:40 +0200
  [PATCH 4/5] init: add support to directly boot to a mapped device Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-11 17:40 +0200
    Re: [PATCH 4/5] init: add support to directly boot to a mapped device kbuild test robot <lkp@intel.com> - 2017-04-12 02:10 +0200

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