Re: [PATCH 9/9] blk-zoned: Add ioctl interface for zone operations

[kbuild test robot <lkp@xxxxxxxxx>]

Hi Shaun,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.8-rc7]
[cannot apply to block/for-next next-20160919]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/Damien-Le-Moal/ZBC-Zoned-block-device-support/20160920-062608
config: blackfin-allyesconfig (attached as .config)
compiler: bfin-uclinux-gcc (GCC) 6.2.0
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=blackfin 

All error/warnings (new ones prefixed by >>):

   In file included from include/linux/linkage.h:4:0,
                    from include/linux/kernel.h:6,
                    from block/blk-zoned.c:11:
   In function 'blkdev_zone_action_ioctl',
       inlined from 'blkdev_zone_ioctl' at block/blk-zoned.c:445:7:
>> include/linux/compiler.h:491:38: error: call to '__compiletime_assert_382' declared with attribute error: BUILD_BUG_ON failed: ptr_size >= 8
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
                                         ^
   include/linux/compiler.h:474:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler.h:491:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/bug.h:51:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                        ^~~~~~~~~~~~~~~~~~
   include/linux/bug.h:75:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
     ^~~~~~~~~~~~~~~~
>> arch/blackfin/include/asm/uaccess.h:136:3: note: in expansion of macro 'BUILD_BUG_ON'
      BUILD_BUG_ON(ptr_size >= 8);   \
      ^~~~~~~~~~~~
>> block/blk-zoned.c:382:6: note: in expansion of macro 'get_user'
     if (get_user(sector, (u64 __user *)argp))
         ^~~~~~~~

vim +/get_user +382 block/blk-zoned.c

   366		z.reset = zone->reset;
   367	
   368		blk_unlock_zone(zone);
   369	
   370		if (copy_to_user(argp, &z, sizeof(struct blkzone)))
   371			return -EFAULT;
   372	
   373		return 0;
   374	}
   375	
   376	static int blkdev_zone_action_ioctl(struct block_device *bdev,
   377					    unsigned cmd, void __user *argp)
   378	{
   379		unsigned int op;
   380		u64 sector;
   381	
 > 382		if (get_user(sector, (u64 __user *)argp))
   383			return -EFAULT;
   384	
   385		switch (cmd) {
   386		case BLKRESETZONE:
   387			op = REQ_OP_ZONE_RESET;
   388			break;
   389		case BLKOPENZONE:
   390			op = REQ_OP_ZONE_OPEN;

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

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