Hi "Alexander,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.15-rc7]
[cannot apply to axboe-block/for-next hch-configfs/for-next next-20211028]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Alexander-V-Buev/implement-direct-IO-with-integrity/20211028-193652
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 1fc596a56b334f4d593a2b49e5ff55af6aaa0816
config: h8300-randconfig-r016-20211028 (attached as .config)
compiler: h8300-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/582fcf396dced9b11bbf489cd5f64e213de2e4fd
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Alexander-V-Buev/implement-direct-IO-with-integrity/20211028-193652
        git checkout 582fcf396dced9b11bbf489cd5f64e213de2e4fd
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=h8300 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   In file included from include/asm-generic/bug.h:5,
                    from arch/h8300/include/asm/bug.h:8,
                    from include/linux/bug.h:5,
                    from include/linux/thread_info.h:13,
                    from include/asm-generic/current.h:5,
                    from ./arch/h8300/include/generated/asm/current.h:1,
                    from include/linux/sched.h:12,
                    from include/linux/blkdev.h:5,
                    from block/bio-integrity.c:8:
   include/linux/scatterlist.h: In function 'sg_set_buf':
   include/asm-generic/page.h:89:51: warning: ordered comparison of pointer with null pointer [-Wextra]
      89 | #define virt_addr_valid(kaddr)  (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
         |                                                   ^~
   include/linux/compiler.h:78:45: note: in definition of macro 'unlikely'
      78 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   include/linux/scatterlist.h:143:9: note: in expansion of macro 'BUG_ON'
     143 |         BUG_ON(!virt_addr_valid(buf));
         |         ^~~~~~
   include/linux/scatterlist.h:143:17: note: in expansion of macro 'virt_addr_valid'
     143 |         BUG_ON(!virt_addr_valid(buf));
         |                 ^~~~~~~~~~~~~~~
   block/bio-integrity.c: At top level:
>> block/bio-integrity.c:94:6: warning: no previous prototype for 'bio_integrity_payload_release_pages' [-Wmissing-prototypes]
      94 | void bio_integrity_payload_release_pages(struct bio_integrity_payload *bip)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/bio_integrity_payload_release_pages +94 block/bio-integrity.c

    93	
  > 94	void bio_integrity_payload_release_pages(struct bio_integrity_payload *bip)
    95	{
    96		unsigned short i;
    97		struct bio_vec *bv;
    98	
    99		for (i = 0; i < bip->bip_vcnt; ++i) {
   100			bv = bip->bip_vec + i;
   101			put_page(bv->bv_page);
   102		}
   103	}
   104	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org