linux-kernel - Re: [PATCH v1 1/1] ata: libata-scsi: Refactor scsi_6_lba_len() with use of get_unaligned

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Date:   Fri, 29 Jul 2022 11:25:53 +0800
From:   kernel test robot <lkp@...el.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: [PATCH v1 1/1] ata: libata-scsi: Refactor scsi_6_lba_len() with
 use of get_unaligned_be24()

Hi Andy,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.19-rc8 next-20220728]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Andy-Shevchenko/ata-libata-scsi-Refactor-scsi_6_lba_len-with-use-of-get_unaligned_be24/20220726-234746
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git e0dccc3b76fb35bb257b4118367a883073d7390e
config: mips-randconfig-r011-20220724 (https://download.01.org/0day-ci/archive/20220729/202207291151.npmUhv4C-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 83882606dbd7ffb0bdd3460356202d97705809c8)
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
        # install mips cross compiling tool for clang build
        # apt-get install binutils-mips-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/ae9a00d0e0375aa2aea7a61dc2894d9d06005f8e
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Andy-Shevchenko/ata-libata-scsi-Refactor-scsi_6_lba_len-with-use-of-get_unaligned_be24/20220726-234746
        git checkout ae9a00d0e0375aa2aea7a61dc2894d9d06005f8e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/ata/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> drivers/ata/libata-scsi.c:1320:29: error: incompatible integer to pointer conversion passing 'const u8' (aka 'const unsigned char') to parameter of type 'const void *' [-Wint-conversion]
           *plba = get_unaligned_be24(cdb[1]) & 0x1fffff;
                                      ^~~~~~
   include/asm-generic/unaligned.h:90:50: note: passing argument to parameter 'p' here
   static inline u32 get_unaligned_be24(const void *p)
                                                    ^
   1 error generated.


vim +1320 drivers/ata/libata-scsi.c

  1307	
  1308	/**
  1309	 *	scsi_6_lba_len - Get LBA and transfer length
  1310	 *	@cdb: SCSI command to translate
  1311	 *
  1312	 *	Calculate LBA and transfer length for 6-byte commands.
  1313	 *
  1314	 *	RETURNS:
  1315	 *	@plba: the LBA
  1316	 *	@plen: the transfer length
  1317	 */
  1318	static void scsi_6_lba_len(const u8 *cdb, u64 *plba, u32 *plen)
  1319	{
> 1320		*plba = get_unaligned_be24(cdb[1]) & 0x1fffff;
  1321		*plen = cdb[4];
  1322	}
  1323	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp