Re: [PATCH v5 11/18] nvme: Add pr_ops read_keys support

From: kernel test robot <lkp@intel.com>
To: Mike Christie <michael.christie@oracle.com>,
	bvanassche@acm.org, hch@lst.de, martin.petersen@oracle.com,
	linux-scsi@vger.kernel.org,
	james.bottomley@hansenpartnership.com,
	linux-block@vger.kernel.org, dm-devel@redhat.com,
	snitzer@kernel.org, axboe@kernel.dk,
	linux-nvme@lists.infradead.org, chaitanyak@nvidia.com,
	kbusch@kernel.org, target-devel@vger.kernel.org
Cc: oe-kbuild-all@lists.linux.dev,
	Mike Christie <michael.christie@oracle.com>
Subject: Re: [PATCH v5 11/18] nvme: Add pr_ops read_keys support
Date: Tue, 28 Mar 2023 15:11:05 +0800	[thread overview]
Message-ID: <202303281502.U47uzous-lkp@intel.com> (raw)
In-Reply-To: <20230324181741.13908-12-michael.christie@oracle.com>

Hi Mike,

I love your patch! Perhaps something to improve:

[auto build test WARNING on mkp-scsi/for-next]
[also build test WARNING on jejb-scsi/for-next axboe-block/for-next linus/master v6.3-rc4 next-20230328]
[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/Mike-Christie/block-Add-PR-callouts-for-read-keys-and-reservation/20230325-022314
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next
patch link:    https://lore.kernel.org/r/20230324181741.13908-12-michael.christie%40oracle.com
patch subject: [PATCH v5 11/18] nvme: Add pr_ops read_keys support
config: i386-randconfig-s002 (https://download.01.org/0day-ci/archive/20230328/202303281502.U47uzous-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/intel-lab-lkp/linux/commit/fcd2233cf643c550ab3cea2b6102077b1d05b389
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Mike-Christie/block-Add-PR-callouts-for-read-keys-and-reservation/20230325-022314
        git checkout fcd2233cf643c550ab3cea2b6102077b1d05b389
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 olddefconfig
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/nvme/host/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303281502.U47uzous-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/nvme/host/pr.c:165:24: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __le32 [assigned] [usertype] cdw11 @@     got int @@
   drivers/nvme/host/pr.c:165:24: sparse:     expected restricted __le32 [assigned] [usertype] cdw11
   drivers/nvme/host/pr.c:165:24: sparse:     got int
>> drivers/nvme/host/pr.c:171:21: sparse: sparse: restricted __le32 degrades to integer

vim +165 drivers/nvme/host/pr.c

   156	
   157	static int nvme_pr_resv_report(struct block_device *bdev, void *data,
   158			u32 data_len, bool *eds)
   159	{
   160		struct nvme_command c = { };
   161		int ret;
   162	
   163		c.common.opcode = nvme_cmd_resv_report;
   164		c.common.cdw10 = cpu_to_le32(nvme_bytes_to_numd(data_len));
 > 165		c.common.cdw11 = NVME_EXTENDED_DATA_STRUCT;
   166		*eds = true;
   167	
   168	retry:
   169		ret = nvme_send_pr_command(bdev, &c, data, data_len);
   170		if (ret == NVME_SC_HOST_ID_INCONSIST &&
 > 171		    c.common.cdw11 == NVME_EXTENDED_DATA_STRUCT) {
   172			c.common.cdw11 = 0;
   173			*eds = false;
   174			goto retry;
   175		}
   176	
   177		if (ret < 0)
   178			return ret;
   179	
   180		return nvme_sc_to_pr_err(ret);
   181	}
   182	

-- 
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