tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   469a89fd3bb73bb2eea628da2b3e0f695f80b7ce
commit: 6ff265fc5ef660499e0edc4641647e99eed3f519 [1863/3037] scsi: ufs: core: bsg: Add advanced RPMB support in ufs_bsg
config: m68k-randconfig-s042-20230106
compiler: m68k-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=6ff265fc5ef660499e0edc4641647e99eed3f519
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 6ff265fc5ef660499e0edc4641647e99eed3f519
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=m68k SHELL=/bin/bash drivers/nvmem/ drivers/ufs/core/

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

sparse warnings: (new ones prefixed by >>)
>> drivers/ufs/core/ufs_bsg.c:91:25: sparse: sparse: cast to restricted __be16

vim +91 drivers/ufs/core/ufs_bsg.c

    71	
    72	static int ufs_bsg_exec_advanced_rpmb_req(struct ufs_hba *hba, struct bsg_job *job)
    73	{
    74		struct ufs_rpmb_request *rpmb_request = job->request;
    75		struct ufs_rpmb_reply *rpmb_reply = job->reply;
    76		struct bsg_buffer *payload = NULL;
    77		enum dma_data_direction dir;
    78		struct scatterlist *sg_list;
    79		int rpmb_req_type;
    80		int sg_cnt;
    81		int ret;
    82		int data_len;
    83	
    84		if (hba->ufs_version < ufshci_version(4, 0) || !hba->dev_info.b_advanced_rpmb_en ||
    85		    !(hba->capabilities & MASK_EHSLUTRD_SUPPORTED))
    86			return -EINVAL;
    87	
    88		if (rpmb_request->ehs_req.length != 2 || rpmb_request->ehs_req.ehs_type != 1)
    89			return -EINVAL;
    90	
  > 91		rpmb_req_type = be16_to_cpu(rpmb_request->ehs_req.meta.req_resp_type);
    92	
    93		switch (rpmb_req_type) {
    94		case UFS_RPMB_WRITE_KEY:
    95		case UFS_RPMB_READ_CNT:
    96		case UFS_RPMB_PURGE_ENABLE:
    97			dir = DMA_NONE;
    98			break;
    99		case UFS_RPMB_WRITE:
   100		case UFS_RPMB_SEC_CONF_WRITE:
   101			dir = DMA_TO_DEVICE;
   102			break;
   103		case UFS_RPMB_READ:
   104		case UFS_RPMB_SEC_CONF_READ:
   105		case UFS_RPMB_PURGE_STATUS_READ:
   106			dir = DMA_FROM_DEVICE;
   107			break;
   108		default:
   109			return -EINVAL;
   110		}
   111	
   112		if (dir != DMA_NONE) {
   113			payload = &job->request_payload;
   114			if (!payload || !payload->payload_len || !payload->sg_cnt)
   115				return -EINVAL;
   116	
   117			sg_cnt = dma_map_sg(hba->host->dma_dev, payload->sg_list, payload->sg_cnt, dir);
   118			if (unlikely(!sg_cnt))
   119				return -ENOMEM;
   120			sg_list = payload->sg_list;
   121			data_len = payload->payload_len;
   122		}
   123	
   124		ret = ufshcd_advanced_rpmb_req_handler(hba, &rpmb_request->bsg_request.upiu_req,
   125					   &rpmb_reply->bsg_reply.upiu_rsp, &rpmb_request->ehs_req,
   126					   &rpmb_reply->ehs_rsp, sg_cnt, sg_list, dir);
   127	
   128		if (dir != DMA_NONE) {
   129			dma_unmap_sg(hba->host->dma_dev, payload->sg_list, payload->sg_cnt, dir);
   130	
   131			if (!ret)
   132				rpmb_reply->bsg_reply.reply_payload_rcv_len = data_len;
   133		}
   134	
   135		return ret;
   136	}
   137	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests