[pali:cifs 48/48] fs/smb/client/cifssmb.c:2897:27: sparse: sparse: incorrect type in assignment (different base types)

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/pali/linux.git cifs
head:   cc26137de51202e7210b058f6696393f1e006d46
commit: 817f8d87b6285eee3ee97e25a32f2405cd5819a0 [48/48] cifs: Add support for creating reparse points over SMB1
config: x86_64-randconfig-122-20241228 (https://download.01.org/0day-ci/archive/20241228/202412280944.DH91CjjZ-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241228/202412280944.DH91CjjZ-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412280944.DH91CjjZ-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> fs/smb/client/cifssmb.c:2897:27: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __le16 [usertype] ByteCount @@     got restricted __le32 [usertype] @@
   fs/smb/client/cifssmb.c:2897:27: sparse:     expected restricted __le16 [usertype] ByteCount
   fs/smb/client/cifssmb.c:2897:27: sparse:     got restricted __le32 [usertype]

vim +2897 fs/smb/client/cifssmb.c

  2868	
  2869		rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **)&io_req, NULL);
  2870		if (rc)
  2871			goto out_close;
  2872	
  2873		inc_rfc1001_len(io_req, sizeof(io_req->Pad));
  2874	
  2875		io_req_len = be32_to_cpu(io_req->hdr.smb_buf_length) + sizeof(io_req->hdr.smb_buf_length);
  2876	
  2877		/* NT IOCTL response contains one-word long output setup buffer with size of output data. */
  2878		io_req->MaxSetupCount = 1;
  2879		/* NT IOCTL response does not contain output parameters. */
  2880		io_req->MaxParameterCount = cpu_to_le32(0);
  2881		/* FSCTL_SET_REPARSE_POINT response contains empty output data. */
  2882		io_req->MaxDataCount = cpu_to_le32(0);
  2883	
  2884		io_req->TotalParameterCount = cpu_to_le32(0);
  2885		io_req->TotalDataCount = cpu_to_le32(reparse_iov->iov_len);
  2886		io_req->ParameterCount = io_req->TotalParameterCount;
  2887		io_req->ParameterOffset = cpu_to_le32(0);
  2888		io_req->DataCount = io_req->TotalDataCount;
  2889		io_req->DataOffset = cpu_to_le32(offsetof(typeof(*io_req), Data) -
  2890						 sizeof(io_req->hdr.smb_buf_length));
  2891		io_req->SetupCount = 4;
  2892		io_req->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL);
  2893		io_req->FunctionCode = cpu_to_le32(FSCTL_SET_REPARSE_POINT);
  2894		io_req->Fid = fid.netfid;
  2895		io_req->IsFsctl = 1;
  2896		io_req->IsRootFlag = 0;
> 2897		io_req->ByteCount = cpu_to_le32(le32_to_cpu(io_req->DataCount) + sizeof(io_req->Pad));
  2898	
  2899		inc_rfc1001_len(io_req, reparse_iov->iov_len);
  2900	
  2901		in_iov[0].iov_base = (char *)io_req;
  2902		in_iov[0].iov_len = io_req_len;
  2903		in_iov[1] = *reparse_iov;
  2904		rc = SendReceive2(xid, tcon->ses, in_iov, ARRAY_SIZE(in_iov), &buf_type,
  2905				  CIFS_NO_RSP_BUF, &out_iov);
  2906	
  2907		cifs_buf_release(io_req);
  2908	
  2909		if (!rc)
  2910			rc = cifs_get_inode_info(&new, full_path, data, sb, xid, NULL);
  2911	
  2912	out_close:
  2913		CIFSSMBClose(xid, tcon, fid.netfid);
  2914	
  2915		/*
  2916		 * If CREATE was successful but FSCTL_SET_REPARSE_POINT failed then
  2917		 * remove the intermediate object created by CREATE. Otherwise
  2918		 * empty object stay on the server when reparse call failed.
  2919		 */
  2920		if (rc)
  2921			CIFSSMBDelFile(xid, tcon, full_path, cifs_sb, NULL);
  2922	
  2923		return rc ? ERR_PTR(rc) : new;
  2924	}
  2925	

-- 
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