Re: [PATCH v2 01/10] cxl/mbox: Add GET_SUPPORTED_FEATURES mailbox command

From: kernel test robot
Date: Tue Nov 21 2023 - 19:04:34 EST


Hi,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.7-rc2 next-20231121]
[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/shiju-jose-huawei-com/cxl-mbox-Add-GET_SUPPORTED_FEATURES-mailbox-command/20231121-182247
base: linus/master
patch link: https://lore.kernel.org/r/20231121101844.1161-2-shiju.jose%40huawei.com
patch subject: [PATCH v2 01/10] cxl/mbox: Add GET_SUPPORTED_FEATURES mailbox command
config: alpha-randconfig-r112-20231122 (https://download.01.org/0day-ci/archive/20231122/202311220753.mm74Rat7-lkp@xxxxxxxxx/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231122/202311220753.mm74Rat7-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311220753.mm74Rat7-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/cxl/core/mbox.c:1318:31: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned long [usertype] size_out @@ got restricted __le32 [usertype] count @@
drivers/cxl/core/mbox.c:1318:31: sparse: expected unsigned long [usertype] size_out
drivers/cxl/core/mbox.c:1318:31: sparse: got restricted __le32 [usertype] count

vim +1318 drivers/cxl/core/mbox.c

1306
1307 int cxl_get_supported_features(struct cxl_memdev_state *mds,
1308 struct cxl_mbox_get_supp_feats_in *pi,
1309 void *feats_out)
1310 {
1311 struct cxl_mbox_cmd mbox_cmd;
1312 int rc;
1313
1314 mbox_cmd = (struct cxl_mbox_cmd) {
1315 .opcode = CXL_MBOX_OP_GET_SUPPORTED_FEATURES,
1316 .size_in = sizeof(*pi),
1317 .payload_in = pi,
> 1318 .size_out = pi->count,
1319 .payload_out = feats_out,
1320 .min_out = sizeof(struct cxl_mbox_get_supp_feats_out),
1321 };
1322 rc = cxl_internal_send_cmd(mds, &mbox_cmd);
1323 if (rc < 0)
1324 return rc;
1325
1326 return 0;
1327 }
1328 EXPORT_SYMBOL_NS_GPL(cxl_get_supported_features, CXL);
1329

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