Re: [PATCH v3 01/11] cxl/mbox: Add GET_SUPPORTED_FEATURES mailbox command

From: kernel test robot
Date: Fri Nov 24 2023 - 08:22:23 EST


Hi,

kernel test robot noticed the following build warnings:

[auto build test WARNING on krzk-mem-ctrl/for-next]
[also build test WARNING on linus/master v6.7-rc2 next-20231124]
[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/20231124-014622
base: https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl.git for-next
patch link: https://lore.kernel.org/r/20231123174355.1176-2-shiju.jose%40huawei.com
patch subject: [PATCH v3 01/11] cxl/mbox: Add GET_SUPPORTED_FEATURES mailbox command
config: i386-randconfig-061-20231124 (https://download.01.org/0day-ci/archive/20231124/202311241526.R8n6AibH-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231124/202311241526.R8n6AibH-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/202311241526.R8n6AibH-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/cxl/core/mbox.c:1317:30: sparse: sparse: cast from restricted __le32

vim +1317 drivers/cxl/core/mbox.c

1305
1306 int cxl_get_supported_features(struct cxl_memdev_state *mds,
1307 struct cxl_mbox_get_supp_feats_in *pi,
1308 void *feats_out)
1309 {
1310 struct cxl_mbox_cmd mbox_cmd;
1311 int rc;
1312
1313 mbox_cmd = (struct cxl_mbox_cmd) {
1314 .opcode = CXL_MBOX_OP_GET_SUPPORTED_FEATURES,
1315 .size_in = sizeof(*pi),
1316 .payload_in = pi,
> 1317 .size_out = (size_t)pi->count,
1318 .payload_out = feats_out,
1319 .min_out = sizeof(struct cxl_mbox_get_supp_feats_out),
1320 };
1321 rc = cxl_internal_send_cmd(mds, &mbox_cmd);
1322 if (rc < 0)
1323 return rc;
1324
1325 return 0;
1326 }
1327 EXPORT_SYMBOL_NS_GPL(cxl_get_supported_features, CXL);
1328

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