Messages in this thread | | | Date | Tue, 10 Aug 2021 11:10:22 +0800 | From | kernel test robot <> | Subject | [cxl-cxl:pending 10/11] drivers/cxl/pci.c:1302:34: sparse: sparse: cast to restricted __le64 |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git pending head: 427832674f6e2413c21ca2271ec945a720608ff2 commit: f2e82407d7df984ef4369bd9a8cf749991db87a0 [10/11] cxl/mem: Account for partitionable space in ram/pmem ranges config: i386-randconfig-s002-20210809 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-348-gf0e6938b-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git/commit/?id=f2e82407d7df984ef4369bd9a8cf749991db87a0 git remote add cxl-cxl https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git git fetch --no-tags cxl-cxl pending git checkout f2e82407d7df984ef4369bd9a8cf749991db87a0 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/cxl/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>) >> drivers/cxl/pci.c:1302:34: sparse: sparse: cast to restricted __le64 drivers/cxl/pci.c:1303:36: sparse: sparse: cast to restricted __le64 drivers/cxl/pci.c:1304:32: sparse: sparse: cast to restricted __le64 drivers/cxl/pci.c:1305:34: sparse: sparse: cast to restricted __le64
vim +1302 drivers/cxl/pci.c
1265 1266 /** 1267 * cxl_mem_get_partition_info - Get partition info 1268 * @cxlm: The device to act on 1269 * @active_volatile_bytes: returned active volatile capacity; in bytes 1270 * @active_persistent_bytes: returned active persistent capacity; in bytes 1271 * @next_volatile_bytes: return next volatile capacity; in bytes 1272 * @next_persistent_bytes: return next persistent capacity; in bytes 1273 * 1274 * Retrieve the current partition info for the device specified. The active 1275 * values are the current capacity in bytes. If not 0, the 'next' values are 1276 * the pending values, in bytes, which take affect on next cold reset. 1277 * 1278 * Return: 0 if no error: or the result of the mailbox command. 1279 * 1280 * See CXL @8.2.9.5.2.1 Get Partition Info 1281 */ 1282 static int cxl_mem_get_partition_info(struct cxl_mem *cxlm, 1283 u64 *active_volatile_bytes, 1284 u64 *active_persistent_bytes, 1285 u64 *next_volatile_bytes, 1286 u64 *next_persistent_bytes) 1287 { 1288 struct cxl_mbox_get_partition_info { 1289 u64 active_volatile_cap; 1290 u64 active_persistent_cap; 1291 u64 next_volatile_cap; 1292 u64 next_persistent_cap; 1293 } __packed pi; 1294 int rc; 1295 1296 rc = cxl_mem_mbox_send_cmd(cxlm, CXL_MBOX_OP_GET_PARTITION_INFO, 1297 NULL, 0, &pi, sizeof(pi)); 1298 1299 if (rc) 1300 return rc; 1301 > 1302 *active_volatile_bytes = le64_to_cpu(pi.active_volatile_cap); 1303 *active_persistent_bytes = le64_to_cpu(pi.active_persistent_cap); 1304 *next_volatile_bytes = le64_to_cpu(pi.next_volatile_cap); 1305 *next_persistent_bytes = le64_to_cpu(pi.next_volatile_cap); 1306 1307 *active_volatile_bytes *= CXL_CAPACITY_MULTIPLIER; 1308 *active_persistent_bytes *= CXL_CAPACITY_MULTIPLIER; 1309 *next_volatile_bytes *= CXL_CAPACITY_MULTIPLIER; 1310 *next_persistent_bytes *= CXL_CAPACITY_MULTIPLIER; 1311 1312 return 0; 1313 } 1314
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