From: kernel test robot <lkp@intel.com>
To: Sudeep Holla <sudeep.holla@arm.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Guenter Roeck <linux@roeck-us.net>
Subject: drivers/hwmon/xgene-hwmon.c:540:38: sparse: sparse: incorrect type in argument 1 (different address spaces)
Date: Thu, 30 Apr 2026 23:49:18 +0800 [thread overview]
Message-ID: <202604302337.B8E9w0uX-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: e75a43c7cec459a07d91ed17de4de13ede2b7758
commit: 80fcd1e7f5c7009fa1c64737df100cc304c19c1f hwmon: (xgene-hwmon) Simplify PCC shared memory region handling
date: 1 year ago
config: x86_64-randconfig-123-20260430 (https://download.01.org/0day-ci/archive/20260430/202604302337.B8E9w0uX-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260430/202604302337.B8E9w0uX-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
| Fixes: 80fcd1e7f5c7 ("hwmon: (xgene-hwmon) Simplify PCC shared memory region handling")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604302337.B8E9w0uX-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
drivers/hwmon/xgene-hwmon.c:116:15: sparse: sparse: cast to restricted __le16
drivers/hwmon/xgene-hwmon.c:119:9: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short volatile @@ got restricted __le16 [usertype] @@
drivers/hwmon/xgene-hwmon.c:119:9: sparse: expected unsigned short volatile
drivers/hwmon/xgene-hwmon.c:119:9: sparse: got restricted __le16 [usertype]
drivers/hwmon/xgene-hwmon.c:128:21: sparse: sparse: cast removes address space '__iomem' of expression
drivers/hwmon/xgene-hwmon.c:137:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/hwmon/xgene-hwmon.c:137:9: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int volatile @@ got restricted __le32 [usertype] @@
drivers/hwmon/xgene-hwmon.c:137:9: sparse: expected unsigned int volatile
drivers/hwmon/xgene-hwmon.c:137:9: sparse: got restricted __le32 [usertype]
drivers/hwmon/xgene-hwmon.c:141:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/hwmon/xgene-hwmon.c:141:9: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short volatile @@ got restricted __le16 [usertype] @@
drivers/hwmon/xgene-hwmon.c:141:9: sparse: expected unsigned short volatile
drivers/hwmon/xgene-hwmon.c:141:9: sparse: got restricted __le16 [usertype]
drivers/hwmon/xgene-hwmon.c:145:15: sparse: sparse: cast removes address space '__iomem' of expression
drivers/hwmon/xgene-hwmon.c:145:15: sparse: sparse: cast to restricted __le16
drivers/hwmon/xgene-hwmon.c:147:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/hwmon/xgene-hwmon.c:147:9: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short volatile @@ got restricted __le16 [usertype] @@
drivers/hwmon/xgene-hwmon.c:147:9: sparse: expected unsigned short volatile
drivers/hwmon/xgene-hwmon.c:147:9: sparse: got restricted __le16 [usertype]
drivers/hwmon/xgene-hwmon.c:151:17: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int volatile @@ got restricted __le32 [usertype] @@
drivers/hwmon/xgene-hwmon.c:151:17: sparse: expected unsigned int volatile
drivers/hwmon/xgene-hwmon.c:151:17: sparse: got restricted __le32 [usertype]
drivers/hwmon/xgene-hwmon.c:538:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *msg @@ got struct acpi_pcct_shared_memory [noderef] __iomem * @@
drivers/hwmon/xgene-hwmon.c:538:13: sparse: expected void *msg
drivers/hwmon/xgene-hwmon.c:538:13: sparse: got struct acpi_pcct_shared_memory [noderef] __iomem *
>> drivers/hwmon/xgene-hwmon.c:540:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned short [usertype] *addr @@ got unsigned short [noderef] __iomem * @@
drivers/hwmon/xgene-hwmon.c:540:38: sparse: expected unsigned short [usertype] *addr
drivers/hwmon/xgene-hwmon.c:540:38: sparse: got unsigned short [noderef] __iomem *
drivers/hwmon/xgene-hwmon.c:562:45: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned short [usertype] *addr @@ got unsigned short [noderef] __iomem * @@
drivers/hwmon/xgene-hwmon.c:562:45: sparse: expected unsigned short [usertype] *addr
drivers/hwmon/xgene-hwmon.c:562:45: sparse: got unsigned short [noderef] __iomem *
vim +540 drivers/hwmon/xgene-hwmon.c
ed42cfa881e1d8d hotran 2016-07-21 518
ed42cfa881e1d8d hotran 2016-07-21 519 /*
ed42cfa881e1d8d hotran 2016-07-21 520 * This function is called when the PCC Mailbox received a message
ed42cfa881e1d8d hotran 2016-07-21 521 */
ed42cfa881e1d8d hotran 2016-07-21 522 static void xgene_hwmon_pcc_rx_cb(struct mbox_client *cl, void *msg)
ed42cfa881e1d8d hotran 2016-07-21 523 {
ed42cfa881e1d8d hotran 2016-07-21 524 struct xgene_hwmon_dev *ctx = to_xgene_hwmon_dev(cl);
80fcd1e7f5c7009 Sudeep Holla 2025-04-11 525 struct acpi_pcct_shared_memory __iomem *generic_comm_base =
80fcd1e7f5c7009 Sudeep Holla 2025-04-11 526 ctx->pcc_chan->shmem;
ed42cfa881e1d8d hotran 2016-07-21 527 struct slimpro_resp_msg amsg;
ed42cfa881e1d8d hotran 2016-07-21 528
2ca492e22cb70a0 hotran 2016-09-08 529 /*
2ca492e22cb70a0 hotran 2016-09-08 530 * While the driver registers with the mailbox framework, an interrupt
2ca492e22cb70a0 hotran 2016-09-08 531 * can be pending before the probe function completes its
2ca492e22cb70a0 hotran 2016-09-08 532 * initialization. If such condition occurs, just queue up the message
2ca492e22cb70a0 hotran 2016-09-08 533 * as the driver is not ready for servicing the callback.
2ca492e22cb70a0 hotran 2016-09-08 534 */
2ca492e22cb70a0 hotran 2016-09-08 535 if (xgene_hwmon_rx_ready(ctx, &amsg) < 0)
2ca492e22cb70a0 hotran 2016-09-08 536 return;
2ca492e22cb70a0 hotran 2016-09-08 537
ed42cfa881e1d8d hotran 2016-07-21 538 msg = generic_comm_base + 1;
ed42cfa881e1d8d hotran 2016-07-21 539 /* Check if platform sends interrupt */
ed42cfa881e1d8d hotran 2016-07-21 @540 if (!xgene_word_tst_and_clr(&generic_comm_base->status,
2cf39b806be7466 Sudeep Holla 2023-09-27 541 PCC_STATUS_SCI_DOORBELL))
ed42cfa881e1d8d hotran 2016-07-21 542 return;
ed42cfa881e1d8d hotran 2016-07-21 543
ed42cfa881e1d8d hotran 2016-07-21 544 /*
ed42cfa881e1d8d hotran 2016-07-21 545 * Response message format:
ed42cfa881e1d8d hotran 2016-07-21 546 * msg[0] is the return code of the operation
ed42cfa881e1d8d hotran 2016-07-21 547 * msg[1] is the first parameter word
ed42cfa881e1d8d hotran 2016-07-21 548 * msg[2] is the second parameter word
ed42cfa881e1d8d hotran 2016-07-21 549 *
ed42cfa881e1d8d hotran 2016-07-21 550 * As message only supports dword size, just assign it.
ed42cfa881e1d8d hotran 2016-07-21 551 */
ed42cfa881e1d8d hotran 2016-07-21 552
ed42cfa881e1d8d hotran 2016-07-21 553 /* Check for sync query */
ed42cfa881e1d8d hotran 2016-07-21 554 if (ctx->resp_pending &&
ed42cfa881e1d8d hotran 2016-07-21 555 ((MSG_TYPE(((u32 *)msg)[0]) == MSG_TYPE_ERR) ||
ed42cfa881e1d8d hotran 2016-07-21 556 (MSG_TYPE(((u32 *)msg)[0]) == MSG_TYPE_DBG &&
ed42cfa881e1d8d hotran 2016-07-21 557 MSG_SUBTYPE(((u32 *)msg)[0]) == DBG_SUBTYPE_SENSOR_READ) ||
ed42cfa881e1d8d hotran 2016-07-21 558 (MSG_TYPE(((u32 *)msg)[0]) == MSG_TYPE_PWRMGMT &&
ed42cfa881e1d8d hotran 2016-07-21 559 MSG_SUBTYPE(((u32 *)msg)[0]) == PWRMGMT_SUBTYPE_TPC &&
ed42cfa881e1d8d hotran 2016-07-21 560 TPC_CMD(((u32 *)msg)[0]) == TPC_ALARM))) {
ed42cfa881e1d8d hotran 2016-07-21 561 /* Check if platform completes command */
ed42cfa881e1d8d hotran 2016-07-21 562 if (xgene_word_tst_and_clr(&generic_comm_base->status,
2cf39b806be7466 Sudeep Holla 2023-09-27 563 PCC_STATUS_CMD_COMPLETE)) {
ed42cfa881e1d8d hotran 2016-07-21 564 ctx->sync_msg.msg = ((u32 *)msg)[0];
ed42cfa881e1d8d hotran 2016-07-21 565 ctx->sync_msg.param1 = ((u32 *)msg)[1];
ed42cfa881e1d8d hotran 2016-07-21 566 ctx->sync_msg.param2 = ((u32 *)msg)[2];
ed42cfa881e1d8d hotran 2016-07-21 567
ed42cfa881e1d8d hotran 2016-07-21 568 /* Operation waiting for response */
ed42cfa881e1d8d hotran 2016-07-21 569 complete(&ctx->rd_complete);
ed42cfa881e1d8d hotran 2016-07-21 570
ed42cfa881e1d8d hotran 2016-07-21 571 return;
ed42cfa881e1d8d hotran 2016-07-21 572 }
ed42cfa881e1d8d hotran 2016-07-21 573 }
ed42cfa881e1d8d hotran 2016-07-21 574
ed42cfa881e1d8d hotran 2016-07-21 575 /*
ed42cfa881e1d8d hotran 2016-07-21 576 * Platform notifies interrupt to OSPM.
ed42cfa881e1d8d hotran 2016-07-21 577 * OPSM schedules a consumer command to get this information
ed42cfa881e1d8d hotran 2016-07-21 578 * in a workqueue. Platform must wait until OSPM has issued
ed42cfa881e1d8d hotran 2016-07-21 579 * a consumer command that serves this notification.
ed42cfa881e1d8d hotran 2016-07-21 580 */
ed42cfa881e1d8d hotran 2016-07-21 581
ed42cfa881e1d8d hotran 2016-07-21 582 /* Enqueue to the FIFO */
ed42cfa881e1d8d hotran 2016-07-21 583 kfifo_in_spinlocked(&ctx->async_msg_fifo, &amsg,
ed42cfa881e1d8d hotran 2016-07-21 584 sizeof(struct slimpro_resp_msg), &ctx->kfifo_lock);
ed42cfa881e1d8d hotran 2016-07-21 585 /* Schedule the bottom handler */
ed42cfa881e1d8d hotran 2016-07-21 586 schedule_work(&ctx->workq);
ed42cfa881e1d8d hotran 2016-07-21 587 }
ed42cfa881e1d8d hotran 2016-07-21 588
:::::: The code at line 540 was first introduced by commit
:::::: ed42cfa881e1d8d9603b7cb872199e3c8e0d1b19 hwmon: Add xgene hwmon driver
:::::: TO: hotran <hotran@apm.com>
:::::: CC: Guenter Roeck <linux@roeck-us.net>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2026-04-30 15:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-30 15:49 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-05-01 7:37 drivers/hwmon/xgene-hwmon.c:540:38: sparse: sparse: incorrect type in argument 1 (different address spaces) kernel test robot
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