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X-CSE-ConnectionGUID: ISj9WllQRbS1sq/Z7DsUgw== X-CSE-MsgGUID: HhStT/rDSHOlGqx2FnmY+A== X-IronPort-AV: E=McAfee;i="6800,10657,11913"; a="1303247" X-IronPort-AV: E=Sophos;i="6.27,117,1787036400"; d="scan'208";a="1303247" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa114.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Sep 2026 20:19:40 -0700 X-CSE-ConnectionGUID: 1S3txwr+TWqw2/FEqBun8g== X-CSE-MsgGUID: ttQcR7tOQvWjDBlqbWEgpw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,117,1787036400"; d="scan'208";a="278169569" Received: from igk-lkp-server01.igk.intel.com (HELO 1bbc298b9a73) ([10.211.93.152]) by fmviesa004.fm.intel.com with ESMTP; 22 Sep 2026 20:19:39 -0700 Received: from kbuild by 1bbc298b9a73 with local (Exim 4.98.2) (envelope-from ) id 1x9DWC-000000000Rv-44tO; Wed, 23 Sep 2026 03:19:36 +0000 Date: Wed, 23 Sep 2026 05:18:48 +0200 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: [linux-next:master 8362/8910] drivers/hid/hid-steam.c:557 steam_send_report_id() warn: check sign expansion for '__UNIQUE_ID_x__454' Message-ID: <202609230541.BkD5hphD-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev TO: "Lorenzo Stoakes (ARM)" CC: Andrew Morton CC: Linux Memory Management List tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: a8c591ed6b672915e0be57843f943a2a723aff40 commit: 7ecf3a4b15beabcd17c4a2ab2e97c68d9a29e691 [8362/8910] mm: add mmap action for discontiguous kernel page mapping :::::: branch date: 14 hours ago :::::: commit date: 28 hours ago config: x86_64-randconfig-2200-20260923 (https://download.01.org/0day-ci/archive/20260923/202609230541.BkD5hphD-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 smatch: v0.5.0-9187-g5189e3fb 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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202609230541.BkD5hphD-lkp@intel.com/ smatch warnings: drivers/hid/hid-steam.c:557 steam_send_report_id() warn: check sign expansion for '__UNIQUE_ID_x__454' vim +/__UNIQUE_ID_x__454 +557 drivers/hid/hid-steam.c c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 516 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 517 static int steam_send_report_id(struct steam_device *steam, 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 518 u8 *cmd, int size, u8 report_id) c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 519 { c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 520 struct hid_report *r; c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 521 u8 *buf; c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 522 unsigned int retries = 50; c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 523 int ret; 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 524 u32 len; c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 525 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 526 r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[report_id]; cd11d1a6114bd4 Lee Jones 2022-07-08 527 if (!r) { 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 528 hid_err(steam->hdev, "No HID_FEATURE_REPORT present for ID %u\n", report_id); cd11d1a6114bd4 Lee Jones 2022-07-08 529 return -EINVAL; cd11d1a6114bd4 Lee Jones 2022-07-08 530 } cd11d1a6114bd4 Lee Jones 2022-07-08 531 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 532 len = hid_report_len(r); 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 533 if (len < 64) c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 534 return -EINVAL; c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 535 c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 536 buf = hid_alloc_report_buf(r, GFP_KERNEL); c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 537 if (!buf) c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 538 return -ENOMEM; c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 539 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 540 /* The report ID is always consistent */ 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 541 buf[0] = report_id; c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 542 memcpy(buf + 1, cmd, size); c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 543 de435b770cd949 Vicki Pfau 2026-07-29 544 hid_dbg(steam->hdev, "Sending report %*ph\n", size, cmd); de435b770cd949 Vicki Pfau 2026-07-29 545 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 546 if (!(steam->quirks & STEAM_QUIRK_IBEX)) 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 547 len += 1; 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 548 c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 549 /* c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 550 * Sometimes the wireless controller fails with EPIPE c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 551 * when sending a feature report. 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 552 * Doing a HID_REQ_SET_REPORT and waiting for a while c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 553 * seems to fix that. c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 554 */ c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 555 do { 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 556 ret = hid_hw_raw_request(steam->hdev, report_id, 0a80b4e8ec6a6e Vicki Pfau 2026-08-11 @557 buf, max(size + 1, len), c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 558 HID_FEATURE_REPORT, HID_REQ_SET_REPORT); c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 559 if (ret != -EPIPE) c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 560 break; c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 561 msleep(20); c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 562 } while (--retries); c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 563 c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 564 kfree(buf); cfa66cba6d02ff Vicki Pfau 2026-08-11 565 /* cfa66cba6d02ff Vicki Pfau 2026-08-11 566 * Don't log if the failure is -ENODEV, as this cfa66cba6d02ff Vicki Pfau 2026-08-11 567 * can happen normally on disconnect. cfa66cba6d02ff Vicki Pfau 2026-08-11 568 */ cfa66cba6d02ff Vicki Pfau 2026-08-11 569 if (ret < 0 && ret != -ENODEV) c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 570 hid_err(steam->hdev, "%s: error %d (%*ph)\n", __func__, c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 571 ret, size, cmd); c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 572 return ret; c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 573 } c164d6abf3841f Rodrigo Rivas Costa 2018-04-16 574 :::::: The code at line 557 was first introduced by commit :::::: 0a80b4e8ec6a6e40937c7abdf8fb2ebe6cc7c1e5 HID: steam: Initial 2026 Steam Controller support :::::: TO: Vicki Pfau :::::: CC: Jiri Kosina -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki