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X-CSE-ConnectionGUID: dWBc9CnDQPq7HNZWNz2XZw== X-CSE-MsgGUID: B1JrTgErT7yr7y1FwpqzQw== X-IronPort-AV: E=McAfee;i="6800,10657,11751"; a="86782263" X-IronPort-AV: E=Sophos;i="6.23,164,1770624000"; d="scan'208";a="86782263" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Apr 2026 21:00:38 -0700 X-CSE-ConnectionGUID: n4reuoYRTQOQN8o588+iqw== X-CSE-MsgGUID: knJHYSG2RNiFQKIWY6kfUQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,164,1770624000"; d="scan'208";a="225304375" Received: from lkp-server01.sh.intel.com (HELO d00eb8a6782a) ([10.239.97.150]) by fmviesa008.fm.intel.com with ESMTP; 06 Apr 2026 21:00:36 -0700 Received: from kbuild by d00eb8a6782a with local (Exim 4.98.2) (envelope-from ) id 1w9xc9-0000000007T-2fsj; Tue, 07 Apr 2026 04:00:33 +0000 Date: Tue, 07 Apr 2026 12:00:33 +0800 From: kernel test robot To: Ajay Singh Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Kalle Valo Subject: drivers/net/wireless/microchip/wilc1000/wlan.c:620:34: warning: variable 'to_host_from_fw_bit' set but not used Message-ID: <202604052006.fns84vWs-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Hi Ajay, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3aae9383f42f687221c011d7ee87529398e826b3 commit: 5bb9de8bcb18c38ea089a287b77944ef8ee71abd wilc1000: configure registers to handle chip wakeup sequence date: 4 years, 6 months ago config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20260405/202604052006.fns84vWs-lkp@intel.com/config) compiler: mips-linux-gcc (GCC) 15.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260405/202604052006.fns84vWs-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: 5bb9de8bcb18 ("wilc1000: configure registers to handle chip wakeup sequence") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202604052006.fns84vWs-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/net/wireless/microchip/wilc1000/wlan.c: In function 'chip_wakeup': >> drivers/net/wireless/microchip/wilc1000/wlan.c:620:34: warning: variable 'to_host_from_fw_bit' set but not used [-Wunused-but-set-variable] 620 | u32 to_host_from_fw_reg, to_host_from_fw_bit; | ^~~~~~~~~~~~~~~~~~~ >> drivers/net/wireless/microchip/wilc1000/wlan.c:620:13: warning: variable 'to_host_from_fw_reg' set but not used [-Wunused-but-set-variable] 620 | u32 to_host_from_fw_reg, to_host_from_fw_bit; | ^~~~~~~~~~~~~~~~~~~ vim +/to_host_from_fw_bit +620 drivers/net/wireless/microchip/wilc1000/wlan.c 613 614 void chip_wakeup(struct wilc *wilc) 615 { 616 u32 ret = 0; 617 u32 clk_status_val = 0, trials = 0; 618 u32 wakeup_reg, wakeup_bit; 619 u32 clk_status_reg, clk_status_bit; > 620 u32 to_host_from_fw_reg, to_host_from_fw_bit; 621 u32 from_host_to_fw_reg, from_host_to_fw_bit; 622 const struct wilc_hif_func *hif_func = wilc->hif_func; 623 624 if (wilc->io_type == WILC_HIF_SDIO) { 625 wakeup_reg = WILC_SDIO_WAKEUP_REG; 626 wakeup_bit = WILC_SDIO_WAKEUP_BIT; 627 clk_status_reg = WILC_SDIO_CLK_STATUS_REG; 628 clk_status_bit = WILC_SDIO_CLK_STATUS_BIT; 629 from_host_to_fw_reg = WILC_SDIO_HOST_TO_FW_REG; 630 from_host_to_fw_bit = WILC_SDIO_HOST_TO_FW_BIT; 631 to_host_from_fw_reg = WILC_SDIO_FW_TO_HOST_REG; 632 to_host_from_fw_bit = WILC_SDIO_FW_TO_HOST_BIT; 633 } else { 634 wakeup_reg = WILC_SPI_WAKEUP_REG; 635 wakeup_bit = WILC_SPI_WAKEUP_BIT; 636 clk_status_reg = WILC_SPI_CLK_STATUS_REG; 637 clk_status_bit = WILC_SPI_CLK_STATUS_BIT; 638 from_host_to_fw_reg = WILC_SPI_HOST_TO_FW_REG; 639 from_host_to_fw_bit = WILC_SPI_HOST_TO_FW_BIT; 640 to_host_from_fw_reg = WILC_SPI_FW_TO_HOST_REG; 641 to_host_from_fw_bit = WILC_SPI_FW_TO_HOST_BIT; 642 } 643 644 /* indicate host wakeup */ 645 ret = hif_func->hif_write_reg(wilc, from_host_to_fw_reg, 646 from_host_to_fw_bit); 647 if (ret) 648 return; 649 650 /* Set wake-up bit */ 651 ret = hif_func->hif_write_reg(wilc, wakeup_reg, 652 wakeup_bit); 653 if (ret) 654 return; 655 656 while (trials < WAKE_UP_TRIAL_RETRY) { 657 ret = hif_func->hif_read_reg(wilc, clk_status_reg, 658 &clk_status_val); 659 if (ret) { 660 pr_err("Bus error %d %x\n", ret, clk_status_val); 661 return; 662 } 663 if (clk_status_val & clk_status_bit) 664 break; 665 666 trials++; 667 } 668 if (trials >= WAKE_UP_TRIAL_RETRY) { 669 pr_err("Failed to wake-up the chip\n"); 670 return; 671 } 672 } 673 EXPORT_SYMBOL_GPL(chip_wakeup); 674 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki