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X-CSE-ConnectionGUID: RuYB8VpgSz+sXIdwpKdXYA== X-CSE-MsgGUID: LTkM/RmqQwWJKBsxHQzPqg== X-IronPort-AV: E=McAfee;i="6800,10657,11923"; a="102252069" X-IronPort-AV: E=Sophos;i="6.27,136,1787036400"; d="scan'208";a="102252069" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Oct 2026 10:09:22 -0700 X-CSE-ConnectionGUID: 6eViVJ1cSYOOpUlp20owcQ== X-CSE-MsgGUID: hXy82DzoR/y0uWSJUX0Ucg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,136,1787036400"; d="scan'208";a="274942994" Received: from lkp-server01.sh.intel.com (HELO 462990a40a85) ([10.239.97.150]) by fmviesa006.fm.intel.com with ESMTP; 02 Oct 2026 10:09:21 -0700 Received: from kbuild by 462990a40a85 with local (Exim 4.98.2) (envelope-from ) id 1xCgl4-00000000TIJ-3PoR; Fri, 02 Oct 2026 17:09:18 +0000 Date: Sat, 03 Oct 2026 01:08:33 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com Subject: drivers/clocksource/timer-mediatek.c:313:21: warning: variable 'clk_bus' set but not used Message-ID: <202610030158.tLq3nt4t-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: :::::: :::::: Manual check reason: "bisect to a FBC not belonging to original linux-review patches: branch: linux-review/Luca-Leonardo-Scorcia/clocksource-drivers-timer-mediatek-Fix-random-crash-at-boot/20261002-091926, commit: 0c8c1bddeb603ee5834db94da982745e97c68119" :::::: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev TO: Luca Leonardo Scorcia CC: 0day robot tree: https://github.com/intel-lab-lkp/linux/commits/Luca-Leonardo-Scorcia/clocksource-drivers-timer-mediatek-Fix-random-crash-at-boot/20261002-091926 head: 0c8c1bddeb603ee5834db94da982745e97c68119 commit: 0c8c1bddeb603ee5834db94da982745e97c68119 clocksource/drivers/timer-mediatek: Request and enable the bus clock date: 10 hours ago :::::: branch date: 10 hours ago :::::: commit date: 10 hours ago config: nios2-randconfig-1001-20261002 (https://download.01.org/0day-ci/archive/20261003/202610030158.tLq3nt4t-lkp@intel.com/config) compiler: nios2-linux-gcc (GCC) 11.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261003/202610030158.tLq3nt4t-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 | Reported-by: kernel test robot | Closes: https://lore.kernel.org/r/202610030158.tLq3nt4t-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/clocksource/timer-mediatek.c: In function 'mtk_gpt_init': >> drivers/clocksource/timer-mediatek.c:313:21: warning: variable 'clk_bus' set but not used [-Wunused-but-set-variable] 313 | struct clk *clk_bus; | ^~~~~~~ vim +/clk_bus +313 drivers/clocksource/timer-mediatek.c e3af677607d9dac drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 309 0c8c1bddeb603ee drivers/clocksource/timer-mediatek.c Luca Leonardo Scorcia 2026-10-02 310 static int mtk_gpt_init(struct platform_device *pdev) a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 311 { 0c8c1bddeb603ee drivers/clocksource/timer-mediatek.c Luca Leonardo Scorcia 2026-10-02 312 struct device_node *node = pdev->dev.of_node; 0c8c1bddeb603ee drivers/clocksource/timer-mediatek.c Luca Leonardo Scorcia 2026-10-02 @313 struct clk *clk_bus; a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 314 int ret; ecb3530dd59ddd5 drivers/clocksource/mtk_timer.c Matthias Brugger 2014-07-18 315 0c8c1bddeb603ee drivers/clocksource/timer-mediatek.c Luca Leonardo Scorcia 2026-10-02 316 clk_bus = devm_clk_get_optional_enabled(&pdev->dev, "bus"); 0c8c1bddeb603ee drivers/clocksource/timer-mediatek.c Luca Leonardo Scorcia 2026-10-02 317 a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 318 to.clkevt.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 319 to.clkevt.set_state_shutdown = mtk_gpt_clkevt_shutdown; a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 320 to.clkevt.set_state_periodic = mtk_gpt_clkevt_set_periodic; a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 321 to.clkevt.set_state_oneshot = mtk_gpt_clkevt_shutdown; a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 322 to.clkevt.tick_resume = mtk_gpt_clkevt_shutdown; a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 323 to.clkevt.set_next_event = mtk_gpt_clkevt_next_event; 75ac5cc2ee6b499 drivers/clocksource/timer-mediatek.c Evan Benn 2021-05-12 324 to.clkevt.suspend = mtk_gpt_suspend; 75ac5cc2ee6b499 drivers/clocksource/timer-mediatek.c Evan Benn 2021-05-12 325 to.clkevt.resume = mtk_gpt_resume; a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 326 to.of_irq.handler = mtk_gpt_interrupt; ecb3530dd59ddd5 drivers/clocksource/mtk_timer.c Matthias Brugger 2014-07-18 327 a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 328 ret = timer_of_init(node, &to); a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 329 if (ret) 41d49e7939de5ec drivers/clocksource/timer-mediatek.c Fabien Parent 2019-09-19 330 return ret; ecb3530dd59ddd5 drivers/clocksource/mtk_timer.c Matthias Brugger 2014-07-18 331 ecb3530dd59ddd5 drivers/clocksource/mtk_timer.c Matthias Brugger 2014-07-18 332 /* Configure clock source */ a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 333 mtk_gpt_setup(&to, TIMER_CLK_SRC, GPT_CTRL_OP_FREERUN); a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 334 clocksource_mmio_init(timer_of_base(&to) + GPT_CNT_REG(TIMER_CLK_SRC), a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 335 node->name, timer_of_rate(&to), 300, 32, a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 336 clocksource_mmio_readl_up); a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 337 gpt_sched_reg = timer_of_base(&to) + GPT_CNT_REG(TIMER_CLK_SRC); a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 338 sched_clock_register(mtk_gpt_read_sched_clock, 32, timer_of_rate(&to)); ecb3530dd59ddd5 drivers/clocksource/mtk_timer.c Matthias Brugger 2014-07-18 339 ecb3530dd59ddd5 drivers/clocksource/mtk_timer.c Matthias Brugger 2014-07-18 340 /* Configure clock event */ a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 341 mtk_gpt_setup(&to, TIMER_CLK_EVT, GPT_CTRL_OP_REPEAT); a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 342 clockevents_config_and_register(&to.clkevt, timer_of_rate(&to), a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 343 TIMER_SYNC_TICKS, 0xffffffff); d4a19eb3b15a4ba drivers/clocksource/mtk_timer.c Matthias Brugger 2015-02-19 344 a0858f937960d24 drivers/clocksource/timer-mediatek.c Stanley Chu 2018-07-06 345 mtk_gpt_enable_irq(&to, TIMER_CLK_EVT); 44a6e9864ca801e drivers/clocksource/timer-mediatek.c Luca Leonardo Scorcia 2026-10-02 346 enable_irq(timer_of_irq(&to)); d4a19eb3b15a4ba drivers/clocksource/mtk_timer.c Matthias Brugger 2015-02-19 347 d64e24ce5fdddd7 drivers/clocksource/mtk_timer.c Daniel Lezcano 2016-05-31 348 return 0; ecb3530dd59ddd5 drivers/clocksource/mtk_timer.c Matthias Brugger 2014-07-18 349 } 322dca3aa6d9da7 drivers/clocksource/timer-mediatek.c Luca Leonardo Scorcia 2026-10-02 350 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki