CC: kbuild-...@lists.01.org CC: linux-ker...@vger.kernel.org TO: Alexandre Belloni <alexandre.bell...@bootlin.com> CC: Fabio Estevam <feste...@gmail.com>
Hi Alexandre, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1fe5501ba1abf2b7e78295df73675423bd6899a0 commit: 0020868f2a7037e87d6b3b196526de2fb885830d rtc: mxc{,_v2}: enable COMPILE_TEST date: 5 months ago :::::: branch date: 14 hours ago :::::: commit date: 5 months ago config: openrisc-randconfig-s032-20210421 (attached as .config) compiler: or1k-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0020868f2a7037e87d6b3b196526de2fb885830d git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 0020868f2a7037e87d6b3b196526de2fb885830d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=openrisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> sparse warnings: (new ones prefixed by >>) >> drivers/rtc/rtc-mxc_v2.c:115:12: sparse: sparse: context imbalance in >> 'mxc_rtc_lock' - wrong count at exit drivers/rtc/rtc-mxc_v2.c:128:12: sparse: sparse: context imbalance in 'mxc_rtc_unlock' - unexpected unlock vim +/mxc_rtc_lock +115 drivers/rtc/rtc-mxc_v2.c 83c880f79e88cc6 Patrick Bruenn 2017-12-18 110 83c880f79e88cc6 Patrick Bruenn 2017-12-18 111 /* 83c880f79e88cc6 Patrick Bruenn 2017-12-18 112 * Enable clk and aquire spinlock 83c880f79e88cc6 Patrick Bruenn 2017-12-18 113 * @return 0 if successful; non-zero otherwise. 83c880f79e88cc6 Patrick Bruenn 2017-12-18 114 */ 83c880f79e88cc6 Patrick Bruenn 2017-12-18 @115 static int mxc_rtc_lock(struct mxc_rtc_data *const pdata) 83c880f79e88cc6 Patrick Bruenn 2017-12-18 116 { 83c880f79e88cc6 Patrick Bruenn 2017-12-18 117 int ret; 83c880f79e88cc6 Patrick Bruenn 2017-12-18 118 83c880f79e88cc6 Patrick Bruenn 2017-12-18 119 spin_lock_irq(&pdata->lock); 83c880f79e88cc6 Patrick Bruenn 2017-12-18 120 ret = clk_enable(pdata->clk); 83c880f79e88cc6 Patrick Bruenn 2017-12-18 121 if (ret) { 83c880f79e88cc6 Patrick Bruenn 2017-12-18 122 spin_unlock_irq(&pdata->lock); 83c880f79e88cc6 Patrick Bruenn 2017-12-18 123 return ret; 83c880f79e88cc6 Patrick Bruenn 2017-12-18 124 } 83c880f79e88cc6 Patrick Bruenn 2017-12-18 125 return 0; 83c880f79e88cc6 Patrick Bruenn 2017-12-18 126 } 83c880f79e88cc6 Patrick Bruenn 2017-12-18 127 :::::: The code at line 115 was first introduced by commit :::::: 83c880f79e88cc60593f627e612326f5d43db81e rtc: add mxc driver for i.MX53 SRTC :::::: TO: Patrick Bruenn <p.bru...@beckhoff.com> :::::: CC: Alexandre Belloni <alexandre.bell...@free-electrons.com> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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