CC: [email protected] CC: [email protected] TO: Thomas Gleixner <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.13.y-rt-testing head: 87ca00748cfcc19b46d4622228d2e0e8514d5033 commit: b42b6e6889e21b06cee7a633c0f1b562e5d56eef [197/228] tty/serial/omap: Make the locking RT aware :::::: branch date: 31 hours ago :::::: commit date: 7 days ago config: x86_64-randconfig-s021-20210713 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/commit/?id=b42b6e6889e21b06cee7a633c0f1b562e5d56eef git remote add linux-rt-devel https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git git fetch --no-tags linux-rt-devel linux-5.13.y-rt-testing git checkout b42b6e6889e21b06cee7a633c0f1b562e5d56eef # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/tty/serial/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> sparse warnings: (new ones prefixed by >>) drivers/tty/serial/omap-serial.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/umh.h, include/linux/kmod.h, ...): >> include/linux/spinlock.h:418:9: sparse: sparse: context imbalance in >> 'serial_omap_console_write' - wrong count at exit vim +/serial_omap_console_write +418 include/linux/spinlock.h c2f21ce2e31286 Thomas Gleixner 2009-12-02 415 3490565b633c70 Denys Vlasenko 2015-07-13 416 static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags) c2f21ce2e31286 Thomas Gleixner 2009-12-02 417 { c2f21ce2e31286 Thomas Gleixner 2009-12-02 @418 raw_spin_unlock_irqrestore(&lock->rlock, flags); c2f21ce2e31286 Thomas Gleixner 2009-12-02 419 } c2f21ce2e31286 Thomas Gleixner 2009-12-02 420 :::::: The code at line 418 was first introduced by commit :::::: c2f21ce2e31286a0a32f8da0a7856e9ca1122ef3 locking: Implement new raw_spinlock :::::: TO: Thomas Gleixner <[email protected]> :::::: CC: Thomas Gleixner <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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