From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: include/linux/spinlock.h:408:9: sparse: sparse: context imbalance in 'ks8851_unlock_par' - unexpected unlock
Date: Sat, 28 Nov 2020 13:13:10 +0800 [thread overview]
Message-ID: <202011281302.wIJPCBAH-lkp@intel.com> (raw)
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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Marek Vasut <marex@denx.de>
CC: Andrew Lunn <andrew@lunn.ch>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c84e1efae022071a4fcf9f1899bf71777c49943a
commit: 797047f875b5463719cc70ba213eb691d453c946 net: ks8851: Implement Parallel bus operations
date: 6 months ago
:::::: branch date: 6 hours ago
:::::: commit date: 6 months ago
config: x86_64-randconfig-s032-20201128 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-151-g540c2c4b-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=797047f875b5463719cc70ba213eb691d453c946
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 797047f875b5463719cc70ba213eb691d453c946
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
"sparse warnings: (new ones prefixed by >>)"
drivers/net/ethernet/micrel/ks8851_par.c:64:13: sparse: sparse: context imbalance in 'ks8851_lock_par' - wrong count at exit
drivers/net/ethernet/micrel/ks8851_par.c: note: in included file (through include/linux/seqlock.h, include/linux/time.h, include/linux/ktime.h, ...):
>> include/linux/spinlock.h:408:9: sparse: sparse: context imbalance in 'ks8851_unlock_par' - unexpected unlock
vim +/ks8851_unlock_par +408 include/linux/spinlock.h
c2f21ce2e31286a Thomas Gleixner 2009-12-02 405
3490565b633c705 Denys Vlasenko 2015-07-13 406 static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
c2f21ce2e31286a Thomas Gleixner 2009-12-02 407 {
c2f21ce2e31286a Thomas Gleixner 2009-12-02 @408 raw_spin_unlock_irqrestore(&lock->rlock, flags);
c2f21ce2e31286a Thomas Gleixner 2009-12-02 409 }
c2f21ce2e31286a Thomas Gleixner 2009-12-02 410
:::::: The code at line 408 was first introduced by commit
:::::: c2f21ce2e31286a0a32f8da0a7856e9ca1122ef3 locking: Implement new raw_spinlock
:::::: TO: Thomas Gleixner <tglx@linutronix.de>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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next reply other threads:[~2020-11-28 5:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-28 5:13 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2020-10-27 10:53 include/linux/spinlock.h:408:9: sparse: sparse: context imbalance in 'ks8851_unlock_par' - unexpected unlock kernel test robot
2020-10-03 19:06 kernel test robot
2020-07-30 12:13 kernel test robot
2020-07-30 12:13 ` kernel test robot
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