From: kbuild test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: [linux-stable-rc:linux-4.19.y 7762/7788] include/linux/spinlock.h:384:9: sparse: sparse: context imbalance in 'flush_end_io' - unexpected unlock
Date: Fri, 04 Oct 2019 10:20:35 +0800 [thread overview]
Message-ID: <201910041029.2z7vUpIM%lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
head: 45830aebf3fc94937285ed325fdb97043f6b6108
commit: 9afbbbbab3cd79e3aa14edd4c6269e89eab79343 [7762/7788] block: fix null pointer dereference in blk_mq_rq_timed_out()
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-rc1-7-g2b96cd8-dirty
git checkout 9afbbbbab3cd79e3aa14edd4c6269e89eab79343
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> include/linux/spinlock.h:384:9: sparse: sparse: context imbalance in 'flush_end_io' - unexpected unlock
vim +/flush_end_io +384 include/linux/spinlock.h
c2f21ce2e31286 Thomas Gleixner 2009-12-02 381
3490565b633c70 Denys Vlasenko 2015-07-13 382 static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
c2f21ce2e31286 Thomas Gleixner 2009-12-02 383 {
c2f21ce2e31286 Thomas Gleixner 2009-12-02 @384 raw_spin_unlock_irqrestore(&lock->rlock, flags);
c2f21ce2e31286 Thomas Gleixner 2009-12-02 385 }
c2f21ce2e31286 Thomas Gleixner 2009-12-02 386
:::::: The code at line 384 was first introduced by commit
:::::: c2f21ce2e31286a0a32f8da0a7856e9ca1122ef3 locking: Implement new raw_spinlock
:::::: TO: Thomas Gleixner <tglx@linutronix.de>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>
---
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https://lists.01.org/pipermail/kbuild-all Intel Corporation
next reply other threads:[~2019-10-04 2:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-04 2:20 kbuild test robot [this message]
[not found] <d9eb220f-517f-6f19-6423-7399153428c9@kernel.dk>
2019-10-04 8:03 ` [linux-stable-rc:linux-4.19.y 7762/7788] include/linux/spinlock.h:384:9: sparse: sparse: context imbalance in 'flush_end_io' - unexpected unlock Greg Kroah-Hartman
2019-10-09 9:20 ` Rong Chen
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