Messages in this thread | | | Date | Fri, 24 Jul 2020 10:57:34 +0800 | From | kernel test robot <> | Subject | Re: [PATCH 2/2] lockdep: warn on redundant or incorrect irq state changes |
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Hi Nicholas,
I love your patch! Yet something to improve:
[auto build test ERROR on linux/master] [also build test ERROR on powerpc/next linus/master v5.8-rc6] [cannot apply to tip/locking/core next-20200723] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Nicholas-Piggin/lockdep-improve-current-hard-soft-irqs_enabled-synchronisation-with-actual-irq-state/20200723-185938 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 9ebcfadb0610322ac537dd7aa5d9cbc2b2894c68 config: x86_64-randconfig-a002-20200723 (attached as .config) compiler: gcc-9 (Debian 9.3.0-14) 9.3.0 reproduce (this is a W=1 build): # save the attached .config to linux build tree make W=1 ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
kernel/locking/lockdep.c: In function 'lockdep_init': >> kernel/locking/lockdep.c:5673:9: error: 'struct task_struct' has no member named 'hardirqs_enabled' 5673 | current->hardirqs_enabled = 1; | ^~ >> kernel/locking/lockdep.c:5674:9: error: 'struct task_struct' has no member named 'softirqs_enabled' 5674 | current->softirqs_enabled = 1; | ^~ In file included from kernel/locking/lockdep.c:60: At top level: kernel/locking/lockdep_internals.h:64:28: warning: 'LOCKF_USED_IN_IRQ_READ' defined but not used [-Wunused-const-variable=] 64 | static const unsigned long LOCKF_USED_IN_IRQ_READ = | ^~~~~~~~~~~~~~~~~~~~~~ In file included from kernel/locking/lockdep.c:60: kernel/locking/lockdep_internals.h:58:28: warning: 'LOCKF_ENABLED_IRQ_READ' defined but not used [-Wunused-const-variable=] 58 | static const unsigned long LOCKF_ENABLED_IRQ_READ = | ^~~~~~~~~~~~~~~~~~~~~~ In file included from kernel/locking/lockdep.c:60: kernel/locking/lockdep_internals.h:52:28: warning: 'LOCKF_USED_IN_IRQ' defined but not used [-Wunused-const-variable=] 52 | static const unsigned long LOCKF_USED_IN_IRQ = | ^~~~~~~~~~~~~~~~~ In file included from kernel/locking/lockdep.c:60: kernel/locking/lockdep_internals.h:46:28: warning: 'LOCKF_ENABLED_IRQ' defined but not used [-Wunused-const-variable=] 46 | static const unsigned long LOCKF_ENABLED_IRQ = | ^~~~~~~~~~~~~~~~~
vim +5673 kernel/locking/lockdep.c
5667 5668 printk(" per task-struct memory footprint: %zu bytes\n", 5669 sizeof(((struct task_struct *)NULL)->held_locks)); 5670 5671 WARN_ON(irqs_disabled()); 5672 > 5673 current->hardirqs_enabled = 1; > 5674 current->softirqs_enabled = 1; 5675 } 5676
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