CC: [email protected]
CC: [email protected]
TO: Nicholas Piggin <[email protected]>
CC: Peter Zijlstra <[email protected]>
CC: "Steven Rostedt (VMware)" <[email protected]>
CC: Thomas Gleixner <[email protected]>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   3650b228f83adda7e5ee532e2b90429c03f7b9ec
commit: 044d0d6de9f50192f9697583504a382347ee95ca lockdep: Only trace IRQ edges
date:   9 weeks ago
:::::: branch date: 12 hours ago
:::::: commit date: 9 weeks ago
config: arc-randconfig-s032-20201026 (attached as .config)
compiler: arceb-elf-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: v0.6.3-56-gc09e8239-dirty
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=044d0d6de9f50192f9697583504a382347ee95ca
        git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 044d0d6de9f50192f9697583504a382347ee95ca
        # 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__' ARCH=arc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>


"sparse warnings: (new ones prefixed by >>)"
   kernel/trace/ring_buffer.c:923:32: sparse: sparse: incorrect type in return 
expression (different base types) @@     expected restricted __poll_t @@     
got int @@
   kernel/trace/ring_buffer.c:923:32: sparse:     expected restricted __poll_t
   kernel/trace/ring_buffer.c:923:32: sparse:     got int
   kernel/trace/ring_buffer.c: note: in included file (through 
arch/arc/include/asm/irqflags.h, include/linux/irqflags.h, 
include/linux/spinlock.h, ...):
>> arch/arc/include/asm/irqflags-arcv2.h:122:19: sparse: sparse: context 
>> imbalance in 'ring_buffer_peek' - different lock contexts for basic block
>> arch/arc/include/asm/irqflags-arcv2.h:122:19: sparse: sparse: context 
>> imbalance in 'ring_buffer_consume' - different lock contexts for basic block
>> arch/arc/include/asm/irqflags-arcv2.h:122:19: sparse: sparse: context 
>> imbalance in 'ring_buffer_empty' - different lock contexts for basic block
>> arch/arc/include/asm/irqflags-arcv2.h:122:19: sparse: sparse: context 
>> imbalance in 'ring_buffer_empty_cpu' - different lock contexts for basic 
>> block

vim +/ring_buffer_peek +122 arch/arc/include/asm/irqflags-arcv2.h

820970a5aa3c98 Vineet Gupta    2015-03-06  118  
820970a5aa3c98 Vineet Gupta    2015-03-06  119  /*
820970a5aa3c98 Vineet Gupta    2015-03-06  120   * Query IRQ state
820970a5aa3c98 Vineet Gupta    2015-03-06  121   */
820970a5aa3c98 Vineet Gupta    2015-03-06 @122  static inline int 
arch_irqs_disabled_flags(unsigned long flags)
820970a5aa3c98 Vineet Gupta    2015-03-06  123  {
d9676fa152c83b Evgeny Voevodin 2016-03-23  124          return !(flags & 
CLRI_STATUS_IE_MASK);
820970a5aa3c98 Vineet Gupta    2015-03-06  125  }
820970a5aa3c98 Vineet Gupta    2015-03-06  126  

:::::: The code at line 122 was first introduced by commit
:::::: 820970a5aa3c98be26e1df64da4b93294d20d4e7 ARCv2: [intc] HS38 core 
interrupt controller

:::::: TO: Vineet Gupta <[email protected]>
:::::: CC: Vineet Gupta <[email protected]>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

Attachment: .config.gz
Description: application/gzip

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