linux-kernel - arch/riscv/include/asm/atomic.h:317 arch_atomic_dec_if

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Message-ID: <202306292044.M7rvGInB-lkp@intel.com>
Date:   Thu, 29 Jun 2023 21:06:45 +0800
From:   kernel test robot <lkp@...el.com>
To:     Guo Ren <guoren@...ux.alibaba.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Palmer Dabbelt <palmer@...osinc.com>
Subject: arch/riscv/include/asm/atomic.h:317 arch_atomic_dec_if_positive()
 warn: inconsistent indenting

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   3a8a670eeeaa40d87bd38a587438952741980c18
commit: 1d7f6932c522ea95668e14265175ce3d753d0c24 riscv: atomic: Optimize dec_if_positive functions
date:   1 year, 1 month ago
config: riscv-randconfig-m031-20230629 (https://download.01.org/0day-ci/archive/20230629/202306292044.M7rvGInB-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230629/202306292044.M7rvGInB-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306292044.M7rvGInB-lkp@intel.com/

smatch warnings:
arch/riscv/include/asm/atomic.h:317 arch_atomic_dec_if_positive() warn: inconsistent indenting

vim +317 arch/riscv/include/asm/atomic.h

fab957c11efe2f Palmer Dabbelt 2017-07-10  312  
1d7f6932c522ea Guo Ren        2022-05-05  313  static __always_inline int arch_atomic_dec_if_positive(atomic_t *v)
fab957c11efe2f Palmer Dabbelt 2017-07-10  314  {
fab957c11efe2f Palmer Dabbelt 2017-07-10  315         int prev, rc;
fab957c11efe2f Palmer Dabbelt 2017-07-10  316  
fab957c11efe2f Palmer Dabbelt 2017-07-10 @317  	__asm__ __volatile__ (
5ce6c1f3535fa8 Andrea Parri   2018-03-09  318  		"0:	lr.w     %[p],  %[c]\n"
1d7f6932c522ea Guo Ren        2022-05-05  319  		"	addi     %[rc], %[p], -1\n"
5ce6c1f3535fa8 Andrea Parri   2018-03-09  320  		"	bltz     %[rc], 1f\n"
5ce6c1f3535fa8 Andrea Parri   2018-03-09  321  		"	sc.w.rl  %[rc], %[rc], %[c]\n"
5ce6c1f3535fa8 Andrea Parri   2018-03-09  322  		"	bnez     %[rc], 0b\n"
5ce6c1f3535fa8 Andrea Parri   2018-03-09  323  		"	fence    rw, rw\n"
5ce6c1f3535fa8 Andrea Parri   2018-03-09  324  		"1:\n"
fab957c11efe2f Palmer Dabbelt 2017-07-10  325  		: [p]"=&r" (prev), [rc]"=&r" (rc), [c]"+A" (v->counter)
1d7f6932c522ea Guo Ren        2022-05-05  326  		:
fab957c11efe2f Palmer Dabbelt 2017-07-10  327  		: "memory");
1d7f6932c522ea Guo Ren        2022-05-05  328  	return prev - 1;
fab957c11efe2f Palmer Dabbelt 2017-07-10  329  }
fab957c11efe2f Palmer Dabbelt 2017-07-10  330  

:::::: The code at line 317 was first introduced by commit
:::::: fab957c11efe2f405e08b9f0d080524bc2631428 RISC-V: Atomic and Locking Code

:::::: TO: Palmer Dabbelt <palmer@...belt.com>
:::::: CC: Palmer Dabbelt <palmer@...belt.com>

-- 
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https://github.com/intel/lkp-tests/wiki