linux-kernel - arch/arm/mm/proc.c:82:6: error: conflicting types for 'cpu_arm920

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Date: Wed, 26 Jun 2024 04:37:00 +0800
From: kernel test robot <lkp@...el.com>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
	Sami Tolvanen <samitolvanen@...gle.com>
Subject: arch/arm/mm/proc.c:82:6: error: conflicting types for
 'cpu_arm920_reset'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   55027e689933ba2e64f3d245fb1ff185b3e7fc81
commit: 1a4fec49efe5273eb2fcf575175a117745f76f97 ARM: 9392/2: Support CLANG CFI
date:   8 weeks ago
config: arm-randconfig-002-20240626 (https://download.01.org/0day-ci/archive/20240626/202406260432.6WGV2jCk-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project ad79a14c9e5ec4a369eed4adf567c22cc029863f)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240626/202406260432.6WGV2jCk-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/202406260432.6WGV2jCk-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/arm/mm/proc.c:82:6: error: conflicting types for 'cpu_arm920_reset'
      82 | void cpu_arm920_reset(void);
         |      ^
   arch/arm/include/asm/proc-fns.h:96:13: note: previous declaration is here
      96 | extern void cpu_reset(unsigned long addr, bool hvc) __attribute__((noreturn));
         |             ^
   arch/arm/include/asm/glue-proc.h:251:21: note: expanded from macro 'cpu_reset'
     251 | #define cpu_reset                       __glue(CPU_NAME,_reset)
         |                                         ^
   arch/arm/include/asm/glue.h:20:26: note: expanded from macro '__glue'
      20 | #define __glue(name,fn)         ____glue(name,fn)
         |                                 ^
   arch/arm/include/asm/glue.h:16:27: note: expanded from macro '____glue'
      16 | #define ____glue(name,fn)       name##fn
         |                                 ^
   <scratch space>:70:1: note: expanded from here
      70 | cpu_arm920_reset
         | ^
   1 error generated.


vim +/cpu_arm920_reset +82 arch/arm/mm/proc.c

393999fa96273b Linus Walleij 2024-04-23  76  
393999fa96273b Linus Walleij 2024-04-23  77  #ifdef CONFIG_CPU_ARM920T
393999fa96273b Linus Walleij 2024-04-23  78  void cpu_arm920_proc_init(void);
393999fa96273b Linus Walleij 2024-04-23  79  __ADDRESSABLE(cpu_arm920_proc_init);
393999fa96273b Linus Walleij 2024-04-23  80  void cpu_arm920_proc_fin(void);
393999fa96273b Linus Walleij 2024-04-23  81  __ADDRESSABLE(cpu_arm920_proc_fin);
393999fa96273b Linus Walleij 2024-04-23 @82  void cpu_arm920_reset(void);
393999fa96273b Linus Walleij 2024-04-23  83  __ADDRESSABLE(cpu_arm920_reset);
393999fa96273b Linus Walleij 2024-04-23  84  int cpu_arm920_do_idle(void);
393999fa96273b Linus Walleij 2024-04-23  85  __ADDRESSABLE(cpu_arm920_do_idle);
393999fa96273b Linus Walleij 2024-04-23  86  void cpu_arm920_dcache_clean_area(void *addr, int size);
393999fa96273b Linus Walleij 2024-04-23  87  __ADDRESSABLE(cpu_arm920_dcache_clean_area);
393999fa96273b Linus Walleij 2024-04-23  88  void cpu_arm920_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm);
393999fa96273b Linus Walleij 2024-04-23  89  __ADDRESSABLE(cpu_arm920_switch_mm);
393999fa96273b Linus Walleij 2024-04-23  90  void cpu_arm920_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext);
393999fa96273b Linus Walleij 2024-04-23  91  __ADDRESSABLE(cpu_arm920_set_pte_ext);
393999fa96273b Linus Walleij 2024-04-23  92  #ifdef CONFIG_ARM_CPU_SUSPEND
393999fa96273b Linus Walleij 2024-04-23  93  void cpu_arm920_do_suspend(void *);
393999fa96273b Linus Walleij 2024-04-23  94  __ADDRESSABLE(cpu_arm920_do_suspend);
393999fa96273b Linus Walleij 2024-04-23  95  void cpu_arm920_do_resume(void *);
393999fa96273b Linus Walleij 2024-04-23  96  __ADDRESSABLE(cpu_arm920_do_resume);
393999fa96273b Linus Walleij 2024-04-23  97  #endif /* CONFIG_ARM_CPU_SUSPEND */
393999fa96273b Linus Walleij 2024-04-23  98  #endif /* CONFIG_CPU_ARM920T */
393999fa96273b Linus Walleij 2024-04-23  99  

:::::: The code at line 82 was first introduced by commit
:::::: 393999fa96273bab8d6efb2f4724030916afd61b ARM: 9389/2: mm: Define prototypes for all per-processor calls

:::::: TO: Linus Walleij <linus.walleij@...aro.org>
:::::: CC: Russell King (Oracle) <rmk+kernel@...linux.org.uk>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki