arch/mips/loongson64/smp.c:56:6: sparse: sparse: symbol 'ipi_write_enable' was not declared. Should it be static?

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   d7c5303fbc8ac874ae3e597a5a0d3707dc0230b4
commit: fed4955f304eb62acfdf86ecf05ea164856e09d8 MIPS: Loongson64: Add Mail_Send support for 3A4000+ CPU
date:   7 months ago
config: mips-randconfig-s032-20210527 (attached as .config)
compiler: mips64el-linux-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: v0.6.3-341-g8af24329-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fed4955f304eb62acfdf86ecf05ea164856e09d8
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout fed4955f304eb62acfdf86ecf05ea164856e09d8
        # 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__' W=1 ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>


sparse warnings: (new ones prefixed by >>)
   command-line: note: in included file:
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQUIRE redefined
   builtin:0:0: sparse: this was the original definition
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_SEQ_CST redefined
   builtin:0:0: sparse: this was the original definition
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQ_REL redefined
   builtin:0:0: sparse: this was the original definition
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_RELEASE redefined
   builtin:0:0: sparse: this was the original definition
   arch/mips/loongson64/smp.c:54:5: sparse: sparse: symbol 'ipi_read_clear' was not declared. Should it be static?
   arch/mips/loongson64/smp.c:55:6: sparse: sparse: symbol 'ipi_write_action' was not declared. Should it be static?
>> arch/mips/loongson64/smp.c:56:6: sparse: sparse: symbol 'ipi_write_enable' was not declared. Should it be static?
>> arch/mips/loongson64/smp.c:57:6: sparse: sparse: symbol 'ipi_clear_buf' was not declared. Should it be static?
>> arch/mips/loongson64/smp.c:58:6: sparse: sparse: symbol 'ipi_write_buf' was not declared. Should it be static?
   arch/mips/loongson64/smp.c:139:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *mem @@     got void * @@
   arch/mips/loongson64/smp.c:139:18: sparse:     expected void const volatile [noderef] __iomem *mem
   arch/mips/loongson64/smp.c:139:18: sparse:     got void *
   arch/mips/loongson64/smp.c:141:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   arch/mips/loongson64/smp.c:141:9: sparse:     expected void volatile [noderef] __iomem *mem
   arch/mips/loongson64/smp.c:141:9: sparse:     got void *
   arch/mips/loongson64/smp.c:148:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   arch/mips/loongson64/smp.c:148:9: sparse:     expected void volatile [noderef] __iomem *mem
   arch/mips/loongson64/smp.c:148:9: sparse:     got void *
   arch/mips/loongson64/smp.c:153:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   arch/mips/loongson64/smp.c:153:9: sparse:     expected void volatile [noderef] __iomem *mem
   arch/mips/loongson64/smp.c:153:9: sparse:     got void *
   arch/mips/loongson64/smp.c:158:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   arch/mips/loongson64/smp.c:158:9: sparse:     expected void volatile [noderef] __iomem *mem
   arch/mips/loongson64/smp.c:158:9: sparse:     got void *
   arch/mips/loongson64/smp.c:174:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   arch/mips/loongson64/smp.c:174:9: sparse:     expected void volatile [noderef] __iomem *mem
   arch/mips/loongson64/smp.c:174:9: sparse:     got void *
   arch/mips/loongson64/smp.c:176:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   arch/mips/loongson64/smp.c:176:9: sparse:     expected void volatile [noderef] __iomem *mem
   arch/mips/loongson64/smp.c:176:9: sparse:     got void *
   arch/mips/loongson64/smp.c:178:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   arch/mips/loongson64/smp.c:178:9: sparse:     expected void volatile [noderef] __iomem *mem
   arch/mips/loongson64/smp.c:178:9: sparse:     got void *
   arch/mips/loongson64/smp.c:180:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *mem @@     got void * @@
   arch/mips/loongson64/smp.c:180:9: sparse:     expected void volatile [noderef] __iomem *mem
   arch/mips/loongson64/smp.c:180:9: sparse:     got void *

vim +/ipi_write_enable +56 arch/mips/loongson64/smp.c

    36	
    37	/* read a 32bit value from ipi register */
    38	#define loongson3_ipi_read32(addr) readl(addr)
    39	/* read a 64bit value from ipi register */
    40	#define loongson3_ipi_read64(addr) readq(addr)
    41	/* write a 32bit value to ipi register */
    42	#define loongson3_ipi_write32(action, addr)	\
    43		do {					\
    44			writel(action, addr);		\
    45			__wbflush();			\
    46		} while (0)
    47	/* write a 64bit value to ipi register */
    48	#define loongson3_ipi_write64(action, addr)	\
    49		do {					\
    50			writeq(action, addr);		\
    51			__wbflush();			\
    52		} while (0)
    53	
    54	u32 (*ipi_read_clear)(int cpu);
    55	void (*ipi_write_action)(int cpu, u32 action);
  > 56	void (*ipi_write_enable)(int cpu);
  > 57	void (*ipi_clear_buf)(int cpu);
  > 58	void (*ipi_write_buf)(int cpu, struct task_struct *idle);
    59	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip