Make some functions static to fix the following sparse warnings: 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? Fixes: fed4955f304e ("MIPS: Loongson64: Add Mail_Send support for 3A4000+ CPU") Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> --- arch/mips/loongson64/smp.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/mips/loongson64/smp.c b/arch/mips/loongson64/smp.c index 6acde65..09ebe84 100644 --- a/arch/mips/loongson64/smp.c +++ b/arch/mips/loongson64/smp.c @@ -51,11 +51,11 @@ static uint32_t core0_c0count[NR_CPUS]; __wbflush(); \ } while (0) -u32 (*ipi_read_clear)(int cpu); -void (*ipi_write_action)(int cpu, u32 action); -void (*ipi_write_enable)(int cpu); -void (*ipi_clear_buf)(int cpu); -void (*ipi_write_buf)(int cpu, struct task_struct *idle); +static u32 (*ipi_read_clear)(int cpu); +static void (*ipi_write_action)(int cpu, u32 action); +static void (*ipi_write_enable)(int cpu); +static void (*ipi_clear_buf)(int cpu); +static void (*ipi_write_buf)(int cpu, struct task_struct *idle); /* send mail via Mail_Send register for 3A4000+ CPU */ static void csr_mail_send(uint64_t data, int cpu, int mailbox) -- 2.1.0