C++ does does not like the extra extern before asmlinkage, remove it. Signed-off-by: Joakim Tjernlund <joakim.tjernlund@xxxxxxxxxxxx> --- include/linux/printk.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/printk.h b/include/linux/printk.h index 3472cc6..be823f5 100644 --- a/include/linux/printk.h +++ b/include/linux/printk.h @@ -139,7 +139,7 @@ struct va_format { }) #ifdef CONFIG_EARLY_PRINTK -extern asmlinkage __printf(1, 2) +asmlinkage __printf(1, 2) void early_printk(const char *fmt, ...); #else static inline __printf(1, 2) __cold @@ -270,7 +270,7 @@ static inline void show_regs_print_info(const char *log_lvl) } #endif -extern asmlinkage void dump_stack(void) __cold; +asmlinkage void dump_stack(void) __cold; #ifndef pr_fmt #define pr_fmt(fmt) fmt -- 2.10.2