On 2019/4/7 5:41, Alexey Dobriyan wrote: > On Fri, Apr 05, 2019 at 09:32:35PM +0200, Thomas Gleixner wrote: >>> +/* Add support for architecture specific output in /proc/pid/status */ >>> +extern void arch_proc_pid_status(struct seq_file *m, struct task_struct *task); > ^^^^^^ > > Unnecessary extern. > The linkage is default extern, but with this functions and variables can be treated the same way. Is it mandatory not to use it explicitly? ./script/checkpatch.pl did not report this. Thanks, -Aubrey
