On Thu, May 12, 2022 at 04:26:37PM +0800, liqiong wrote: > "char bdi_unknown_nam[]" string form declares a single variable. > It is better then "char *bdi_unknown_name" which creates two > variables. > Sorry, I do not understand what you are saying here. Creating two variables means what? Thanks. > Signed-off-by: liqiong <liqiong@xxxxxxxxxxxx> > --- > mm/backing-dev.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/mm/backing-dev.c b/mm/backing-dev.c > index 7176af65b103..4982ccc63536 100644 > --- a/mm/backing-dev.c > +++ b/mm/backing-dev.c > @@ -20,7 +20,7 @@ struct backing_dev_info noop_backing_dev_info; > EXPORT_SYMBOL_GPL(noop_backing_dev_info); > > static struct class *bdi_class; > -static const char *bdi_unknown_name = "(unknown)"; > +static const char bdi_unknown_name[] = "(unknown)"; > > /* > * bdi_lock protects bdi_tree and updates to bdi_list. bdi_list has RCU > -- > 2.11.0 > >
