On Mon, 2022-07-18 at 21:52 +0800, Yu Kuai wrote:
> 在 2022/07/06 17:33, Yu Kuai 写道:
> > From: Yu Kuai <yukuai3@xxxxxxxxxx>
> >
> > commit 1243172d5894 ("nbd: use pr_err to output error message") tries
> > to define pr_fmt and use short pr_err() to output error message,
> > however, the definition is missed.
>
> friendly ping ...
[]
> > diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
[]
> > @@ -44,6 +44,9 @@
> > #include <linux/nbd-netlink.h>
> > #include <net/genetlink.h>
> >
> > +#undef pr_fmt
> > +#define pr_fmt(fmt) "nbd: " fmt
> > +
Typically, this #define is place before all #include lines
so there is no need for an #undef
