On Mon, Apr 03, 2023 at 09:23:55AM +0300, Dan Carpenter wrote: > On Sun, Apr 02, 2023 at 08:22:35PM +0200, Ángel Alberto Carretero wrote: > > > > > > On 02/04/2023 15:16, Greg Kroah-Hartman wrote: > > > On Sun, Apr 02, 2023 at 02:25:51PM +0200, Angel Alberto Carretero wrote: > > > > Wrap macro in a do-while statement. > > > > > > > > Signed-off-by: Angel Alberto Carretero <angelalbertoc.r@xxxxxxxxx> > > > > --- > > > > drivers/staging/greybus/loopback.c | 8 +++++--- > > > > 1 file changed, 5 insertions(+), 3 deletions(-) > > > > > > > > diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c > > > > index d7b39f3bb652..371809770ed0 100644 > > > > --- a/drivers/staging/greybus/loopback.c > > > > +++ b/drivers/staging/greybus/loopback.c > > > > @@ -162,9 +162,11 @@ static ssize_t name##_avg_show(struct device *dev, \ > > > > static DEVICE_ATTR_RO(name##_avg) > > > > #define gb_loopback_stats_attrs(field) \ > > > > - gb_loopback_ro_stats_attr(field, min, u); \ > > > > - gb_loopback_ro_stats_attr(field, max, u); \ > > > > - gb_loopback_ro_avg_attr(field) > > > > + do { \ > > > > + gb_loopback_ro_stats_attr(field, min, u); \ > > > > + gb_loopback_ro_stats_attr(field, max, u); \ > > > > + gb_loopback_ro_avg_attr(field); \ > > > > + } while (0) > > > > #define gb_loopback_attr(field, type) \ > > > > static ssize_t field##_show(struct device *dev, \ > > > > -- > > > > 2.40.0 > > > > > > > > > > > > > > Any specific reason why you did not test build your change before > > > submitting it? > > > > > > thanks, > > > > > > greg k-h > > > > Apologies, we can drop the patch. I was trying to find an error as part > > of the eudyptula challenge and thought I was compiling the driver > > correctly. Upon further examination, the macro cannot be written with a > > do-while because it is defining functions. > > The "eudyptula challenge" and other first patch guides should be updated > to tell people to search for their code on lore.kernel.org before > sending a patch. The "eudyptula challenge" is not currently running and has not been for many years now so I do not know where the original poster got their information from. thanks, greg k-h