Hi Daniel, Thanks for the comments. On Tue, Feb 09, 2021 at 08:27:10AM +0100, Daniel Vetter wrote: > On Mon, Feb 8, 2021 at 9:20 PM Sakari Ailus > <sakari.ailus@xxxxxxxxxxxxxxx> wrote: > > > > Instead of constructing the FourCC code manually, use the %p4cc printk > > modifier to print it. Also leave a message to avoid using this function. > > > > The next step would be to convert the users to use %p4cc directly instead > > and removing the function. > > > > Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> > > --- > > drivers/gpu/drm/drm_fourcc.c | 16 +++------------- > > 1 file changed, 3 insertions(+), 13 deletions(-) > > > > diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c > > index 03262472059c..4ff40f2f27c0 100644 > > --- a/drivers/gpu/drm/drm_fourcc.c > > +++ b/drivers/gpu/drm/drm_fourcc.c > > @@ -30,11 +30,6 @@ > > #include <drm/drm_device.h> > > #include <drm/drm_fourcc.h> > > > > -static char printable_char(int c) > > -{ > > - return isascii(c) && isprint(c) ? c : '?'; > > -} > > - > > /** > > * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description > > * @bpp: bits per pixels > > @@ -134,17 +129,12 @@ EXPORT_SYMBOL(drm_driver_legacy_fb_format); > > * drm_get_format_name - fill a string with a drm fourcc format's name > > * @format: format to compute name of > > * @buf: caller-supplied buffer > > + * > > + * Please use %p4cc printk format modifier instead of this function. > > I think would be nice if we could roll this out and outright delete > this one here ... Quick git grep says there's not that many, and %p4cc > is quite a bit shorter than what we have now. Sounds good; I can submit patches for that but I think I'll do that once we have the %p4cc modifier in. -- Regards, Sakari Ailus