Re: [PATCH] drm: Replace DRM_INFO() with pr_info()

From: Siddh Raman Pant
Date: Mon Dec 19 2022 - 10:34:50 EST


On Mon, 19 Dec 2022 20:27:45 +0530, Thomas Zimmermann wrote:
> Hi
>
> Am 19.12.22 um 15:23 schrieb Siddh Raman Pant:
> > Line 536 of drm_print.h says DRM_INFO() is deprecated
> > in favor of pr_info().
>
> That's a misleading comment. DRM_INFO() is deprecated for drm_info().
> pr_info() et al is only to be used of you don't have a dev pointer.
>
> Best regards
> Thomas

Maybe you are confusing it with DRM_DEV_INFO? It takes the dev pointer,
and is indeed told to be deprecated in favour of drm_info() in the
comments (see line 394).

DRM_INFO is a separate macro for printing stuff, and does not take the
dev pointer. They seem to be early wrappers for printk, I guess when
pr_info did not exist. And all they do different from pr_info is to add
DRM_NAME (which seems to be just "drm") in front of the string.

Thanks,
Siddh