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Message-ID: <92c4f9bd1d43b80a424a52131fcbc6a1a416de64.camel@perches.com>
Date: Mon, 05 Oct 2020 21:55:03 -0700
From: Joe Perches <joe@...ches.com>
To: Randy Dunlap <rdunlap@...radead.org>,
LKML <linux-kernel@...r.kernel.org>,
dri-devel <dri-devel@...ts.freedesktop.org>
Cc: kernel test robot <lkp@...el.com>, Evan Quan <evan.quan@....com>,
"amd-gfx@...ts.freedesktop.org" <amd-gfx@...ts.freedesktop.org>,
Alex Deucher <alexander.deucher@....com>,
Vineet Gupta <vgupta@...opsys.com>,
"linux-snps-arc@...ts.infradead.org"
<linux-snps-arc@...ts.infradead.org>
Subject: Re: [RFC PATCH] DRM: amd: powerplay: don't undef pr_warn() {causes
ARC build errors}
On Mon, 2020-10-05 at 21:50 -0700, Randy Dunlap wrote:
> From: Randy Dunlap <rdunlap@...radead.org>
>
> arch/arc/ implements BUG_ON() with BUG(). ARC has its own BUG()
> function and that function uses pr_warn() as part of its implementation.
>
> Several (8) files in amd/powerplay/ #undef various pr_xyz() functions so
> that they won't be used by these drivers, since dev_() functions are
> preferred here and the #undefs make the pr_() functions unavailable.
[]
> --- lnx-59-rc7.orig/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
> +++ lnx-59-rc7/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
> @@ -52,7 +52,7 @@
> * They are more MGPU friendly.
> */
> #undef pr_err
> -#undef pr_warn
> +//#undef pr_warn
> #undef pr_info
> #undef pr_debug
>
> --- lnx-59-rc7.orig/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c
> +++ lnx-59-rc7/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c
> @@ -54,7 +54,7 @@
> * They are more MGPU friendly.
> */
> #undef pr_err
> -#undef pr_warn
> +//#undef pr_warn
> #undef pr_info
> #undef pr_debug
These are bad ideas as all of these pr_<level> entries
may become functions in a near-term future.
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