linux-kernel - Re: [PATCH v2 0/2] drivers: don't select DMA

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Date:   Thu, 8 Apr 2021 13:16:59 +0300
From:   Mike Rapoport <rppt@...nel.org>
To:     David Hildenbrand <david@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Joel Stanley <joel@....id.au>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Andrew Jeffery <andrew@...id.au>,
        Lucas Stach <l.stach@...gutronix.de>,
        Russell King <linux+etnaviv@...linux.org.uk>,
        Christian Gmeiner <christian.gmeiner@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Michal Simek <michal.simek@...inx.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Peter Collingbourne <pcc@...gle.com>,
        linux-aspeed@...ts.ozlabs.org, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        etnaviv@...ts.freedesktop.org, linux-fbdev@...r.kernel.org
Subject: Re: [PATCH v2 0/2] drivers: don't select DMA_CMA or CMA

On Thu, Apr 08, 2021 at 12:05:21PM +0200, David Hildenbrand wrote:
> Trying to set CONFIG_CMA=y with CONFIG_DMA_CMA=n revealed that we have
> three drivers that select these options. Random drivers should not
> override user settings of such core knobs. Let's use "imply DMA_CMA"
> instead, such that user configuration and dependencies are respected.
> 
> v1 -> v2:
> - Fix DRM_CMA -> DMA_CMA
> 
> Cc: Joel Stanley <joel@....id.au>
> Cc: David Airlie <airlied@...ux.ie>
> Cc: Daniel Vetter <daniel@...ll.ch>
> Cc: Andrew Jeffery <andrew@...id.au>
> Cc: Lucas Stach <l.stach@...gutronix.de>
> Cc: Russell King <linux+etnaviv@...linux.org.uk>
> Cc: Christian Gmeiner <christian.gmeiner@...il.com>
> Cc: Mike Rapoport <rppt@...nel.org>
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
> Cc: Linus Walleij <linus.walleij@...aro.org>
> Cc: Michal Simek <michal.simek@...inx.com>
> Cc: Masahiro Yamada <masahiroy@...nel.org>
> Cc: Randy Dunlap <rdunlap@...radead.org>
> Cc: Peter Collingbourne <pcc@...gle.com>
> Cc: linux-aspeed@...ts.ozlabs.org
> Cc: dri-devel@...ts.freedesktop.org
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: etnaviv@...ts.freedesktop.org
> Cc: linux-fbdev@...r.kernel.org
> 
> David Hildenbrand (2):
>   drivers/video/fbdev: don't select DMA_CMA
>   drivers/gpu/drm: don't select DMA_CMA or CMA from aspeed or etnaviv
> 
>  drivers/gpu/drm/aspeed/Kconfig  | 3 +--
>  drivers/gpu/drm/etnaviv/Kconfig | 3 +--
>  drivers/video/fbdev/Kconfig     | 2 +-
>  3 files changed, 3 insertions(+), 5 deletions(-)

Acked-by: Mike Rapoport <rppt@...ux.ibm.com>

> -- 
> 2.30.2
> 

-- 
Sincerely yours,
Mike.