linux-kernel - Re: [PATCH v2 1/3] drm: switch drm_fb_memcpy_dstclip to accept _

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Wed, 10 Apr 2019 11:42:33 +0200
From:   Noralf Trønnes <noralf@...nnes.org>
To:     Gerd Hoffmann <kraxel@...hat.com>, dri-devel@...ts.freedesktop.org
Cc:     David Airlie <airlied@...ux.ie>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:DRM DRIVER FOR QEMU'S CIRRUS DEVICE" 
        <virtualization@...ts.linux-foundation.org>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Dave Airlie <airlied@...hat.com>, Sean Paul <sean@...rly.run>
Subject: Re: [PATCH v2 1/3] drm: switch drm_fb_memcpy_dstclip to accept
 __iomem dst



Den 10.04.2019 08.38, skrev Gerd Hoffmann:
> Not all archs have the __io_virt() macro, so cirrus can't simply convert
> pointers that way.  The drm format helpers have to use memcpy_toio()
> instead.
> 
> This patch makes drm_fb_memcpy_dstclip() accept a __iomem dst pointer
> and use memcpy_toio() instead of memcpy().  With that separating out the
> memcpy loop into the drm_fb_memcpy_lines() helper isn't useful any more,
> so move the code back into the calling functins.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
> ---

Reviewed-by: Noralf Trønnes <noralf@...nnes.org>