linux-kernel - Re: [PATCH 0/2] video: fbdev: fix error handling, convert to pin_user

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Message-ID: <e7f95207-1b30-17a8-4667-ca58b77ec0a3@nvidia.com>
Date:   Sun, 31 May 2020 15:00:12 -0700
From:   John Hubbard <jhubbard@...dia.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
CC:     Sam Ravnborg <sam@...nborg.org>,
        LKML <linux-kernel@...r.kernel.org>,
        "linux-fbdev@...r.kernel.org" <linux-fbdev@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>,
        "Gustavo A . R . Silva" <gustavo@...eddedor.com>,
        "Jani Nikula" <jani.nikula@...el.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "Paul Mundt" <lethal@...ux-sh.org>
Subject: Re: [PATCH 0/2] video: fbdev: fix error handling, convert to
 pin_user_pages*()

On 2020-05-31 14:11, Andy Shevchenko wrote:
>     ...
> JFYI, we have history.git starting from v0.01.
> 
OK, thanks for that note. According to that history.git [1],
then: drivers/video/pvr2fb.c had get_user_pages_fast() support added to
pvr2fb_write() back in 2004, but only for CONFIG_SH_DMA, as part of

     commit 434502754f2 ("[PATCH] SH Merge")

...and that commit created the minor bug that patch 0001 here
addresses. (+Cc Paul just for the sake of completeness.)


[1] git://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git


thanks,
-- 
John Hubbard
NVIDIA