linux-kernel - Re: [PATCH resend] drm/armada: Fix off-by-one error in armada_overlay_get

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Message-ID: <Y3ufKdApJGj6f97b@shell.armlinux.org.uk>
Date:   Mon, 21 Nov 2022 15:54:17 +0000
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Geert Uytterhoeven <geert+renesas@...der.be>
Cc:     David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH resend] drm/armada: Fix off-by-one error in
 armada_overlay_get_property()

On Mon, Nov 21, 2022 at 04:43:14PM +0100, Geert Uytterhoeven wrote:
> As ffs() returns one more than the index of the first bit set (zero
> means no bits set), the color key mode value is shifted one position too
> much.
> 
> Fix this by using FIELD_GET() instead.

Reviewed-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>

-- 
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