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    SubjectRe: Re:[PATCH] drm: fix setting of plane_mask in pan_display_atomic() function for linux-4.4
    On Wed, May 27, 2020 at 09:33:27PM +0800, chenxb_99091@126.com wrote:
    > From: Xuebing Chen <chenxb_99091@126.com>
    >
    > On Mon, May 25, 2020 at 04:34:28PM +0200, Daniel Vetter wrote:
    > > On Sat, May 23, 2020 at 11:49:07AM +0800, chenxb_99091@126.com wrote:
    > > > From: Xuebing Chen <chenxb_99091@126.com>
    > > >
    > > > The <include/drm/drm_crtc.h> provides drm_for_each_plane_mask macro and
    > > > plane_mask is defined as bitmask of plane indices, such as
    > > > 1<<drm_plane_index(plane). This patch fixes error setting of plane_mask
    > > > in pan_display_atomic() function.
    > > >
    > > > Signed-off-by: Xuebing Chen <chenxb_99091@126.com>
    > >
    > > What kernel is this patch against? Latest upstream doesn't have any such
    > > code anymore ... I'm assuming that Ville fixed this in one of his patches,
    > > but I can't find the right one just now.
    >
    > This bug is still present in the longterm-supported versions of kernel 4.4.y,
    > including the latest kernel v4.4.224,
    > See https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/?h=v4.4.224

    See Documentation/process/stable-kernel-rules.rst on how to request
    a stable backport.

    --
    Ville Syrjälä
    Intel

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