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    Subject[PATCH v11 4/6] drm/atomic: Avoid unused-but-set-variable warning on for_each_old_plane_in_state
    Date
    Artificially use 'plane' and 'old_plane_state' to avoid 'not used' warning.
    The precedent has already been set by other macros in the same file.

    Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
    Signed-off-by: Liu Ying <victor.liu@nxp.com>
    ---
    v10->v11:
    * No change.

    v9->v10:
    * No change.

    v8->v9:
    * No change.

    v7->v8:
    * No change.

    v6->v7:
    * No change.

    v5->v6:
    * Fix commit message typo - s/Artifically/Artificially/

    v4->v5:
    * No change.

    v3->v4:
    * Add Daniel's A-b tag.

    v2->v3:
    * Add a missing blank line.

    v1->v2:
    * No change.

    include/drm/drm_atomic.h | 5 ++++-
    1 file changed, 4 insertions(+), 1 deletion(-)

    diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
    index 10b1990bc1f6..bcd6ff9d18e1 100644
    --- a/include/drm/drm_atomic.h
    +++ b/include/drm/drm_atomic.h
    @@ -947,7 +947,10 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
    (__i)++) \
    for_each_if ((__state)->planes[__i].ptr && \
    ((plane) = (__state)->planes[__i].ptr, \
    - (old_plane_state) = (__state)->planes[__i].old_state, 1))
    + (void)(plane) /* Only to avoid unused-but-set-variable warning */, \
    + (old_plane_state) = (__state)->planes[__i].old_state, \
    + (void)(old_plane_state) /* Only to avoid unused-but-set-variable warning */, 1))
    +
    /**
    * for_each_new_plane_in_state - iterate over all planes in an atomic update
    * @__state: &struct drm_atomic_state pointer
    --
    2.37.1
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