linux-kernel - [PATCH v9 04/11] drm/shmem: Put booleans in the end of struct drm_gem_shmem

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Date:   Wed, 23 Nov 2022 05:57:16 +0300
From:   Dmitry Osipenko <dmitry.osipenko@...labora.com>
To:     David Airlie <airlied@...il.com>,
        Gerd Hoffmann <kraxel@...hat.com>,
        Gurchetan Singh <gurchetansingh@...omium.org>,
        Chia-I Wu <olvaffe@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Daniel Almeida <daniel.almeida@...labora.com>,
        Gustavo Padovan <gustavo.padovan@...labora.com>,
        Daniel Stone <daniel@...ishbar.org>,
        Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Rob Clark <robdclark@...il.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        Qiang Yu <yuq825@...il.com>,
        Steven Price <steven.price@....com>,
        Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>,
        Rob Herring <robh@...nel.org>, Sean Paul <sean@...rly.run>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com, virtualization@...ts.linux-foundation.org
Subject: [PATCH v9 04/11] drm/shmem: Put booleans in the end of struct drm_gem_shmem_object

Group all 1-bit boolean members of struct drm_gem_shmem_object in the end
of the structure, allowing compiler to pack data better and making code to
look more consistent.

Suggested-by: Thomas Zimmermann <tzimmermann@...e.de>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>
---
 include/drm/drm_gem_shmem_helper.h | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index a2201b2488c5..5994fed5e327 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -60,20 +60,6 @@ struct drm_gem_shmem_object {
 	 */
 	struct list_head madv_list;
 
-	/**
-	 * @pages_mark_dirty_on_put:
-	 *
-	 * Mark pages as dirty when they are put.
-	 */
-	unsigned int pages_mark_dirty_on_put    : 1;
-
-	/**
-	 * @pages_mark_accessed_on_put:
-	 *
-	 * Mark pages as accessed when they are put.
-	 */
-	unsigned int pages_mark_accessed_on_put : 1;
-
 	/**
 	 * @sgt: Scatter/gather table for imported PRIME buffers
 	 */
@@ -97,10 +83,24 @@ struct drm_gem_shmem_object {
 	 */
 	unsigned int vmap_use_count;
 
+	/**
+	 * @pages_mark_dirty_on_put:
+	 *
+	 * Mark pages as dirty when they are put.
+	 */
+	bool pages_mark_dirty_on_put : 1;
+
+	/**
+	 * @pages_mark_accessed_on_put:
+	 *
+	 * Mark pages as accessed when they are put.
+	 */
+	bool pages_mark_accessed_on_put : 1;
+
 	/**
 	 * @map_wc: map object write-combined (instead of using shmem defaults).
 	 */
-	bool map_wc;
+	bool map_wc : 1;
 };
 
 #define to_drm_gem_shmem_obj(obj) \
-- 
2.38.1