linux-kernel - [PATCH v1 1/1] drm: Replace kernel.h with the necessary inclusions

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Message-Id: <20211110102423.54282-1-andriy.shevchenko@linux.intel.com>
Date:   Wed, 10 Nov 2021 12:24:23 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Thomas Zimmermann <tzimmermann@...e.de>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Subject: [PATCH v1 1/1] drm: Replace kernel.h with the necessary inclusions

When kernel.h is used in the headers it adds a lot into dependency hell,
especially when there are circular dependencies are involved.

Replace kernel.h inclusion with the list of what is really being used.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 include/drm/drm_gem_ttm_helper.h  | 2 +-
 include/drm/drm_gem_vram_helper.h | 2 +-
 include/drm/drm_mm.h              | 4 +++-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/include/drm/drm_gem_ttm_helper.h b/include/drm/drm_gem_ttm_helper.h
index c1aa02bd4c89..78040f6cc6f3 100644
--- a/include/drm/drm_gem_ttm_helper.h
+++ b/include/drm/drm_gem_ttm_helper.h
@@ -3,7 +3,7 @@
 #ifndef DRM_GEM_TTM_HELPER_H
 #define DRM_GEM_TTM_HELPER_H
 
-#include <linux/kernel.h>
+#include <linux/container_of.h>
 
 #include <drm/drm_device.h>
 #include <drm/drm_gem.h>
diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h
index d3cf06c9af65..b4ce27a72773 100644
--- a/include/drm/drm_gem_vram_helper.h
+++ b/include/drm/drm_gem_vram_helper.h
@@ -11,8 +11,8 @@
 #include <drm/ttm/ttm_bo_api.h>
 #include <drm/ttm/ttm_bo_driver.h>
 
+#include <linux/container_of.h>
 #include <linux/dma-buf-map.h>
-#include <linux/kernel.h> /* for container_of() */
 
 struct drm_mode_create_dumb;
 struct drm_plane;
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 9b4292f229c6..ac33ba1b18bc 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -39,13 +39,15 @@
  */
 #include <linux/bug.h>
 #include <linux/rbtree.h>
-#include <linux/kernel.h>
+#include <linux/limits.h>
 #include <linux/mm_types.h>
 #include <linux/list.h>
 #include <linux/spinlock.h>
 #ifdef CONFIG_DRM_DEBUG_MM
 #include <linux/stackdepot.h>
 #endif
+#include <linux/types.h>
+
 #include <drm/drm_print.h>
 
 #ifdef CONFIG_DRM_DEBUG_MM
-- 
2.33.0