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Groups > linux.kernel > #1274616 > unrolled thread

[PATCH] drm/mm: rewrite drm_mm_for_each_hole

Started byGeliang Tang <geliangtang@163.com>
First post2015-11-21 10:20 +0100
Last post2015-11-23 10:10 +0100
Articles 4 — 3 participants

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Contents

  [PATCH] drm/mm: rewrite drm_mm_for_each_hole Geliang Tang <geliangtang@163.com> - 2015-11-21 10:20 +0100
    Re: [PATCH] drm/mm: rewrite drm_mm_for_each_hole kbuild test robot <lkp@intel.com> - 2015-11-21 11:30 +0100
      [PATCH v2] drm/mm: rewrite drm_mm_for_each_hole Geliang Tang <geliangtang@163.com> - 2015-11-21 15:10 +0100
        Re: [PATCH v2] drm/mm: rewrite drm_mm_for_each_hole Daniel Vetter <daniel@ffwll.ch> - 2015-11-23 10:10 +0100

#1274616 — [PATCH] drm/mm: rewrite drm_mm_for_each_hole

FromGeliang Tang <geliangtang@163.com>
Date2015-11-21 10:20 +0100
Subject[PATCH] drm/mm: rewrite drm_mm_for_each_hole
Message-ID<qxcuR-3hZ-1@gated-at.bofh.it>
When backwards is 0, __drm_mm_for_each_hole is same as
drm_mm_for_each_hole. So I rewrite drm_mm_for_each_hole
by using __drm_mm_for_each_hole.

Signed-off-by: Geliang Tang <geliangtang@163.com>
---
 include/drm/drm_mm.h | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 0de6290..ef52fcf 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -199,14 +199,6 @@ static inline u64 drm_mm_hole_node_end(struct drm_mm_node *hole_node)
  * The __drm_mm_for_each_hole version is similar, but with added support for
  * going backwards.
  */
-#define drm_mm_for_each_hole(entry, mm, hole_start, hole_end) \
-	for (entry = list_entry((mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
-	     &entry->hole_stack != &(mm)->hole_stack ? \
-	     hole_start = drm_mm_hole_node_start(entry), \
-	     hole_end = drm_mm_hole_node_end(entry), \
-	     1 : 0; \
-	     entry = list_entry(entry->hole_stack.next, struct drm_mm_node, hole_stack))
-
 #define __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, backwards) \
 	for (entry = list_entry((backwards) ? (mm)->hole_stack.prev : (mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
 	     &entry->hole_stack != &(mm)->hole_stack ? \
@@ -215,6 +207,9 @@ static inline u64 drm_mm_hole_node_end(struct drm_mm_node *hole_node)
 	     1 : 0; \
 	     entry = list_entry((backwards) ? entry->hole_stack.prev : entry->hole_stack.next, struct drm_mm_node, hole_stack))
 
+#define drm_mm_for_each_hole(entry, mm, hole_start, hole_end) \
+	__drm_mm_for_each_hole(entry, mm, hole_start, hole_end, 0)
+
 /*
  * Basic range manager support (drm_mm.c)
  */
-- 
2.5.0


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#1274626

Fromkbuild test robot <lkp@intel.com>
Date2015-11-21 11:30 +0100
Message-ID<qxdAC-3Y1-19@gated-at.bofh.it>
In reply to#1274616

[Multipart message — attachments visible in raw view] — view raw

Hi Geliang,

[auto build test WARNING on drm/drm-next]
[also build test WARNING on v4.4-rc1 next-20151120]

url:    https://github.com/0day-ci/linux/commits/Geliang-Tang/drm-mm-rewrite-drm_mm_for_each_hole/20151121-171903
base:   git://people.freedesktop.org/~airlied/linux.git drm-next
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/i915/i915_irq.c:2584: warning: No description found for parameter 'wedged'
   drivers/gpu/drm/i915/i915_irq.c:2584: warning: No description found for parameter 'fmt'
>> include/drm/drm_mm.h:208: warning: No description found for parameter 'backwards'
   include/drm/drm_crtc.h:310: warning: No description found for parameter 'mode_blob'
   include/drm/drm_crtc.h:737: warning: No description found for parameter 'tile_blob_ptr'
   include/drm/drm_crtc.h:776: warning: No description found for parameter 'rotation'
   include/drm/drm_crtc.h:872: warning: No description found for parameter 'mutex'
   include/drm/drm_crtc.h:872: warning: No description found for parameter 'helper_private'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tile_idr'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'delayed_event'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'edid_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'dpms_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'path_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tile_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'plane_type_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'rotation_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_src_x'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_src_y'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_src_w'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_src_h'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_crtc_x'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_crtc_y'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_crtc_w'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_crtc_h'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_fb_id'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_crtc_id'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_active'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'prop_mode_id'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'dvi_i_subconnector_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'dvi_i_select_subconnector_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_subconnector_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_select_subconnector_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_mode_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_left_margin_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_right_margin_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_top_margin_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_bottom_margin_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_brightness_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_contrast_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_flicker_reduction_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_overscan_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_saturation_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'tv_hue_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'scaling_mode_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'aspect_ratio_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'dirty_info_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'suggested_x_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'suggested_y_property'
   include/drm/drm_crtc.h:1157: warning: No description found for parameter 'allow_fb_modifiers'
   include/drm/drm_fb_helper.h:148: warning: No description found for parameter 'connector_info'
   include/drm/drm_dp_helper.h:713: warning: No description found for parameter 'i2c_nack_count'
   include/drm/drm_dp_helper.h:713: warning: No description found for parameter 'i2c_defer_count'
   drivers/gpu/drm/drm_dp_mst_topology.c:2227: warning: No description found for parameter 'connector'
   include/drm/drm_dp_mst_helper.h:97: warning: No description found for parameter 'cached_edid'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'max_dpcd_transaction_bytes'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'sink_count'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'total_slots'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'avail_slots'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'total_pbn'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'qlock'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'tx_msg_downq'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'tx_msg_upq'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'tx_down_in_progress'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'tx_up_in_progress'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'payload_lock'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'proposed_vcpis'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'payloads'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'payload_mask'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'vcpi_mask'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'tx_waitq'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'work'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'tx_work'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'destroy_connector_list'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'destroy_connector_lock'
   include/drm/drm_dp_mst_helper.h:472: warning: No description found for parameter 'destroy_connector_work'
   drivers/gpu/drm/drm_dp_mst_topology.c:2227: warning: No description found for parameter 'connector'
   drivers/gpu/drm/drm_irq.c:173: warning: No description found for parameter 'flags'
   include/drm/drmP.h:168: warning: No description found for parameter 'fmt'
   include/drm/drmP.h:184: warning: No description found for parameter 'fmt'
   include/drm/drmP.h:202: warning: No description found for parameter 'fmt'
   include/drm/drmP.h:247: warning: No description found for parameter 'dev'
   include/drm/drmP.h:247: warning: No description found for parameter 'data'
   include/drm/drmP.h:247: warning: No description found for parameter 'file_priv'
   include/drm/drmP.h:280: warning: No description found for parameter 'ioctl'
   include/drm/drmP.h:280: warning: No description found for parameter '_func'
   include/drm/drmP.h:280: warning: No description found for parameter '_flags'
   include/drm/drmP.h:353: warning: cannot understand function prototype: 'struct drm_lock_data '
   include/drm/drmP.h:406: warning: cannot understand function prototype: 'struct drm_driver '
   include/drm/drmP.h:656: warning: cannot understand function prototype: 'struct drm_info_list '
   include/drm/drmP.h:666: warning: cannot understand function prototype: 'struct drm_info_node '
   include/drm/drmP.h:676: warning: cannot understand function prototype: 'struct drm_minor '
   include/drm/drmP.h:724: warning: cannot understand function prototype: 'struct drm_device '
   drivers/gpu/drm/i915/i915_irq.c:2584: warning: No description found for parameter 'wedged'
   drivers/gpu/drm/i915/i915_irq.c:2584: warning: No description found for parameter 'fmt'
   drivers/gpu/drm/i915/i915_irq.c:2584: warning: No description found for parameter 'wedged'
   drivers/gpu/drm/i915/i915_irq.c:2584: warning: No description found for parameter 'fmt'
   drivers/gpu/drm/i915/i915_irq.c:2584: warning: No description found for parameter 'wedged'
   drivers/gpu/drm/i915/i915_irq.c:2584: warning: No description found for parameter 'fmt'
   drivers/gpu/drm/i915/i915_irq.c:2584: warning: No description found for parameter 'wedged'
   drivers/gpu/drm/i915/i915_irq.c:2584: warning: No description found for parameter 'fmt'
   drivers/gpu/drm/i915/i915_gem.c:421: warning: No description found for parameter 'dev'
   drivers/gpu/drm/i915/i915_gem.c:421: warning: No description found for parameter 'data'
   drivers/gpu/drm/i915/i915_gem.c:421: warning: No description found for parameter 'file'

vim +/backwards +208 include/drm/drm_mm.h

e18c0412 Daniel Vetter 2014-01-23  192   * internally and will not reflect a real drm_mm_node for the very first hole.
e18c0412 Daniel Vetter 2014-01-23  193   * Hence users of this iterator may not access it.
e18c0412 Daniel Vetter 2014-01-23  194   *
e18c0412 Daniel Vetter 2014-01-23  195   * Implementation Note:
e18c0412 Daniel Vetter 2014-01-23  196   * We need to inline list_for_each_entry in order to be able to set hole_start
e18c0412 Daniel Vetter 2014-01-23  197   * and hole_end on each iteration while keeping the macro sane.
62347f9e Lauri Kasanen 2014-04-02  198   *
62347f9e Lauri Kasanen 2014-04-02  199   * The __drm_mm_for_each_hole version is similar, but with added support for
62347f9e Lauri Kasanen 2014-04-02  200   * going backwards.
9e8944ab Chris Wilson  2012-11-15  201   */
62347f9e Lauri Kasanen 2014-04-02  202  #define __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, backwards) \
62347f9e Lauri Kasanen 2014-04-02  203  	for (entry = list_entry((backwards) ? (mm)->hole_stack.prev : (mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
62347f9e Lauri Kasanen 2014-04-02  204  	     &entry->hole_stack != &(mm)->hole_stack ? \
62347f9e Lauri Kasanen 2014-04-02  205  	     hole_start = drm_mm_hole_node_start(entry), \
62347f9e Lauri Kasanen 2014-04-02  206  	     hole_end = drm_mm_hole_node_end(entry), \
62347f9e Lauri Kasanen 2014-04-02  207  	     1 : 0; \
62347f9e Lauri Kasanen 2014-04-02 @208  	     entry = list_entry((backwards) ? entry->hole_stack.prev : entry->hole_stack.next, struct drm_mm_node, hole_stack))
62347f9e Lauri Kasanen 2014-04-02  209  
59c70d8d Geliang Tang  2015-11-21  210  #define drm_mm_for_each_hole(entry, mm, hole_start, hole_end) \
59c70d8d Geliang Tang  2015-11-21  211  	__drm_mm_for_each_hole(entry, mm, hole_start, hole_end, 0)
59c70d8d Geliang Tang  2015-11-21  212  
249d6048 Jerome Glisse 2009-04-08  213  /*
249d6048 Jerome Glisse 2009-04-08  214   * Basic range manager support (drm_mm.c)
249d6048 Jerome Glisse 2009-04-08  215   */
e18c0412 Daniel Vetter 2014-01-23  216  int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node);

:::::: The code at line 208 was first introduced by commit
:::::: 62347f9e0f81d50e9b0923ec8a192f60ab7a1801 drm: Add support for two-ended allocation, v3

:::::: TO: Lauri Kasanen <cand@gmx.com>
:::::: CC: Dave Airlie <airlied@redhat.com>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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#1274660 — [PATCH v2] drm/mm: rewrite drm_mm_for_each_hole

FromGeliang Tang <geliangtang@163.com>
Date2015-11-21 15:10 +0100
Subject[PATCH v2] drm/mm: rewrite drm_mm_for_each_hole
Message-ID<qxh1v-6kL-1@gated-at.bofh.it>
In reply to#1274626
When backwards is 0, __drm_mm_for_each_hole is same as
drm_mm_for_each_hole. So I rewrite drm_mm_for_each_hole
by using __drm_mm_for_each_hole.

Signed-off-by: Geliang Tang <geliangtang@163.com>
---
Changes in v2:
 - fix make htmldocs warning
---
 include/drm/drm_mm.h | 23 +++++++++--------------
 1 file changed, 9 insertions(+), 14 deletions(-)

diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 0de6290..a58cc6c 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -180,6 +180,14 @@ static inline u64 drm_mm_hole_node_end(struct drm_mm_node *hole_node)
 						&(mm)->head_node.node_list, \
 						node_list)
 
+#define __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, backwards) \
+	for (entry = list_entry((backwards) ? (mm)->hole_stack.prev : (mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
+	     &entry->hole_stack != &(mm)->hole_stack ? \
+	     hole_start = drm_mm_hole_node_start(entry), \
+	     hole_end = drm_mm_hole_node_end(entry), \
+	     1 : 0; \
+	     entry = list_entry((backwards) ? entry->hole_stack.prev : entry->hole_stack.next, struct drm_mm_node, hole_stack))
+
 /**
  * drm_mm_for_each_hole - iterator to walk over all holes
  * @entry: drm_mm_node used internally to track progress
@@ -200,20 +208,7 @@ static inline u64 drm_mm_hole_node_end(struct drm_mm_node *hole_node)
  * going backwards.
  */
 #define drm_mm_for_each_hole(entry, mm, hole_start, hole_end) \
-	for (entry = list_entry((mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
-	     &entry->hole_stack != &(mm)->hole_stack ? \
-	     hole_start = drm_mm_hole_node_start(entry), \
-	     hole_end = drm_mm_hole_node_end(entry), \
-	     1 : 0; \
-	     entry = list_entry(entry->hole_stack.next, struct drm_mm_node, hole_stack))
-
-#define __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, backwards) \
-	for (entry = list_entry((backwards) ? (mm)->hole_stack.prev : (mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
-	     &entry->hole_stack != &(mm)->hole_stack ? \
-	     hole_start = drm_mm_hole_node_start(entry), \
-	     hole_end = drm_mm_hole_node_end(entry), \
-	     1 : 0; \
-	     entry = list_entry((backwards) ? entry->hole_stack.prev : entry->hole_stack.next, struct drm_mm_node, hole_stack))
+	__drm_mm_for_each_hole(entry, mm, hole_start, hole_end, 0)
 
 /*
  * Basic range manager support (drm_mm.c)
-- 
2.5.0


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#1275145 — Re: [PATCH v2] drm/mm: rewrite drm_mm_for_each_hole

FromDaniel Vetter <daniel@ffwll.ch>
Date2015-11-23 10:10 +0100
SubjectRe: [PATCH v2] drm/mm: rewrite drm_mm_for_each_hole
Message-ID<qxVih-8cY-7@gated-at.bofh.it>
In reply to#1274660
On Sat, Nov 21, 2015 at 10:04:04PM +0800, Geliang Tang wrote:
> When backwards is 0, __drm_mm_for_each_hole is same as
> drm_mm_for_each_hole. So I rewrite drm_mm_for_each_hole
> by using __drm_mm_for_each_hole.
> 
> Signed-off-by: Geliang Tang <geliangtang@163.com>

Applied to drm-misc, thanks.
-Daniel

> ---
> Changes in v2:
>  - fix make htmldocs warning
> ---
>  include/drm/drm_mm.h | 23 +++++++++--------------
>  1 file changed, 9 insertions(+), 14 deletions(-)
> 
> diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
> index 0de6290..a58cc6c 100644
> --- a/include/drm/drm_mm.h
> +++ b/include/drm/drm_mm.h
> @@ -180,6 +180,14 @@ static inline u64 drm_mm_hole_node_end(struct drm_mm_node *hole_node)
>  						&(mm)->head_node.node_list, \
>  						node_list)
>  
> +#define __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, backwards) \
> +	for (entry = list_entry((backwards) ? (mm)->hole_stack.prev : (mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
> +	     &entry->hole_stack != &(mm)->hole_stack ? \
> +	     hole_start = drm_mm_hole_node_start(entry), \
> +	     hole_end = drm_mm_hole_node_end(entry), \
> +	     1 : 0; \
> +	     entry = list_entry((backwards) ? entry->hole_stack.prev : entry->hole_stack.next, struct drm_mm_node, hole_stack))
> +
>  /**
>   * drm_mm_for_each_hole - iterator to walk over all holes
>   * @entry: drm_mm_node used internally to track progress
> @@ -200,20 +208,7 @@ static inline u64 drm_mm_hole_node_end(struct drm_mm_node *hole_node)
>   * going backwards.
>   */
>  #define drm_mm_for_each_hole(entry, mm, hole_start, hole_end) \
> -	for (entry = list_entry((mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
> -	     &entry->hole_stack != &(mm)->hole_stack ? \
> -	     hole_start = drm_mm_hole_node_start(entry), \
> -	     hole_end = drm_mm_hole_node_end(entry), \
> -	     1 : 0; \
> -	     entry = list_entry(entry->hole_stack.next, struct drm_mm_node, hole_stack))
> -
> -#define __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, backwards) \
> -	for (entry = list_entry((backwards) ? (mm)->hole_stack.prev : (mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
> -	     &entry->hole_stack != &(mm)->hole_stack ? \
> -	     hole_start = drm_mm_hole_node_start(entry), \
> -	     hole_end = drm_mm_hole_node_end(entry), \
> -	     1 : 0; \
> -	     entry = list_entry((backwards) ? entry->hole_stack.prev : entry->hole_stack.next, struct drm_mm_node, hole_stack))
> +	__drm_mm_for_each_hole(entry, mm, hole_start, hole_end, 0)
>  
>  /*
>   * Basic range manager support (drm_mm.c)
> -- 
> 2.5.0
> 
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
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