This is a note to let you know that I've just added the patch titled
dma-buf/sw-sync: sync_pt is private and of fixed size
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dma-buf-sw-sync-sync_pt-is-private-and-of-fixed-size.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 3b52ce44e720c240afc4c4b03140d7b7811b23bd Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Date: Thu, 29 Jun 2017 13:59:28 +0100
Subject: dma-buf/sw-sync: sync_pt is private and of fixed size
From: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
commit 3b52ce44e720c240afc4c4b03140d7b7811b23bd upstream.
Since sync_pt is only allocated from a single location and is no longer
the base class for fences (that is struct dma_fence) it no longer needs
a generic unsized allocator.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
Cc: Sean Paul <seanpaul@xxxxxxxxxxxx>
Cc: Gustavo Padovan <gustavo@xxxxxxxxxxx>
Reviewed-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxx>
Link: http://patchwork.freedesktop.org/patch/msgid/20170629125930.821-5-chris@xxxxxxxxxxxxxxxxxx
[s/dma_fence/fence/g - gregkh]
Cc: Jisheng Zhang <Jisheng.Zhang@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/dma-buf/sw_sync.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
--- a/drivers/dma-buf/sw_sync.c
+++ b/drivers/dma-buf/sw_sync.c
@@ -155,7 +155,6 @@ static void sync_timeline_signal(struct
/**
* sync_pt_create() - creates a sync pt
* @parent: fence's parent sync_timeline
- * @size: size to allocate for this pt
* @inc: value of the fence
*
* Creates a new sync_pt as a child of @parent. @size bytes will be
@@ -163,15 +162,12 @@ static void sync_timeline_signal(struct
* the generic sync_timeline struct. Returns the sync_pt object or
* NULL in case of error.
*/
-static struct sync_pt *sync_pt_create(struct sync_timeline *obj, int size,
- unsigned int value)
+static struct sync_pt *sync_pt_create(struct sync_timeline *obj,
+ unsigned int value)
{
struct sync_pt *pt;
- if (size < sizeof(*pt))
- return NULL;
-
- pt = kzalloc(size, GFP_KERNEL);
+ pt = kzalloc(sizeof(*pt), GFP_KERNEL);
if (!pt)
return NULL;
@@ -312,7 +308,7 @@ static long sw_sync_ioctl_create_fence(s
goto err;
}
- pt = sync_pt_create(obj, sizeof(*pt), data.value);
+ pt = sync_pt_create(obj, data.value);
if (!pt) {
err = -ENOMEM;
goto err;
Patches currently in stable-queue which might be from chris@xxxxxxxxxxxxxxxxxx are
queue-4.9/dma-buf-sw-sync-fix-the-is-signaled-test-to-handle-u32-wraparound.patch
queue-4.9/dma-fence-clear-fence-status-during-dma_fence_init.patch
queue-4.9/dma-buf-sw-sync-fix-locking-around-sync_timeline-lists.patch
queue-4.9/dma-fence-wrap-querying-the-fence-status.patch
queue-4.9/dma-buf-sw_sync-clean-up-list-before-signaling-the-fence.patch
queue-4.9/dma-buf-sw-sync-reduce-irqsave-irqrestore-from-known-context.patch
queue-4.9/dma-buf-sw_sync-move-timeline_fence_ops-around.patch
queue-4.9/dma-buf-sw-sync-prevent-user-overflow-on-timeline-advance.patch
queue-4.9/dma-fence-introduce-drm_fence_set_error-helper.patch
queue-4.9/dma-buf-sw_sync-force-signal-all-unsignaled-fences-on-dying-timeline.patch
queue-4.9/dma-buf-sw-sync-use-an-rbtree-to-sort-fences-in-the-timeline.patch
queue-4.9/dma-buf-sw-sync-sync_pt-is-private-and-of-fixed-size.patch
queue-4.9/dma-buf-dma-fence-extract-__dma_fence_is_later.patch