This is a note to let you know that I've just added the patch titled
staging: android: ion: Set the length of the DMA sg entries in buffer
to the 4.4-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:
staging-android-ion-set-the-length-of-the-dma-sg-entries-in-buffer.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 70bc916b2c80913753fb188d4daee50a64d21ba0 Mon Sep 17 00:00:00 2001
From: Liviu Dudau <Liviu.Dudau@xxxxxxx>
Date: Thu, 21 Jan 2016 11:57:47 +0000
Subject: staging: android: ion: Set the length of the DMA sg entries in buffer
From: Liviu Dudau <Liviu.Dudau@xxxxxxx>
commit 70bc916b2c80913753fb188d4daee50a64d21ba0 upstream.
ion_buffer_create() will allocate a buffer and then create a DMA
mapping for it, but it forgot to set the length of the page entries.
Signed-off-by: Liviu Dudau <Liviu.Dudau@xxxxxxx>
Signed-off-by: Jon Medhurst <tixy@xxxxxxxxxx>
Acked-by: Laura Abbott <labbott@xxxxxxxxxx>
Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/android/ion/ion.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -251,8 +251,10 @@ static struct ion_buffer *ion_buffer_cre
* memory coming from the heaps is ready for dma, ie if it has a
* cached mapping that mapping has been invalidated
*/
- for_each_sg(buffer->sg_table->sgl, sg, buffer->sg_table->nents, i)
+ for_each_sg(buffer->sg_table->sgl, sg, buffer->sg_table->nents, i) {
sg_dma_address(sg) = sg_phys(sg);
+ sg_dma_len(sg) = sg->length;
+ }
mutex_lock(&dev->buffer_lock);
ion_buffer_add(dev, buffer);
mutex_unlock(&dev->buffer_lock);
Patches currently in stable-queue which might be from Liviu.Dudau@xxxxxxx are
queue-4.4/staging-android-ion-set-the-length-of-the-dma-sg-entries-in-buffer.patch
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