Patch "staging: android: ion: Set the length of the DMA sg entries in buffer" has been added to the 4.4-stable tree
Subsystems (2)
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 <[email protected]> know about it.
Quoted 1 line
From
70bc916b2c80913753fb188d4daee50a64d21ba0Mon Sep 17 00:00:00 2001
From: Liviu Dudau <[email protected]>
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 <[email protected]>
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.
--- drivers/staging/android/ion/ion.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
drivers/staging/android/ion/ion.c +3 -1
@@ -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 [email protected] are
queue-4.4/staging-android-ion-set-the-length-of-the-dma-sg-entries-in-buffer.patch