patch "staging: android: ion: Fix dma direction for" added to staging-linus

patch "staging: android: ion: Fix dma direction for" added to staging-linus

[gregkh]

This is a note to let you know that I've just added the patch titled

    staging: android: ion: Fix dma direction for

to my staging git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.

If you have any questions about this process, please let me know.


>From d6b246bb7a29703f53aa4c050b8b3205d749caee Mon Sep 17 00:00:00 2001
From: Sushmita Susheelendra <ssusheel@codeaurora.org>
Date: Fri, 15 Dec 2017 13:59:13 -0700
Subject: staging: android: ion: Fix dma direction for
 dma_sync_sg_for_cpu/device

Use the direction argument passed into begin_cpu_access
and end_cpu_access when calling the dma_sync_sg_for_cpu/device.
The actual cache primitive called depends on the direction
passed in.

Signed-off-by: Sushmita Susheelendra <ssusheel@codeaurora.org>
Cc: stable <stable@vger.kernel.org>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/android/ion/ion.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index a7d9b0e98572..f480885e346b 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -346,7 +346,7 @@ static int ion_dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
 	mutex_lock(&buffer->lock);
 	list_for_each_entry(a, &buffer->attachments, list) {
 		dma_sync_sg_for_cpu(a->dev, a->table->sgl, a->table->nents,
-				    DMA_BIDIRECTIONAL);
+				    direction);
 	}
 	mutex_unlock(&buffer->lock);
 
@@ -368,7 +368,7 @@ static int ion_dma_buf_end_cpu_access(struct dma_buf *dmabuf,
 	mutex_lock(&buffer->lock);
 	list_for_each_entry(a, &buffer->attachments, list) {
 		dma_sync_sg_for_device(a->dev, a->table->sgl, a->table->nents,
-				       DMA_BIDIRECTIONAL);
+				       direction);
 	}
 	mutex_unlock(&buffer->lock);
 
-- 
2.15.1