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

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: Sushmita Susheelendra <[email protected]>
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.

---
 drivers/staging/android/ion/ion.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

index a7d9b0e98572..f480885e346b 100644
@@ -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