[PATCH v2 20/23] functionfs: convert to use the SGT mapping type

[Alistair Popple]

From: Jason Gunthorpe <jgg at nvidia.com>

These importer helper functions should call dma_buf_sgt_dma_device() as
they are always working with SGTs.

Signed-off-by: Jason Gunthorpe <jgg at nvidia.com>
Signed-off-by: Alistair Popple <apopple at nvidia.com>
---
 drivers/usb/gadget/function/f_fs.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 2f221d0a983f..1efadf2c0f73 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -16,6 +16,7 @@
 
 #include <linux/blkdev.h>
 #include <linux/dma-buf.h>
+#include <linux/dma-buf-mapping.h>
 #include <linux/dma-fence.h>
 #include <linux/dma-resv.h>
 #include <linux/pagemap.h>
@@ -1514,7 +1515,7 @@ ffs_dmabuf_find_attachment(struct ffs_epfile *epfile, struct dma_buf *dmabuf)
 	mutex_lock(&epfile->dmabufs_mutex);
 
 	list_for_each_entry(priv, &epfile->dmabufs, entry) {
-		if (priv->attach->dev == dev
+		if (dma_buf_sgt_dma_device(priv->attach) == dev
 		    && priv->attach->dmabuf == dmabuf) {
 			attach = priv->attach;
 			break;
@@ -1616,7 +1617,7 @@ static int ffs_dmabuf_detach(struct file *file, int fd)
 	mutex_lock(&epfile->dmabufs_mutex);
 
 	list_for_each_entry_safe(priv, tmp, &epfile->dmabufs, entry) {
-		if (priv->attach->dev == dev
+		if (dma_buf_sgt_dma_device(priv->attach) == dev
 		    && priv->attach->dmabuf == dmabuf) {
 			/* Cancel any pending transfer */
 			spin_lock_irq(&ffs->eps_lock);

-- 
2.54.0