# \[PATCH 12/18\] fotg210-udc: remove a bogus dma\_sync\_single\_for\_device call - From: Christoph Hellwig \ - Date: 2019-02-01 08:49:44 - List: linux-fbdev - Page: https://ratatoskr.run/linux-fbdev/2019/02/5501096 - Thread: https://ratatoskr.run/linux-mips/2019/02/5501082/t.md ```text dma_map_single already transfers ownership to the device. Signed-off-by: Christoph Hellwig --- drivers/usb/gadget/udc/fotg210-udc.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c index bc6abaea907d..fe9cf415f2f1 100644 --- a/drivers/usb/gadget/udc/fotg210-udc.c +++ b/drivers/usb/gadget/udc/fotg210-udc.c @@ -356,10 +356,6 @@ static void fotg210_start_dma(struct fotg210_ep *ep, return; } - dma_sync_single_for_device(NULL, d, length, - ep->dir_in ? DMA_TO_DEVICE : - DMA_FROM_DEVICE); - fotg210_enable_dma(ep, d, length); /* check if dma is done */ -- 2.20.1 ```