| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 01/62] USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein | Date | Sat, 11 Jan 2020 10:49:43 +0100 |
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From: Andrey Konovalov <andreyknvl@google.com>
commit 6dabeb891c001c592645df2f477fed9f5d959987 upstream.
Commit fea3409112a9 ("USB: add direction bit to urb->transfer_flags") has added a usb_urb_dir_in() helper function that can be used to determine the direction of the URB. With that patch USB_DIR_IN control requests with wLength == 0 are considered out requests by real USB HCDs. This patch changes dummy-hcd to use the usb_urb_dir_in() helper to match that behavior.
Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Link: https://lore.kernel.org/r/4ae9e68ebca02f08a93ac61fe065057c9a01f0a8.1571667489.git.andreyknvl@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/usb/gadget/udc/dummy_hcd.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/usb/gadget/udc/dummy_hcd.c +++ b/drivers/usb/gadget/udc/dummy_hcd.c @@ -1325,7 +1325,7 @@ static int dummy_perform_transfer(struct u32 this_sg; bool next_sg; - to_host = usb_pipein(urb->pipe); + to_host = usb_urb_dir_in(urb); rbuf = req->req.buf + req->req.actual; if (!urb->num_sgs) { @@ -1413,7 +1413,7 @@ top: /* FIXME update emulated data toggle too */ - to_host = usb_pipein(urb->pipe); + to_host = usb_urb_dir_in(urb); if (unlikely(len == 0)) is_short = 1; else { @@ -1837,7 +1837,7 @@ restart: /* find the gadget's ep for this request (if configured) */ address = usb_pipeendpoint (urb->pipe); - if (usb_pipein(urb->pipe)) + if (usb_urb_dir_in(urb)) address |= USB_DIR_IN; ep = find_endpoint(dum, address); if (!ep) { @@ -2390,7 +2390,7 @@ static inline ssize_t show_urb(char *buf s = "?"; break; } s; }), - ep, ep ? (usb_pipein(urb->pipe) ? "in" : "out") : "", + ep, ep ? (usb_urb_dir_in(urb) ? "in" : "out") : "", ({ char *s; \ switch (usb_pipetype(urb->pipe)) { \ case PIPE_CONTROL: \
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