This is a note to let you know that I've just added the patch titled
USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-dummy-hcd-use-usb_urb_dir_in-instead-of-usb_pipein.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6dabeb891c001c592645df2f477fed9f5d959987 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Date: Mon, 21 Oct 2019 16:20:59 +0200
Subject: USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein
From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
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@xxxxxxxxxx>
Link: https://lore.kernel.org/r/4ae9e68ebca02f08a93ac61fe065057c9a01f0a8.1571667489.git.andreyknvl@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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
@@ -1321,7 +1321,7 @@ 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) {
@@ -1409,7 +1409,7 @@ 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 {
@@ -1830,7 +1830,7 @@ 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) {
@@ -2385,7 +2385,7 @@ 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: \
Patches currently in stable-queue which might be from andreyknvl@xxxxxxxxxx are
queue-5.4/usb-dummy-hcd-use-usb_urb_dir_in-instead-of-usb_pipein.patch
