kernel: add linux 4.9 support

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Tim Harvey <tharvey@gateworks.com> [fixes]

1 files changed, 78 insertions, 0 deletions

diff --git a/target/linux/generic/patches-4.9/821-usb-Remove-annoying-warning-about-bogus-URB.patch b/target/linux/generic/patches-4.9/821-usb-Remove-annoying-warning-about-bogus-URB.patch
new file mode 100644
index 0000000000..84a62bf228
--- /dev/null
+++ b/target/linux/generic/patches-4.9/821-usb-Remove-annoying-warning-about-bogus-URB.patch
@@ -0,0 +1,78 @@
+From f13ad28ba4280d2283ca2b49f0bd384bc51e6a68 Mon Sep 17 00:00:00 2001
+From: Alexey Brodkin <abrodkin@synopsys.com>
+Date: Tue, 5 Jul 2016 14:28:31 +0300
+Subject: [PATCH] usb: Remove annoying warning about bogus URB
+
+When ath9k-htc Wi-Fi dongle is used with generic OHCI controller
+infinite stream of warnings appears in debug console like this:
+-------------------------->8----------------------
+usb 1-1: new full-speed USB device number 2 using ohci-platform
+usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
+usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size:
+51008
+------------[ cut here ]------------
+WARNING: CPU: 0 PID: 19 at drivers/usb/core/urb.c:449
+usb_submit_urb+0x1b4/0x498()
+usb 1-1: BOGUS urb xfer, pipe 1 != type 3
+Modules linked in:
+CPU: 0 PID: 19 Comm: kworker/0:1 Not tainted
+4.4.0-rc4-00017-g00e2d79-dirty #3
+Workqueue: events request_firmware_work_func
+
+Stack Trace:
+  arc_unwind_core.constprop.1+0xa4/0x110
+---[ end trace 649ef8c342817fc2 ]---
+------------[ cut here ]------------
+WARNING: CPU: 0 PID: 19 at drivers/usb/core/urb.c:449
+usb_submit_urb+0x1b4/0x498()
+usb 1-1: BOGUS urb xfer, pipe 1 != type 3
+Modules linked in:
+CPU: 0 PID: 19 Comm: kworker/0:1 Tainted: G        W
+4.4.0-rc4-00017-g00e2d79-dirty #3
+Workqueue: events request_firmware_work_func
+
+Stack Trace:
+  arc_unwind_core.constprop.1+0xa4/0x110
+---[ end trace 649ef8c342817fc3 ]---
+------------[ cut here ]------------
+-------------------------->8----------------------
+
+There're some discussions in mailing lists proposing to disable
+that particular check alltogether and magically all seem to work
+fine with muted warning.
+
+Anyways new thread on that regard could be found here:
+http://lists.infradead.org/pipermail/linux-snps-arc/2016-July/001310.html
+
+Let's see what comes out of that new discussion, hopefully patching
+of generic USB stuff won't be required then.
+
+Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
+---
+ drivers/usb/core/urb.c | 5 -----
+ 1 file changed, 5 deletions(-)
+
+--- a/drivers/usb/core/urb.c
++++ b/drivers/usb/core/urb.c
+@@ -321,9 +321,6 @@ EXPORT_SYMBOL_GPL(usb_unanchor_urb);
+  */
+ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
+ {
+-	static int			pipetypes[4] = {
+-		PIPE_CONTROL, PIPE_ISOCHRONOUS, PIPE_BULK, PIPE_INTERRUPT
+-	};
+ 	int				xfertype, max;
+ 	struct usb_device		*dev;
+ 	struct usb_host_endpoint	*ep;
+@@ -441,11 +438,6 @@ int usb_submit_urb(struct urb *urb, gfp_
+ 	 * cause problems in HCDs if they get it wrong.
+ 	 */
+ 
+-	/* Check that the pipe's type matches the endpoint's type */
+-	if (usb_pipetype(urb->pipe) != pipetypes[xfertype])
+-		dev_WARN(&dev->dev, "BOGUS urb xfer, pipe %x != type %x\n",
+-			usb_pipetype(urb->pipe), pipetypes[xfertype]);
+-
+ 	/* Check against a simple/standard policy */
+ 	allowed = (URB_NO_TRANSFER_DMA_MAP | URB_NO_INTERRUPT | URB_DIR_MASK |
+ 			URB_FREE_BUFFER);