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authorAmit Pundir <amit.pundir@linaro.org>2016-11-15 18:16:35 +0530
committerAmit Pundir <amit.pundir@linaro.org>2016-11-15 18:33:34 +0530
commit91e63c11a5eb143f5d737cf0380088528e7fa327 (patch)
tree34f5b35edf45c51b9a4d3aa5b04313d97be97754 /drivers/usb/gadget/function/u_ether.c
parent79df8fa79b6a2aced892ad2b2c9832e7d9bdea6b (diff)
parent29703588215bbf281aed9aa8cdec0641757fb9e1 (diff)
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Conflicts: * arch/arm64/include/asm/assembler.h Pick changes from AOSP Change-Id: I450594dc311b09b6b832b707a9abb357608cc6e4 ("UPSTREAM: arm64: include alternative handling in dcache_by_line_op"). * drivers/android/binder.c Pick changes from LTS commit 14f09e8e7cd8 ("ANDROID: binder: Add strong ref checks"), instead of AOSP Change-Id: I66c15b066808f28bd27bfe50fd0e03ff45a09fca ("ANDROID: binder: Add strong ref checks"). * drivers/usb/gadget/function/u_ether.c Refactor throttling of highspeed IRQ logic in AOSP by adding a check for last queue request as intended by LTS commit 660c04e8f174 ("usb: gadget: function: u_ether: don't starve tx request queue"). Fixes AOSP Change-Id: I26515bfd9bbc8f7af38be7835692143f7093118a ("USB: gadget: u_ether: Fix data stall issue in RNDIS tethering mode"). Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Diffstat (limited to 'drivers/usb/gadget/function/u_ether.c')
-rw-r--r--drivers/usb/gadget/function/u_ether.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c
index 74e9f5b5a45d..e4920e5e1d64 100644
--- a/drivers/usb/gadget/function/u_ether.c
+++ b/drivers/usb/gadget/function/u_ether.c
@@ -743,7 +743,8 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb,
/* throttle highspeed IRQ rate back slightly */
if (gadget_is_dualspeed(dev->gadget) &&
- (dev->gadget->speed == USB_SPEED_HIGH)) {
+ (dev->gadget->speed == USB_SPEED_HIGH) &&
+ !list_empty(&dev->tx_reqs)) {
dev->tx_qlen++;
if (dev->tx_qlen == (dev->qmult/2)) {
req->no_interrupt = 0;