![]() If sending messages with no cable connected, it quickly happens that there is no more TX context available. Then "gs_can_start_xmit()" returns with "NETDEV_TX_BUSY" and the upper layer does retry immediately keeping the CPU busy. To fix that issue, I moved "atomic_dec(&dev->active_tx_urbs)" from "gs_usb_xmit_callback()" to the TX done handling in "gs_usb_receive_bulk_callback()". Renaming "active_tx_urbs" to "active_tx_contexts" and moving it into "gs_[alloc|free]_tx_context()" would also make sense. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> |
||
---|---|---|
.. | ||
c_can | ||
cc770 | ||
ifi_canfd | ||
m_can | ||
mscan | ||
peak_canfd | ||
rcar | ||
sja1000 | ||
softing | ||
spi | ||
usb | ||
at91_can.c | ||
bfin_can.c | ||
dev.c | ||
flexcan.c | ||
grcan.c | ||
janz-ican3.c | ||
Kconfig | ||
led.c | ||
Makefile | ||
pch_can.c | ||
rx-offload.c | ||
slcan.c | ||
sun4i_can.c | ||
ti_hecc.c | ||
vcan.c | ||
vxcan.c | ||
xilinx_can.c |