BMC/Intel-BMC/linux.git/drivers/net/wireless/ralink, branch dev-5.2

rt2x00usb: fix rx queue hang

2019-07-26T07:11:02+00:00

commit 41a531ffa4c5aeb062f892227c00fabb3b4a9c91 upstream. Since commit ed194d136769 ("usb: core: remove local_irq_save() around ->complete() handler") the handler rt2x00usb_interrupt_rxdone() is not running with interrupts disabled anymore. So this completion handler is not guaranteed to run completely before workqueue processing starts for the same queue entry. Be sure to set all other flags in the entry correctly before marking this entry ready for workqueue processing. This way we cannot miss error conditions that need to be signalled from the completion handler to the worker thread. Note that rt2x00usb_work_rxdone() processes all available entries, not only such for which queue_work() was called. This patch is similar to what commit df71c9cfceea ("rt2x00: fix order of entry flags modification") did for TX processing. This fixes a regression on a RT5370 based wifi stick in AP mode, which suddenly stopped data transmission after some period of heavy load. Also stopping the hanging hostapd resulted in the error message "ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 14 failed to flush". Other operation modes are probably affected as well, this just was the used testcase. Fixes: ed194d136769 ("usb: core: remove local_irq_save() around ->complete() handler") Cc: stable@vger.kernel.org # 4.20+ Signed-off-by: Soeren Moch Acked-by: Stanislaw Gruszka Signed-off-by: Kalle Valo Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13

2019-05-21T09:28:45+00:00

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Jilayne Lovejoy Reviewed-by: Steve Winslow Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

net: wireless: support of_get_mac_address new ERR_PTR error

2019-05-06T04:47:07+00:00

There was NVMEM support added to of_get_mac_address, so it could now return ERR_PTR encoded error values, so we need to adjust all current users of of_get_mac_address to this new fact. Signed-off-by: Petr Štetiar Signed-off-by: David S. Miller

rt2x00: add RT3883 support

2019-04-25T16:58:28+00:00

Patch add support for RT3883 chip. Code was taken direclty from openwrt project and merge into one patch. Signed-off-by: Gabor Juhos Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2x00mmio: remove legacy comment

2019-04-25T16:43:09+00:00

Remove comment about fields that were removed. Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2x00: remove not used entry field

2019-04-25T16:43:08+00:00

Remove not used any longer queue_entry field and flag. Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2x00: remove last_nostatus_check

2019-04-25T16:43:07+00:00

We do not any longer check txstatus timeout from tasklet, so do not need this optimization. Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2800mmio: use timer and work for handling tx statuses timeouts

2019-04-25T16:43:06+00:00

Sometimes we can get into situation when there are pending statuses, but we do not get INT_SOURCE_CSR_TX_FIFO_STATUS. Handle this situation by arming timeout timer and read statuses (it will fix case when we just do not have irq) and queue work to handle case we missed statues from hardware FIFO. Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2800mmio: fetch tx status changes

2019-04-25T16:43:05+00:00

Prepare to use rt2800mmio_fetch_txstatus() in concurrent manner and drop return value since is not longer needed. Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo