Ryder Lee [Mon, 29 Mar 2021 17:25:00 +0000 (01:25 +0800)]
mt76: report Rx timestamp
Frame reception timestamp (low 32-bits) that indicates the value of the
local TSF timer value at the time the first bit of the MAC header in the
received frame (PPDU unit) arriving at the MAC.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Tue, 23 Mar 2021 21:47:37 +0000 (22:47 +0100)]
mt76: fix potential DMA mapping leak
With buf uninitialized in mt76_dma_tx_queue_skb_raw, its field skip_unmap
could potentially inherit a non-zero value from stack garbage.
If this happens, it will cause DMA mappings for MCU command frames to not be
unmapped after completion
Fixes: 27d5c528a7ca ("mt76: fix double DMA unmap of the first buffer on 7615/7915") Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Tue, 6 Apr 2021 03:34:39 +0000 (11:34 +0800)]
mt76: mt7921: reduce the data latency during hw scan
Reduce the data latency during hw_scan by the split scan which would switch
back to operational channel right after scanning each channel done.
Suggested-by: Asda Wen <Asda.Wen@mediatek.com> Suggested-by: Soul Huang <Soul.Huang@mediatek.com> Co-developed-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Tue, 6 Apr 2021 03:34:35 +0000 (11:34 +0800)]
mt76: mt7921: fix the dwell time control
dwell time for the scan is not configurable according to the current
firmware submitted into linux-firmware.git, so leave the dwell time 0 to
indicate the dwell time always determined by the firmware.
Fixes: 399090ef9605 ("mt76: mt76_connac: move hw_scan and sched_scan routine in mt76_connac_mcu module") Suggested-by: Soul Huang <Soul.Huang@mediatek.com> Co-developed-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Tue, 6 Apr 2021 03:34:34 +0000 (11:34 +0800)]
mt76: mt7921: fix inappropriate WoW setup with the missing ARP informaiton
Fix the Wake-on-WoWLAN failure should rely on ARP Information is being
updated in time to the firmware.
Fixes: ffa1bf97425b ("mt76: mt7921: introduce PM support") Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Tue, 6 Apr 2021 04:46:09 +0000 (12:46 +0800)]
mt76: mt7915: add wifi subsystem reset
Reset wifi subsystem when MCU is already running.
Fixes firmware download failure after soft reboot on systems where the PCIe
reset could not be performed properly.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Co-developed-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Sat, 3 Apr 2021 12:26:39 +0000 (14:26 +0200)]
mt76: mt7921: always wake the device in mt7921_remove_interface
Make sure the mcu is not in sleep mode before sending mcu messages in
mt7921_remove_interface routine.
Fixes: 1d8efc741df80 ("mt76: mt7921: introduce Runtime PM support") Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Co-developed-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: Leon Yen <leon.yen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Sat, 27 Mar 2021 09:10:14 +0000 (10:10 +0100)]
mt76: mt7921: fix key set/delete issue
Similar to the mt7915 driver, deleting a key with the previous key index
deletes the current key. Rework the code to better keep track of
multiple keys and check for the key index before deleting the current
key
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Fri, 26 Mar 2021 20:52:11 +0000 (21:52 +0100)]
mt76: mt7615: fix chip reset on MT7622 and MT7663e
After chip reset, the DMA scheduler needs to be initialized as well.
Since the code is PCI/SoC specific, move it to pci_mac.c, so that it
can depend on a function in dma.c
Ryder Lee [Thu, 25 Mar 2021 08:06:04 +0000 (16:06 +0800)]
mt76: mt7615: keep mcu_add_bss_info enabled till interface removal
BSS_INFO_BASIC is never called alone with inactive state, which always
follows beacon offload disable, so keep it enabled throughout interfaces
life cycle. Inactive state also removes sta record of all connected
stations, thurs causes connection lost which defeats the purpose of CSA.
Lastly, this is especially an unexpected behavior that keeping mt7622
failing beacon buffer recyled when scanning channels.
bss_conf change is updated with active state only, so just overwrite it.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Wed, 24 Mar 2021 08:37:36 +0000 (09:37 +0100)]
mt76: connac: introduce mt76_sta_cmd_info data structure
Introduce mt76_sta_cmd_info data structure to contain parameters passed
to mt76_sta_cmd_info routine. This is preliminary patch to properly
configure rcpi for mt7921 devices.
Tested-by: Jayden.Kuo <jayden.kuo@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Tue, 16 Feb 2021 14:23:13 +0000 (15:23 +0100)]
mt76: mt7915: refresh repeater entry MAC address when setting BSSID
When disassociating and clearing the BSSID of a repeater entry used by a client
mode interface, the corresponding MAC address entry can get lost too, causing
the client interface to not be able to associate anymore.
Fix this by also refreshing the MAC address when setting the BSSID
Felix Fietkau [Mon, 22 Mar 2021 20:39:57 +0000 (21:39 +0100)]
mt76: mt7915: fix key set/delete issue
Deleting a key with the previous key index deletes the current key
Rework the code to better keep track of multiple keys and check for the
key index before deleting the current key
Colin Ian King [Fri, 12 Mar 2021 17:29:49 +0000 (17:29 +0000)]
mt76: mt7921: remove redundant check on type
Currently in the switch statement case where type is
NL80211_IFTYPE_STATION there is a check to see if type
is not NL80211_IFTYPE_STATION. This check is always false
and is redundant dead code that can be removed.
Addresses-Coverity: ("Logically dead code") Fixes: e0f9fdda81bd ("mt76: mt7921: add ieee80211_ops") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Sun, 7 Mar 2021 18:20:51 +0000 (19:20 +0100)]
mt76: mt7921: add wifi reset support
Introduce wifi chip reset support for mt7921 device to recover mcu
hangs.
Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Sun, 7 Mar 2021 18:20:50 +0000 (19:20 +0100)]
mt76: dma: export mt76_dma_rx_cleanup routine
Export mt76_dma_rx_cleanup routine in mt76_queue_ops data structure.
This is a preliminary patch to introduce mt7921 chip reset support.
Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Sun, 7 Mar 2021 18:20:49 +0000 (19:20 +0100)]
mt76: dma: introduce mt76_dma_queue_reset routine
Introduce mt76_dma_queue_reset utility routine to reset a given hw
queue. This is a preliminary patch to introduce mt7921 chip reset
support.
Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
This is a preliminary patch to introduce mt7921 chip reset support.
Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
This is a preliminary patch to introduce chip reset for mt7921 devices.
Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Sun, 7 Mar 2021 18:20:46 +0000 (19:20 +0100)]
mt76: introduce mcu_reset function pointer in mt76_mcu_ops structure
Introduce mcu_reset function pointer in mt76_mcu_ops structure in order
to run hw related reset function for the mcu running on the chipset.
This is a preliminary patch to introduce chip reset for mt7921 devices.
Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Sun, 7 Mar 2021 18:20:45 +0000 (19:20 +0100)]
mt76: mt7921: reduce mcu timeouts for suspend, offload and hif_ctrl msg
Reduce mcu timeout for the following uni mcu commands:
- MCU_UNI_CMD_SUSPEND
- MCU_UNI_CMD_OFFLOAD
- MCU_UNI_CMD_HIF_CTRL
This is a preliminary patch to introduce chip reset support
Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Fri, 5 Mar 2021 08:46:41 +0000 (16:46 +0800)]
mt76: mt7915: fix possible deadlock while mt7915_register_ext_phy()
ieee80211_register_hw() is called with rtnl_lock held, and this could be
caused lockdep from a work item that's on a workqueue that is flushed
with the rtnl held.
Move mt7915_register_ext_phy() outside the init_work().
Signed-off-by: Evelyn Tsai <evelyn.tsai@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Thu, 4 Mar 2021 13:25:23 +0000 (21:25 +0800)]
mt76: mt7663s: fix the possible device hang in high traffic
Use the additional memory barrier to ensure the skb list up-to-date
between the skb producer and consumer to avoid the invalid skb content
written into sdio controller and then cause device hang due to mcu assert
caught by WR_TIMEOUT_INT.
Fixes: 1522ff731f84 ("mt76: mt7663s: introduce sdio tx aggregation") Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Thu, 4 Mar 2021 13:25:21 +0000 (21:25 +0800)]
mt76: mt7663: fix when beacon filter is being applied
HW beacon filter command is being applied until we're in associated state
because the command would rely on the associated access point's beacon
interval and DTIM information.
Fixes: 7124198ab1a4 ("mt76: mt7615: enable beacon filtering by default for offload fw") Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Wed, 3 Mar 2021 10:37:59 +0000 (18:37 +0800)]
mt76: mt7915: fix rxrate reporting
Avoid directly updating sinfo->rxrate from firmware since rate_info might
be overwritten by wrong results even mt7915_mcu_get_rx_rate() fails check.
Add more error handlings accordingly.
Fixes: 11553d88d0b9 ("mt76: mt7915: query station rx rate from firmware") Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Fri, 26 Feb 2021 08:23:27 +0000 (16:23 +0800)]
mt76: mt7921: fix the base of the dynamic remap
We should change the base for the dynamic remap into another one, because
the current base (0xe0000) have been the one used to operate the device
ownership.
Fixes: 163f4d22c118 ("mt76: mt7921: add MAC support") Co-developed-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Fri, 26 Feb 2021 08:23:26 +0000 (16:23 +0800)]
mt76: mt7921: fix the base of PCIe interrupt
Should use 0x10000 as the base to operate PCIe interrupt according
to the vendor reference driver.
Fixes: ffa1bf97425b ("mt76: mt7921: introduce PM support") Co-developed-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Tested-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Wed, 24 Feb 2021 11:29:34 +0000 (12:29 +0100)]
mt76: check return value of mt76_txq_send_burst in mt76_txq_schedule_list
Since mt76_txq_send_burst routine can report a negative error code,
check the returned value before incrementing the number of transmitted
frames in mt76_txq_schedule_list routine.
Return -EBUSY directly if the device is in reset or in power management.
Fixes: 90fdc1717b186 ("mt76: use mac80211 txq scheduling") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Tue, 23 Feb 2021 14:00:36 +0000 (22:00 +0800)]
mt76: mt7915: fix mib stats counter reporting to mac80211
In order to properly report MIB counters to mac80211, resets stats in
mt7915_get_stats routine() and hold mt76 mutex accessing MIB counters.
Sum up MIB counters in mt7915_mac_update_mib_stats routine.
Fixes: e57b7901469f ("mt76: add mac80211 driver for MT7915 PCIe-based chipsets") Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Tue, 23 Feb 2021 10:42:49 +0000 (11:42 +0100)]
mt76: mt7615: fix mib stats counter reporting to mac80211
In order to properly report MIB counters to mac80211, resets stats in
mt7615_get_stats routine and hold mt76 mutex accessing MIB counters.
Sum up MIB counters in mt7615_mac_update_mib_stats routine.
Fixes: c388d8584bc83 ("mt76: mt7615: add a get_stats() callback") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Ryder Lee [Tue, 23 Feb 2021 08:43:11 +0000 (16:43 +0800)]
mt76: mt7615: fix TSF configuration
The index of TSF counters should follow HWBSSID.
Fixes: d8d59f66d136 ("mt76: mt7615: support 16 interfaces") Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Mon, 22 Feb 2021 18:17:49 +0000 (19:17 +0100)]
mt76: mt7921: fix stats register definitions
Fix register definitions for mac80211 stats reporting.
Move mib counter reset to mt7921_get_stats routine.
Fixes: 163f4d22c118d ("mt76: mt7921: add MAC support") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Sun, 26 Jul 2020 11:09:51 +0000 (13:09 +0200)]
mt76: use threaded NAPI
With threaded NAPI, the rx handler function is no longer bound to the CPU that
fired the interrupt, which significantly helps to spread the workload over
multiple CPUs, especially when multiple devices are using threaded NAPI at the
same time.
Exclude the tx handler from threaded NAPI by using a separate dummy netdev.
The work is small and short-lived enough that it makes more sense to run it in
softirq instead of creating a dedicated thread
Sean Wang [Fri, 19 Feb 2021 17:28:51 +0000 (18:28 +0100)]
mt76: connac: update sched_scan cmd usage
Update sched_scan command usage according to the current firmware
submitted into linux-firmware.git.
Fixes: 80fc1e37c0eb ("mt76: mt7921: rely on mt76_connac_mcu module for sched_scan and hw_scan") Co-developed-by: Soul Huang <Soul.Huang@mediatek.com> Signed-off-by: Soul Huang <Soul.Huang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Fri, 19 Feb 2021 17:28:49 +0000 (18:28 +0100)]
mt76: mt7921: add flush operation
add flush operation to make sure cfg80211_mlme_deauth is able to flush
the deauthtication frame into air immediately.
Co-developed-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: YN Chen <YN.Chen@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Fri, 19 Feb 2021 17:28:48 +0000 (18:28 +0100)]
mt76: mt7921: fixup rx bitrate statistics
Since the related rx bitrate fields have been moved to group3 in Rxv,
fix rx bitrate statistics in mt7921_mac_fill_rx routine.
Fixes: 163f4d22c118d ("mt76: mt7921: add MAC support") Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Fri, 19 Feb 2021 17:28:46 +0000 (18:28 +0100)]
mt76: mt7921: switch to new api for hardware beacon filter
Current firmware only supports new api for enabling hardware beacon filter.
Fixes: 1d8efc741df80 ("mt76: mt7921: introduce Runtime PM support")
Beacon filter cmd have to rely on the associatied access point's beacon
interval and DTIM information.
Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Fri, 19 Feb 2021 17:28:45 +0000 (18:28 +0100)]
mt76: mt7921: fix memory leak in mt7921_coredump_work
Fix possible memory leak in mt7921_coredump_work.
Fixes: 1c099ab44727c ("mt76: mt7921: add MCU support") Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sean Wang [Fri, 19 Feb 2021 17:28:44 +0000 (18:28 +0100)]
mt76: mt7921: fix suspend/resume sequence
Any pcie access should happen in pci D0 state and we should give ownership
back to the device at the end of the suspend procedure.
Fixes: 1d8efc741df80 ("mt76: mt7921: introduce Runtime PM support") Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Fri, 12 Feb 2021 19:30:04 +0000 (20:30 +0100)]
mt76: mt7915: always check return value from mt7915_mcu_alloc_wtbl_req
As done for mt76_connac_mcu_alloc_wtbl_req, even if this is not a real
bug since mt7915_mcu_alloc_wtbl_req routine can fails just if nskb is NULL,
always check return value from mt7915_mcu_alloc_wtbl_req in order to avoid
possible future mistake.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Fri, 12 Feb 2021 11:51:05 +0000 (12:51 +0100)]
mt76: connac: always check return value from mt76_connac_mcu_alloc_wtbl_req
Even if this is not a real bug since mt76_connac_mcu_alloc_wtbl_req routine
can fails just if nskb is NULL , always check return value from
mt76_connac_mcu_alloc_wtbl_req in order to avoid possible future
mistake.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
David Bauer [Sun, 7 Feb 2021 15:09:17 +0000 (16:09 +0100)]
mt76: mt76x0: disable GTK offloading
When operating two VAP on a MT7610 with encryption (PSK2, SAE, OWE),
only the first one to be created will transmit properly encrypteded
frames.
All subsequently created VAPs will sent out frames with the payload left
unencrypted, breaking multicast traffic (ICMP6 NDP) and potentially
disclosing information to a third party.
Disable GTK offloading and encrypt these frames in software to
circumvent this issue. THis only seems to be necessary on MT7610 chips,
as MT7612 is not affected from our testing.
Signed-off-by: David Bauer <mail@david-bauer.net> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Lorenzo Bianconi [Sat, 6 Feb 2021 10:35:41 +0000 (11:35 +0100)]
mt76: mt7921: removed unused definitions in mcu.h
Get rid of the following definitions in mt7921/mcu.h since they are not
actually used:
- MT7921_WTBL_UPDATE_MAX_SIZE
- MT7921_STA_UPDATE_MAX_SIZE
- MT7921_WTBL_UPDATE_BA_SIZE
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Sander Vanheule [Tue, 2 Feb 2021 08:59:53 +0000 (09:59 +0100)]
mt76: mt7615: support loading EEPROM for MT7613BE
EEPROM blobs for MT7613BE radios start with (little endian) 0x7663,
which is also the PCI device ID for this device. The EEPROM is required
for the radio to work at useful power levels, otherwise only the lowest
power level is available.
Suggested-by: Georgi Vlaev <georgi.vlaev@konsulko.com> Tested-by: Stijn Segers <foss@volatilesystems.org> Signed-off-by: Sander Vanheule <sander@svanheule.net> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Felix Fietkau [Sat, 13 Feb 2021 17:44:10 +0000 (18:44 +0100)]
mt76: mt7915: fix tx skb dma unmap
The first pointer in the txp needs to be unmapped as well, otherwise it will
leak DMA mapping entries
Reported-by: Ben Greear <greearb@candelatech.com> Fixes: 27d5c528a7ca ("mt76: fix double DMA unmap of the first buffer on 7615/7915") Signed-off-by: Felix Fietkau <nbd@nbd.name>
projects / users / jedix / linux-maple.git / log