linux.git/drivers/net/wireless/mediatek, branch v5.12

mt76: mt7921: fix airtime reporting

2021-03-23T09:35:50+00:00

Fix {tx,rx}_airtime reporting for mt7921 driver. Wrong register definitions
trigger a tx hangs before resetting airtime stats.

Fixes: 163f4d22c118d ("mt76: mt7921: add MAC support")
Tested-by: Leon Yen 
Signed-off-by: Lorenzo Bianconi 
Acked-by: Felix Fietkau 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/c05333be0e3e85a50a71bb2de81034fe425e3701.1615284335.git.lorenzo@kernel.org

mt76: mt7915: fix unused 'mode' variable

2021-02-26T15:35:15+00:00

clang points out a possible corner case in the mt7915_tm_set_tx_cont()
function if called with invalid arguments:

drivers/net/wireless/mediatek/mt76/mt7915/testmode.c:593:2: warning: variable 'mode' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
        default:
        ^~~~~~~
drivers/net/wireless/mediatek/mt76/mt7915/testmode.c:597:13: note: uninitialized use occurs here
        rateval =  mode << 6 | rate_idx;
                   ^~~~
drivers/net/wireless/mediatek/mt76/mt7915/testmode.c:506:37: note: initialize the variable 'mode' to silence this warning
        u8 rate_idx = td->tx_rate_idx, mode;
                                           ^

Change it to return an error instead of continuing with invalid data
here.

Fixes: 3f0caa3cbf94 ("mt76: mt7915: add support for continuous tx in testmode")
Signed-off-by: Arnd Bergmann 
Signed-off-by: Kalle Valo

mt76: dma: do not report truncated frames to mac80211

2021-02-26T11:49:57+00:00

Commit b102f0c522cf6 ("mt76: fix array overflow on receiving too many
fragments for a packet") fixes a possible OOB access but it introduces a
memory leak since the pending frame is not released to page_frag_cache
if the frag array of skb_shared_info is full. Commit 93a1d4791c10
("mt76: dma: fix a possible memory leak in mt76_add_fragment()") fixes
the issue but does not free the truncated skb that is forwarded to
mac80211 layer. Fix the leftover issue discarding even truncated skbs.

Fixes: 93a1d4791c10 ("mt76: dma: fix a possible memory leak in mt76_add_fragment()")
Signed-off-by: Lorenzo Bianconi 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/a03166fcc8214644333c68674a781836e0f57576.1612697217.git.lorenzo@kernel.org

mt76: mt7921: remove incorrect error handling

2021-02-26T09:22:09+00:00

Clang points out a mistake in the error handling in
mt7921_mcu_tx_rate_report(), which tries to dereference a pointer that
cannot be initialized because of the error that is being handled:

drivers/net/wireless/mediatek/mt76/mt7921/mcu.c:409:3: warning: variable 'stats' is uninitialized when used here [-Wuninitialized]
                stats->tx_rate = rate;
                ^~~~~
drivers/net/wireless/mediatek/mt76/mt7921/mcu.c:401:32: note: initialize the variable 'stats' to silence this warning
        struct mt7921_sta_stats *stats;
                                      ^
Just remove the obviously incorrect line.

Fixes: 1c099ab44727 ("mt76: mt7921: add MCU support")
Signed-off-by: Arnd Bergmann 
Reviewed-by: Nick Desaulniers 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20210225145953.404859-2-arnd@kernel.org

mt76: mt7915: only modify tx buffer list after allocating tx token id

2021-02-18T06:09:10+00:00

Modifying the tx buffer list too early can leak DMA mappings

Signed-off-by: Felix Fietkau 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20210216135119.23809-2-nbd@nbd.name

mt76: fix tx skb error handling in mt76_dma_tx_queue_skb

2021-02-18T06:09:09+00:00

When running out of room in the tx queue after calling drv->tx_prepare_skb,
the buffer list will already have been modified on MT7615 and newer drivers.
This can leak a DMA mapping and will show up as swiotlb allocation failures
on x86.

Fix this by moving the queue length check further up. This is less accurate,
since it can overestimate the needed room in the queue on MT7615 and newer,
but the difference is small enough to not matter in practice.

Signed-off-by: Felix Fietkau 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20210216135119.23809-1-nbd@nbd.name

Merge tag 'wireless-drivers-next-2021-02-12' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

2021-02-13T00:43:13+00:00

Kalle Valo says:
====================
wireless-drivers-next patches for v5.12

Second set of patches for v5.12. Last time there was a smaller pull
request so unsurprisingly this time we have a big one. mt76 has new
hardware support and lots of new features, iwlwifi getting new
features and rtw88 got NAPI support. And the usual cleanups and fixes
all over.

Major changes:

ath10k

* support setting SAR limits via nl80211

rtw88

* support 8821 RFE type2 devices

* NAPI support

iwlwifi

* add new FW API support

* support for new So devices

* support for RF interference mitigation (RFI)

* support for PNVM (Platform Non-Volatile Memory, a firmware data
  file) from BIOS

mt76

* add new mt7921e driver

* 802.11 encap offload support

* support for multiple pcie gen1 host interfaces on 7915

* 7915 testmode support

* 7915 txbf support

brcmfmac

* support for CQM RSSI notifications

wil6210

* support for extended DMG MCS 12.1 rate
====================

Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-02-10T21:30:12+00:00

Merge tag 'mt76-for-kvalo-2021-01-29' of https://github.com/nbd168/wireless

2021-02-08T17:04:02+00:00

mt76 patches for 5.12

* add new mt7921e driver
* factor out common code shared between 7615/7663 and 7921
* performance optimizations
* 7915 dbdc fixes
* 802.11 encap offload support
* support for multiple pcie gen1 host interfaces on 7915
* 7915 testmode support
* bugfixes
* testmode support enhancements
* endian fixes
* 7915 txbf support

Merge tag 'wireless-drivers-next-2021-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

2021-02-06T17:36:04+00:00

Kalle Valo says:

====================
wireless-drivers-next patches for v5.12

First set of patches for v5.12. A smaller pull request this time,
biggest feature being a better key handling for ath9k. And of course
the usual fixes and cleanups all over.

Major changes:

ath9k
 * more robust encryption key cache management

brcmfmac
 * support BCM4365E with 43666 ChipCommon chip ID

* tag 'wireless-drivers-next-2021-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next: (35 commits)
  iwl4965: do not process non-QOS frames on txq->sched_retry path
  mt7601u: process tx URBs with status EPROTO properly
  wlcore: Fix command execute failure 19 for wl12xx
  mt7601u: use ieee80211_rx_list to pass frames to the network stack as a batch
  rtw88: 8723de: adjust the LTR setting
  rtlwifi: rtl8821ae: fix bool comparison in expressions
  rtlwifi: rtl8192se: fix bool comparison in expressions
  rtlwifi: rtl8188ee: fix bool comparison in expressions
  rtlwifi: rtl8192c-common: fix bool comparison in expressions
  rtlwifi: rtl_pci: fix bool comparison in expressions
  wlcore: Downgrade exceeded max RX BA sessions to debug
  wilc1000: use flexible-array member instead of zero-length array
  brcmfmac: clear EAP/association status bits on linkdown events
  brcmfmac: Delete useless kfree code
  qtnfmac_pcie: Use module_pci_driver
  mt7601u: check the status of device in calibration
  mt7601u: process URBs in status EPROTO properly
  brcmfmac: support BCM4365E with 43666 ChipCommon chip ID
  wilc1000: fix spelling mistake in Kconfig "devision" -> "division"
  mwifiex: pcie: Drop bogus __refdata annotation
  ...
====================

Link: https://lore.kernel.org/r/20210205161901.C7F83C433ED@smtp.codeaurora.org
Signed-off-by: Jakub Kicinski