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38,715 commits

Author SHA1 Message Date
Quan Zhou
53e89d83dc wifi: mt76: mt7921e: fix init command fail with enabled device
commit 525c469e5d upstream.

For some cases as below, we may encounter the unpreditable chip stats
in driver probe()
* The system reboot flow do not work properly, such as kernel oops while
  rebooting, and then the driver do not go back to default status at
  this moment.
* Similar to the flow above. If the device was enabled in BIOS or UEFI,
  the system may switch to Linux without driver fully shutdown.

To avoid the problem, force push the device back to default in probe()
* mt7921e_mcu_fw_pmctrl() : return control privilege to chip side.
* mt7921_wfsys_reset()    : cleanup chip config before resource init.

Error log
[59007.600714] mt7921e 0000:02:00.0: ASIC revision: 79220010
[59010.889773] mt7921e 0000:02:00.0: Message 00000010 (seq 1) timeout
[59010.889786] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59014.217839] mt7921e 0000:02:00.0: Message 00000010 (seq 2) timeout
[59014.217852] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59017.545880] mt7921e 0000:02:00.0: Message 00000010 (seq 3) timeout
[59017.545893] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59020.874086] mt7921e 0000:02:00.0: Message 00000010 (seq 4) timeout
[59020.874099] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59024.202019] mt7921e 0000:02:00.0: Message 00000010 (seq 5) timeout
[59024.202033] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59027.530082] mt7921e 0000:02:00.0: Message 00000010 (seq 6) timeout
[59027.530096] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59030.857888] mt7921e 0000:02:00.0: Message 00000010 (seq 7) timeout
[59030.857904] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59034.185946] mt7921e 0000:02:00.0: Message 00000010 (seq 8) timeout
[59034.185961] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59037.514249] mt7921e 0000:02:00.0: Message 00000010 (seq 9) timeout
[59037.514262] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59040.842362] mt7921e 0000:02:00.0: Message 00000010 (seq 10) timeout
[59040.842375] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59040.923845] mt7921e 0000:02:00.0: hardware init failed

Cc: stable@vger.kernel.org
Fixes: 5c14a5f944 ("mt76: mt7921: introduce mt7921e support")
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Juan Martinez <juan.martinez@amd.com>
Co-developed-by: Leon Yen <leon.yen@mediatek.com>
Signed-off-by: Leon Yen <leon.yen@mediatek.com>
Signed-off-by: Quan Zhou <quan.zhou@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Message-ID: <39fcb7cee08d4ab940d38d82f21897483212483f.1688569385.git.deren.wu@mediatek.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-19 16:36:53 +02:00
Alexander Wetzel
1a9f0e2307 wifi: ath10k: Serialize wake_tx_queue ops
commit b719ebc37a upstream.

Serialize the ath10k implementation of the wake_tx_queue ops.
ath10k_mac_op_wake_tx_queue() must not run concurrent since it's using
ieee80211_txq_schedule_start().

The intend of this patch is to sort out an issue discovered in the discussion
referred to by the Link tag.

I can't test it with real hardware and thus just implemented the per-ac queue
lock Felix suggested. One obvious alternative to the per-ac lock would be to
bring back the txqs_lock commit bb2edb7335 ("ath10k: migrate to mac80211 txq
scheduling") dropped.

Fixes: bb2edb7335 ("ath10k: migrate to mac80211 txq scheduling")
Reported-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/519b5bb9-8899-ae7c-4eff-f3116cdfdb56@nbd.name
CC: <stable@vger.kernel.org>
Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230323165527.156414-1-alexander@wetzel-home.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-19 16:36:52 +02:00
Dmitry Antipov
122c1028b2 wifi: ath9k: convert msecs to jiffies where needed
[ Upstream commit 2aa083acea ]

Since 'ieee80211_queue_delayed_work()' expects timeout in
jiffies and not milliseconds, 'msecs_to_jiffies()' should
be used in 'ath_restart_work()' and '__ath9k_flush()'.

Fixes: d63ffc45c5 ("ath9k: rename tx_complete_work to hw_check_work")
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230613134655.248728-1-dmantipov@yandex.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:33 +02:00
Johannes Berg
516e5634de wifi: iwlwifi: mvm: check only affected links
[ Upstream commit de10760081 ]

When hostapd starts up, it may start up with only one link
while the other is still scanning for overlapping BSSes. A
station might start to connect at this point, but we run
into this warning instead. Since there's no need to check
for _all_ links, restrict the check to just the affected
links that the STA will be using.

Fixes: 57974a55d9 ("wifi: iwlwifi: mvm: refactor iwl_mvm_mac_sta_state_common()")
Reported-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.c3d5a006ec21.Ib4715381f598f4c18d67cd9598ebd5cdbe7d2b09@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:33 +02:00
Johannes Berg
16e603c36d wifi: iwlwifi: mvm: indicate HW decrypt for beacon protection
[ Upstream commit 2db72b8a70 ]

We've already done the 'decryption' here, so tell
mac80211 it need not do it again.

Fixes: b1fdc2505a ("iwlwifi: mvm: advertise BIGTK client support if available")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.a50cf68fbf2e.Ieceacbe3789d81ea02ae085ad8d1f8813a33c31b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:33 +02:00
Anjaneyulu
f71d0fc407 wifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()
[ Upstream commit 1902f1953b ]

rxq can be NULL only when trans_pcie->rxq is NULL and entry->entry
is zero. For the case when entry->entry is not equal to 0, rxq
won't be NULL even if trans_pcie->rxq is NULL. Modify checker to
check for trans_pcie->rxq.

Fixes: abc599efa6 ("iwlwifi: pcie: don't crash when rx queues aren't allocated in interrupt")
Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230614123446.5a5eb3889a4a.I375a1d58f16b48cd2044e7b7caddae512d7c86fd@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:31 +02:00
Johannes Berg
172a371b60 wifi: iwlwifi: pull from TXQs with softirqs disabled
[ Upstream commit 96fb6f47db ]

In mac80211, it's required that we pull from TXQs by calling
ieee80211_tx_dequeue() only with softirqs disabled. However,
in iwl_mvm_queue_state_change() we're often called with them
enabled, e.g. from flush if anything was flushed, triggering
a mac80211 warning.

Fix that by disabling the softirqs across the TX call.

Fixes: cfbc6c4c5b ("iwlwifi: mvm: support mac80211 TXQs model")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230614123446.0feef7fa81db.I4dd62542d955b40dd8f0af34fa4accb9d0d17c7e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:31 +02:00
Johannes Berg
56b0c09d51 wifi: iwlwifi: mvm: correctly access HE/EHT sband capa
[ Upstream commit f912959875 ]

We can't just dereference the sband->iftype_data pointer,
that's an array so we need to access the right entry. Use
the previously introduced helper functions to do that.

There are also cases, e.g. when loading with disable_11ax=1,
where the pointer might be NULL but we still attempt to use
it, causing a crash.

Fixes: 529281bdf0 ("iwlwifi: mvm: limit TLC according to our HE capabilities")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230614123446.a1f2b17ee39b.I8808120be744be8804815ce9e3e24ce6d2b424e3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:31 +02:00
Gregory Greenman
726bd484d5 wifi: iwlwifi: mvm: add support for Extra EHT LTF
[ Upstream commit 18c0ffb404 ]

Add support for Extra EHT LTF defined in 9.4.2.313
EHT Capabilities element.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230613155501.de019d7cc174.I806f0f6042b89274192701a60b4f7900822db666@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Stable-dep-of: f912959875 ("wifi: iwlwifi: mvm: correctly access HE/EHT sband capa")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Johannes Berg
cbebaa71da wifi: mac80211: add helpers to access sband iftype data
[ Upstream commit 1ec7291e24 ]

There's quite a bit of code accessing sband iftype data
(HE, HE 6 GHz, EHT) and we always need to remember to use
the ieee80211_vif_type_p2p() helper. Add new helpers to
directly get it from the sband/vif rather than having to
call ieee80211_vif_type_p2p().

Convert most code with the following spatch:

    @@
    expression vif, sband;
    @@
    -ieee80211_get_he_iftype_cap(sband, ieee80211_vif_type_p2p(vif))
    +ieee80211_get_he_iftype_cap_vif(sband, vif)

    @@
    expression vif, sband;
    @@
    -ieee80211_get_eht_iftype_cap(sband, ieee80211_vif_type_p2p(vif))
    +ieee80211_get_eht_iftype_cap_vif(sband, vif)

    @@
    expression vif, sband;
    @@
    -ieee80211_get_he_6ghz_capa(sband, ieee80211_vif_type_p2p(vif))
    +ieee80211_get_he_6ghz_capa_vif(sband, vif)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230604120651.db099f49e764.Ie892966c49e22c7b7ee1073bc684f142debfdc84@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Stable-dep-of: f912959875 ("wifi: iwlwifi: mvm: correctly access HE/EHT sband capa")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Ziyang Huang
c36289e3c5 wifi: ath11k: Add missing hw_ops->get_ring_selector() for IPQ5018
[ Upstream commit ce282d8de7 ]

During sending data after clients connected, hw_ops->get_ring_selector()
will be called. But for IPQ5018, this member isn't set, and the
following NULL pointer exception will be occurred:

	[   38.840478] 8<--- cut here ---
	[   38.840517] Unable to handle kernel NULL pointer dereference at virtual address 00000000
	...
	[   38.923161] PC is at 0x0
	[   38.927930] LR is at ath11k_dp_tx+0x70/0x730 [ath11k]
	...
	[   39.063264] Process hostapd (pid: 1034, stack limit = 0x801ceb3d)
	[   39.068994] Stack: (0x856a9a68 to 0x856aa000)
	...
	[   39.438467] [<7f323804>] (ath11k_dp_tx [ath11k]) from [<7f314e6c>] (ath11k_mac_op_tx+0x80/0x190 [ath11k])
	[   39.446607] [<7f314e6c>] (ath11k_mac_op_tx [ath11k]) from [<7f17dbe0>] (ieee80211_handle_wake_tx_queue+0x7c/0xc0 [mac80211])
	[   39.456162] [<7f17dbe0>] (ieee80211_handle_wake_tx_queue [mac80211]) from [<7f174450>] (ieee80211_probereq_get+0x584/0x704 [mac80211])
	[   39.467443] [<7f174450>] (ieee80211_probereq_get [mac80211]) from [<7f178c40>] (ieee80211_tx_prepare_skb+0x1f8/0x248 [mac80211])
	[   39.479334] [<7f178c40>] (ieee80211_tx_prepare_skb [mac80211]) from [<7f179e28>] (__ieee80211_subif_start_xmit+0x32c/0x3d4 [mac80211])
	[   39.491053] [<7f179e28>] (__ieee80211_subif_start_xmit [mac80211]) from [<7f17af08>] (ieee80211_tx_control_port+0x19c/0x288 [mac80211])
	[   39.502946] [<7f17af08>] (ieee80211_tx_control_port [mac80211]) from [<7f0fc704>] (nl80211_tx_control_port+0x174/0x1d4 [cfg80211])
	[   39.515017] [<7f0fc704>] (nl80211_tx_control_port [cfg80211]) from [<808ceac4>] (genl_rcv_msg+0x154/0x340)
	[   39.526814] [<808ceac4>] (genl_rcv_msg) from [<808cdb74>] (netlink_rcv_skb+0xb8/0x11c)
	[   39.536446] [<808cdb74>] (netlink_rcv_skb) from [<808ce1d0>] (genl_rcv+0x28/0x34)
	[   39.544344] [<808ce1d0>] (genl_rcv) from [<808cd234>] (netlink_unicast+0x174/0x274)
	[   39.551895] [<808cd234>] (netlink_unicast) from [<808cd510>] (netlink_sendmsg+0x1dc/0x440)
	[   39.559362] [<808cd510>] (netlink_sendmsg) from [<808596e0>] (____sys_sendmsg+0x1a8/0x1fc)
	[   39.567697] [<808596e0>] (____sys_sendmsg) from [<8085b1a8>] (___sys_sendmsg+0xa4/0xdc)
	[   39.575941] [<8085b1a8>] (___sys_sendmsg) from [<8085b310>] (sys_sendmsg+0x44/0x74)
	[   39.583841] [<8085b310>] (sys_sendmsg) from [<80300060>] (ret_fast_syscall+0x0/0x40)
	...
	[   39.620734] Code: bad PC value
	[   39.625869] ---[ end trace 8aef983ad3cbc032 ]---

Fixes: ba60f2793d ("wifi: ath11k: initialize hw_ops for IPQ5018")
Signed-off-by: Ziyang Huang <hzyitc@outlook.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/TYZPR01MB5556D6E3F63EAB5129D11420C953A@TYZPR01MB5556.apcprd01.prod.exchangelabs.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Ziyang Huang
5fa5d8a992 wifi: ath11k: Restart firmware after cold boot calibration for IPQ5018
[ Upstream commit 80c5390e1f ]

Restart is required after cold boot calibration on IPQ5018. Otherwise,
we get the following exception:

	[   14.412829] qcom-q6-mpd cd00000.remoteproc: fatal error received: err_smem_ver.2.1:
	[   14.412829] QC Image Version : QC_IMAGE_VERSION_STRING=WLAN.HK.2.6.0.1-00974-QCAHKSWPL_SILICONZ-1
	[   14.412829] Image Variant : IMAGE_VARIANT_STRING=5018.wlanfw2.map_spr_spr_evalQ
	[   14.412829] DALSysLogEvent.c:174 Assertion 0 failed param0 :zero,param1 :zero,param2 :zero
	[   14.412829] Thread ID : 0x00000048 Thread name : WLAN RT0 Process ID : 0x00000001 Process name :wlan0
	[   14.412829]
	[   14.412829] Registers:
	[   14.412829] SP : 0x4c81c120
	[   14.412829] FP : 0x4c81c138
	[   14.412829] PC : 0xb022c590
	[   14.412829] SSR : 0x00000000
	[   14.412829] BADVA : 0x00000000
	[   14.412829] LR : 0xb0008490
	[   14.412829]
	[   14.412829] StackDump
	[   14.412829] from:0x4c81c120
	[   14.412829] to: 0x00000000:
	[   14.412829]
	[   14.463006] remoteproc remoteproc0: crash detected in cd00000.remoteproc: type fatal error

Fixes: 8dfe875aa2 ("wifi: ath11k: update hw params for IPQ5018")
Signed-off-by: Ziyang Huang <hzyitc@outlook.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/TYZPR01MB55566969818BD4B49E770445C953A@TYZPR01MB5556.apcprd01.prod.exchangelabs.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Ziyang Huang
9485d72433 wifi: ath11k: Add missing ops config for IPQ5018 in ath11k_ahb_probe()
[ Upstream commit 469ddb20ca ]

Without this patch, the IPQ5018 WiFi will fail and print the following
logs:

	[   11.033179] ath11k c000000.wifi: unsupported device type 7
	[   11.033223] ath11k: probe of c000000.wifi failed with error -95

Fixes: 25edca7bb1 ("wifi: ath11k: add ipq5018 device support")
Signed-off-by: Ziyang Huang <hzyitc@outlook.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/TYZPR01MB5556D7AA10ABEDDDD2D8F39EC953A@TYZPR01MB5556.apcprd01.prod.exchangelabs.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Jiasheng Jiang
da336c8bc9 wifi: ath11k: Add missing check for ioremap
[ Upstream commit 16e0077e14 ]

Add check for ioremap() and return the error if it fails in order to
guarantee the success of ioremap(), same as in
ath11k_qmi_load_file_target_mem().

Fixes: 6ac04bdc5e ("ath11k: Use reserved host DDR addresses from DT for PCI devices")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230608022858.27405-1-jiasheng@iscas.ac.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Mukesh Sisodiya
ff800b0c47 wifi: iwlwifi: fw: print PC register value instead of address
[ Upstream commit 2b69d242e2 ]

The program counter address is read from the TLV and
PC address is printed in debug messages.
Read the value at PC address and print the value
instead of the register address.

Fixes: 5e31b3df86 ("wifi: iwlwifi: dbg: print pc register data once fw dump occurred")
Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230612184434.e5a5f18f1b2c.Ib6117a4e7f66a075913241cc81477c0059953d5d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:29 +02:00
Mukesh Sisodiya
3e3c05ab2f wifi: iwlwifi: mvm: Handle return value for iwl_mvm_sta_init
[ Upstream commit 8d507812cb ]

sta_init function can fail and if it returns an error then
driver should not send the request to fw to add a station.

Fixes: 69aef84805 ("wifi: iwlwifi: mvm: refactor iwl_mvm_add_sta(), iwl_mvm_rm_sta()")
Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230612184434.1ecd293539e8.I5ec6aab387bb2fe743a7402581beaeb9c801d31f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:29 +02:00
Remi Pommarel
4351f69966 wifi: ath9k: Fix possible stall on ath9k_txq_list_has_key()
[ Upstream commit 75086cc6de ]

On EDMA capable hardware, ath9k_txq_list_has_key() can enter infinite
loop if it is called while all txq_fifos have packets that use different
key that the one we are looking for. Fix it by exiting the loop if all
txq_fifos have been checked already.

Because this loop is called under spin_lock_bh() (see ath_txq_lock) it
causes the following rcu stall:

rcu: INFO: rcu_sched self-detected stall on CPU
ath10k_pci 0000:01:00.0: failed to read temperature -11
rcu:    1-....: (5254 ticks this GP) idle=189/1/0x4000000000000002 softirq=8442983/8442984 fqs=2579
        (t=5257 jiffies g=17983297 q=334)
Task dump for CPU 1:
task:hostapd         state:R  running task     stack:    0 pid:  297 ppid:   289 flags:0x0000000a
Call trace:
 dump_backtrace+0x0/0x170
 show_stack+0x1c/0x24
 sched_show_task+0x140/0x170
 dump_cpu_task+0x48/0x54
 rcu_dump_cpu_stacks+0xf0/0x134
 rcu_sched_clock_irq+0x8d8/0x9fc
 update_process_times+0xa0/0xec
 tick_sched_timer+0x5c/0xd0
 __hrtimer_run_queues+0x154/0x320
 hrtimer_interrupt+0x120/0x2f0
 arch_timer_handler_virt+0x38/0x44
 handle_percpu_devid_irq+0x9c/0x1e0
 handle_domain_irq+0x64/0x90
 gic_handle_irq+0x78/0xb0
 call_on_irq_stack+0x28/0x38
 do_interrupt_handler+0x54/0x5c
 el1_interrupt+0x2c/0x4c
 el1h_64_irq_handler+0x14/0x1c
 el1h_64_irq+0x74/0x78
 ath9k_txq_has_key+0x1bc/0x250 [ath9k]
 ath9k_set_key+0x1cc/0x3dc [ath9k]
 drv_set_key+0x78/0x170
 ieee80211_key_replace+0x564/0x6cc
 ieee80211_key_link+0x174/0x220
 ieee80211_add_key+0x11c/0x300
 nl80211_new_key+0x12c/0x330
 genl_family_rcv_msg_doit+0xbc/0x11c
 genl_rcv_msg+0xd8/0x1c4
 netlink_rcv_skb+0x40/0x100
 genl_rcv+0x3c/0x50
 netlink_unicast+0x1ec/0x2c0
 netlink_sendmsg+0x198/0x3c0
 ____sys_sendmsg+0x210/0x250
 ___sys_sendmsg+0x78/0xc4
 __sys_sendmsg+0x4c/0x90
 __arm64_sys_sendmsg+0x28/0x30
 invoke_syscall.constprop.0+0x60/0x100
 do_el0_svc+0x48/0xd0
 el0_svc+0x14/0x50
 el0t_64_sync_handler+0xa8/0xb0
 el0t_64_sync+0x158/0x15c

This rcu stall is hard to reproduce as is, but changing ATH_TXFIFO_DEPTH
from 8 to 2 makes it reasonably easy to reproduce.

Fixes: ca2848022c ("ath9k: Postpone key cache entry deletion for TXQ frames reference it")
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Tested-by: Nicolas Escande <nico.escande@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609093744.1985-1-repk@triplefau.lt
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:29 +02:00
Marek Vasut
bf732fbbde wifi: rsi: Do not set MMC_PM_KEEP_POWER in shutdown
[ Upstream commit e74f562328 ]

It makes no sense to set MMC_PM_KEEP_POWER in shutdown. The flag
indicates to the MMC subsystem to keep the slot powered on during
suspend, but in shutdown the slot should actually be powered off.
Drop this call.

Fixes: 063848c3e1 ("rsi: sdio: Add WOWLAN support for S5 shutdown state")
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230527222859.273768-1-marex@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:27 +02:00
Marek Vasut
b601468539 wifi: rsi: Do not configure WoWlan in shutdown hook if not enabled
[ Upstream commit b241e26082 ]

In case WoWlan was never configured during the operation of the system,
the hw->wiphy->wowlan_config will be NULL. rsi_config_wowlan() checks
whether wowlan_config is non-NULL and if it is not, then WARNs about it.
The warning is valid, as during normal operation the rsi_config_wowlan()
should only ever be called with non-NULL wowlan_config. In shutdown this
rsi_config_wowlan() should only ever be called if WoWlan was configured
before by the user.

Add checks for non-NULL wowlan_config into the shutdown hook. While at it,
check whether the wiphy is also non-NULL before accessing wowlan_config .
Drop the single-use wowlan_config variable, just inline it into function
call.

Fixes: 16bbc3eb83 ("rsi: fix null pointer dereference during rsi_shutdown()")
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230527222833.273741-1-marex@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:27 +02:00
Johannes Berg
009c4bfaab wifi: iwlwifi: mvm: send time sync only if needed
[ Upstream commit ead65aa2d5 ]

If there's no peer configured then there's no point in sending
the command down to the firmware with an invalid peer address.

Fixes: cf85123a21 ("wifi: iwlwifi: mvm: support enabling and disabling HW timestamping")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230531194630.0fb9f81f1852.Idcc41b67d1fbb421e5ed9bac2177b948b7b4d1c9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:26 +02:00
Youghandhar Chintala
a1c6a38931 wifi: ath10k: Trigger STA disconnect after reconfig complete on hardware restart
[ Upstream commit 75bd32f5ce ]

Currently, on WCN3990, the station disconnect after hardware recovery is
not working as expected. This is because of setting the
IEEE80211_SDATA_DISCONNECT_HW_RESTART flag very early in the hardware
recovery process even before the driver invokes ieee80211_hw_restart().
On the contrary, mac80211 expects this flag to be set after
ieee80211_hw_restart() is invoked for it to trigger station disconnect.

Set the IEEE80211_SDATA_DISCONNECT_HW_RESTART flag in
ath10k_reconfig_complete() instead to fix this.

The other targets are not affected by this change, since the hardware
params flag is not set.

Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.2.2.c10-00754-QCAHLSWMTPL-1

Fixes: 2c3fc50591 ("ath10k: Trigger sta disconnect on hardware restart")
Signed-off-by: Youghandhar Chintala <quic_youghand@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230518101515.3820-1-quic_youghand@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:25 +02:00
Sascha Hauer
b8e2885ebc wifi: rtw88: usb: silence log flooding error message
[ Upstream commit 1f1784a59c ]

When receiving more rx packets than the kernel can handle the driver
drops the packets and issues an error message. This is bad for two
reasons. The logs are flooded with myriads of messages, but then time
consumed for printing messages in that critical code path brings down
the device. After some time of excessive rx load the driver responds
with:

rtw_8822cu 1-1:1.2: failed to get tx report from firmware
rtw_8822cu 1-1:1.2: firmware failed to report density after scan
rtw_8822cu 1-1:1.2: firmware failed to report density after scan

The device stops working until being replugged.

Fix this by lowering the priority to debug level and also by
ratelimiting it.

Fixes: a82dfd33d1 ("wifi: rtw88: Add common USB chip support")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230524103934.1019096-1-s.hauer@pengutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:25 +02:00
Fedor Pchelkin
be2a546c30 wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes
[ Upstream commit 061b0cb932 ]

A bad USB device is able to construct a service connection response
message with target endpoint being ENDPOINT0 which is reserved for
HTC_CTRL_RSVD_SVC and should not be modified to be used for any other
services.

Reject such service connection responses.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Fixes: fb9987d0f7 ("ath9k_htc: Support for AR9271 chipset.")
Reported-by: syzbot+b68fbebe56d8362907e8@syzkaller.appspotmail.com
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230516150427.79469-1-pchelkin@ispras.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:25 +02:00
Christophe JAILLET
3730b25d28 wifi: ray_cs: Fix an error handling path in ray_probe()
[ Upstream commit 4f8d66a9fb ]

Should ray_config() fail, some resources need to be released as already
done in the remove function.

While at it, remove a useless and erroneous comment. The probe is
ray_probe(), not ray_attach().

Fixes: 15b99ac172 ("[PATCH] pcmcia: add return value to _config() functions")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/8c544d18084f8b37dd108e844f7e79e85ff708ff.1684570373.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:25 +02:00
Christophe JAILLET
eb1adc0d9d wifi: wl3501_cs: Fix an error handling path in wl3501_probe()
[ Upstream commit 391af06a02 ]

Should wl3501_config() fail, some resources need to be released as already
done in the remove function.

Fixes: 15b99ac172 ("[PATCH] pcmcia: add return value to _config() functions")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/7cc9c9316489b7d69b36aeb0edd3123538500b41.1684569865.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:25 +02:00
Christophe JAILLET
eb0eebfdda wifi: atmel: Fix an error handling path in atmel_probe()
[ Upstream commit 6b92e4351a ]

Should atmel_config() fail, some resources need to be released as already
done in the remove function.

While at it, remove a useless and erroneous comment. The probe is
atmel_probe(), not atmel_attach().

Fixes: 15b99ac172 ("[PATCH] pcmcia: add return value to _config() functions")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/1e65f174607a83348034197fa7d603bab10ba4a9.1684569156.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:24 +02:00
Christophe JAILLET
9af2ef527b wifi: orinoco: Fix an error handling path in orinoco_cs_probe()
[ Upstream commit 67a81d911c ]

Should orinoco_cs_config() fail, some resources need to be released as
already done in the remove function.

While at it, remove a useless and erroneous comment. The probe is
orinoco_cs_probe(), not orinoco_cs_attach().

Fixes: 15b99ac172 ("[PATCH] pcmcia: add return value to _config() functions")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/e24735ce4d82901d5f7ea08419eea53bfdde3d65.1684568286.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:24 +02:00
Christophe JAILLET
cf8f2ced64 wifi: orinoco: Fix an error handling path in spectrum_cs_probe()
[ Upstream commit 9252443251 ]

Should spectrum_cs_config() fail, some resources need to be released as
already done in the remove function.

While at it, remove a useless and erroneous comment. The probe is
spectrum_cs_probe(), not spectrum_cs_attach().

Fixes: 15b99ac172 ("[PATCH] pcmcia: add return value to _config() functions")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/c0bc0c21c58ca477fc5521607615bafbf2aef8eb.1684567733.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:24 +02:00
Christophe JAILLET
f22fd486a9 wifi: mwifiex: Fix the size of a memory allocation in mwifiex_ret_802_11_scan()
[ Upstream commit d9aef04fcf ]

The type of "mwifiex_adapter->nd_info" is "struct cfg80211_wowlan_nd_info",
not "struct cfg80211_wowlan_nd_match".

Use struct_size() to ease the computation of the needed size.

The current code over-allocates some memory, so is safe.
But it wastes 32 bytes.

Fixes: 7d7f07d8c5 ("mwifiex: add wowlan net-detect support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/7a6074fb056d2181e058a3cc6048d8155c20aec7.1683371982.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:22 +02:00
Dan Carpenter
9ba1df0514 wifi: rtw88: unlock on error path in rtw_ops_add_interface()
[ Upstream commit e2ff1181b3 ]

Call mutex_unlock(&rtwdev->mutex); before returning on this error path.

Fixes: f0e741e4dd ("wifi: rtw88: add bitmap for dynamic port settings")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/ddd10a74-5982-4f65-8c59-c1cca558d239@kili.mountain
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:22 +02:00
Amisha Patel
db779efd33 wifi: wilc1000: fix for absent RSN capabilities WFA testcase
[ Upstream commit 9ce4bb0912 ]

Mandatory WFA testcase
CT_Security_WPA2Personal_STA_RSNEBoundsVerification-AbsentRSNCap,
performs bounds verfication on Beacon and/or Probe response frames. It
failed and observed the reason to be absence of cipher suite and AKM
suite in RSN information. To fix this, enable the RSN flag before extracting RSN
capabilities.

Fixes: cd21d99e59 ("wifi: wilc1000: validate pairwise and authentication suite offsets")
Signed-off-by: Amisha Patel <amisha.patel@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230421181005.4865-1-amisha.patel@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:22 +02:00
Dan Carpenter
bce2dfae26 wifi: rtw89: fix rtw89_read_chip_ver() for RTL8852B and RTL8851B
[ Upstream commit 9d4f491b86 ]

The if statement is reversed so it will not record the chip version.
This was detected using Smatch:

    drivers/net/wireless/realtek/rtw89/core.c:3593 rtw89_read_chip_ver()
    error: uninitialized symbol 'val'.

Fixes: a6fb2bb846 ("wifi: rtw89: read version of analog hardware")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/e4d912a2-37f8-4068-8861-7b9494ae731b@kili.mountain
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:21 +02:00
Fedor Pchelkin
75acec91ae wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx
[ Upstream commit f24292e827 ]

For the reasons also described in commit b383e8abed ("wifi: ath9k: avoid
uninit memory read in ath9k_htc_rx_msg()"), ath9k_htc_rx_msg() should
validate pkt_len before accessing the SKB.

For example, the obtained SKB may have been badly constructed with
pkt_len = 8. In this case, the SKB can only contain a valid htc_frame_hdr
but after being processed in ath9k_htc_rx_msg() and passed to
ath9k_wmi_ctrl_rx() endpoint RX handler, it is expected to have a WMI
command header which should be located inside its data payload.

Implement sanity checking inside ath9k_wmi_ctrl_rx(). Otherwise, uninit
memory can be referenced.

Tested on Qualcomm Atheros Communications AR9271 802.11n .

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Fixes: fb9987d0f7 ("ath9k_htc: Support for AR9271 chipset.")
Reported-and-tested-by: syzbot+f2cb6e0ffdb961921e4d@syzkaller.appspotmail.com
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230424183348.111355-1-pchelkin@ispras.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:20 +02:00
Peter Seiderer
5678b97955 wifi: ath9k: fix AR9003 mac hardware hang check register offset calculation
[ Upstream commit 3e56c80931 ]

Fix ath9k_hw_verify_hang()/ar9003_hw_detect_mac_hang() register offset
calculation (do not overflow the shift for the second register/queues
above five, use the register layout described in the comments above
ath9k_hw_verify_hang() instead).

Fixes: 222e04830f ("ath9k: Fix MAC HW hang check for AR9003")

Reported-by: Gregg Wonderly <greggwonderly@seqtechllc.com>
Link: https://lore.kernel.org/linux-wireless/E3A9C354-0CB7-420C-ADEF-F0177FB722F4@seqtechllc.com/
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230422212423.26065-1-ps.report@gmx.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:20 +02:00
Mukesh Sisodiya
4e9f0ec388 wifi: iwlwifi: pcie: Handle SO-F device for PCI id 0x7AF0
Add support for AX1690i and AX1690s devices with
PCIE id 0x7AF0.

Cc: stable@vger.kernel.org # 6.1+
Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20230619150233.461290-2-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-20 12:19:30 -07:00
Hugh Dickins
f1a0898b5d wifi: iwlwifi: mvm: spin_lock_bh() to fix lockdep regression
Lockdep on 6.4-rc on ThinkPad X1 Carbon 5th says
=====================================================
WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
6.4.0-rc5 #1 Not tainted
-----------------------------------------------------
kworker/3:1/49 [HC0[0]:SC0[4]:HE1:SE0] is trying to acquire:
ffff8881066fa368 (&mvm_sta->deflink.lq_sta.rs_drv.pers.lock){+.+.}-{2:2}, at: rs_drv_get_rate+0x46/0xe7

and this task is already holding:
ffff8881066f80a8 (&sta->rate_ctrl_lock){+.-.}-{2:2}, at: rate_control_get_rate+0xbd/0x126
which would create a new lock dependency:
 (&sta->rate_ctrl_lock){+.-.}-{2:2} -> (&mvm_sta->deflink.lq_sta.rs_drv.pers.lock){+.+.}-{2:2}

but this new dependency connects a SOFTIRQ-irq-safe lock:
 (&sta->rate_ctrl_lock){+.-.}-{2:2}
etc. etc. etc.

Changing the spin_lock() in rs_drv_get_rate() to spin_lock_bh() was not
enough to pacify lockdep, but changing them all on pers.lock has worked.

Fixes: a8938bc881 ("wifi: iwlwifi: mvm: Add locking to the rate read flow")
Signed-off-by: Hugh Dickins <hughd@google.com>
Link: https://lore.kernel.org/r/79ffcc22-9775-cb6d-3ffd-1a517c40beef@google.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-14 09:05:51 +02:00
Gustavo A. R. Silva
7a4615b9a9 wifi: iwlwifi: mvm: Fix -Warray-bounds bug in iwl_mvm_wait_d3_notif()
kmemdup() at line 2735 is not duplicating enough memory for
notif->tid_tear_down and notif->station_id. As it only duplicates
612 bytes: up to offsetofend(struct iwl_wowlan_info_notif,
received_beacons), this is the range of [0, 612) bytes.

2735	notif = kmemdup(notif_v1,
2736			offsetofend(struct iwl_wowlan_info_notif,
2737				    received_beacons),
2738			GFP_ATOMIC);

which evidently does not cover bytes 612 and 613 for members
tid_tear_down and station_id in struct iwl_wowlan_info_notif.
See below:

$ pahole -C iwl_wowlan_info_notif drivers/net/wireless/intel/iwlwifi/mvm/d3.o
struct iwl_wowlan_info_notif {
	struct iwl_wowlan_gtk_status_v3 gtk[2];          /*     0   488 */
	/* --- cacheline 7 boundary (448 bytes) was 40 bytes ago --- */
	struct iwl_wowlan_igtk_status igtk[2];           /*   488    80 */
	/* --- cacheline 8 boundary (512 bytes) was 56 bytes ago --- */
	__le64                     replay_ctr;           /*   568     8 */
	/* --- cacheline 9 boundary (576 bytes) --- */
	__le16                     pattern_number;       /*   576     2 */
	__le16                     reserved1;            /*   578     2 */
	__le16                     qos_seq_ctr[8];       /*   580    16 */
	__le32                     wakeup_reasons;       /*   596     4 */
	__le32                     num_of_gtk_rekeys;    /*   600     4 */
	__le32                     transmitted_ndps;     /*   604     4 */
	__le32                     received_beacons;     /*   608     4 */
	u8                         tid_tear_down;        /*   612     1 */
	u8                         station_id;           /*   613     1 */
	u8                         reserved2[2];         /*   614     2 */

	/* size: 616, cachelines: 10, members: 13 */
	/* last cacheline: 40 bytes */
};

Therefore, when the following assignments take place, actually no memory
has been allocated for those objects:

2743	notif->tid_tear_down = notif_v1->tid_tear_down;
2744	notif->station_id = notif_v1->station_id;

Fix this by allocating space for the whole notif object and zero out the
remaining space in memory after member station_id.

This also fixes the following -Warray-bounds issues:
 CC      drivers/net/wireless/intel/iwlwifi/mvm/d3.o
drivers/net/wireless/intel/iwlwifi/mvm/d3.c: In function ‘iwl_mvm_wait_d3_notif’:
drivers/net/wireless/intel/iwlwifi/mvm/d3.c:2743:30: warning: array subscript ‘struct iwl_wowlan_info_notif[0]’ is partly outside array bounds of ‘unsigned char[612]’ [-Warray-bounds=]
 2743 |                         notif->tid_tear_down = notif_v1->tid_tear_down;
      |
                 from drivers/net/wireless/intel/iwlwifi/mvm/d3.c:7:
In function ‘kmemdup’,
    inlined from ‘iwl_mvm_wait_d3_notif’ at drivers/net/wireless/intel/iwlwifi/mvm/d3.c:2735:12:
include/linux/fortify-string.h:765:16: note: object of size 612 allocated by ‘__real_kmemdup’
  765 |         return __real_kmemdup(p, size, gfp);
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/intel/iwlwifi/mvm/d3.c: In function ‘iwl_mvm_wait_d3_notif’:
drivers/net/wireless/intel/iwlwifi/mvm/d3.c:2744:30: warning: array subscript ‘struct iwl_wowlan_info_notif[0]’ is partly outside array bounds of ‘unsigned char[612]’ [-Warray-bounds=]
 2744 |                         notif->station_id = notif_v1->station_id;
      |                              ^~
In function ‘kmemdup’,
    inlined from ‘iwl_mvm_wait_d3_notif’ at drivers/net/wireless/intel/iwlwifi/mvm/d3.c:2735:12:
include/linux/fortify-string.h:765:16: note: object of size 612 allocated by ‘__real_kmemdup’
  765 |         return __real_kmemdup(p, size, gfp);
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Link: https://github.com/KSPP/linux/issues/306
Fixes: 905d50ddbc ("wifi: iwlwifi: mvm: support wowlan info notification version 2")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/ZHpGN555FwAKGduH@work
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-06-06 11:11:14 +02:00
Lorenzo Bianconi
ead449023d wifi: mt76: mt7996: fix possible NULL pointer dereference in mt7996_mac_write_txwi()
Fix possible NULL pointer dereference on mvif pointer in
mt7996_mac_write_txwi routine.

Fixes: 15ee62e737 ("wifi: mt76: mt7996: enable BSS_CHANGED_BASIC_RATES support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/2637628a84f42ad6d7b774e706f041d5b45c8cb5.1685269638.git.lorenzo@kernel.org
2023-06-01 16:17:33 +03:00
Ping-Ke Shih
b408f33b35 wifi: rtw89: remove redundant check of entering LPS
Originally, add this check rule to prevent entering LPS if more than one
vif (in station mode) connect to AP. Since we have checked this by previous
commit, remove this redundant check.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230527082939.11206-4-pkshih@realtek.com
2023-06-01 16:16:41 +03:00
Ping-Ke Shih
26a125f550 wifi: rtw89: correct PS calculation for SUPPORTS_DYNAMIC_PS
This driver relies on IEEE80211_CONF_PS of hw->conf.flags to turn off PS or
turn on dynamic PS controlled by driver and firmware. Though this would be
incorrect, it did work before because the flag is always recalculated until
the commit 28977e790b ("wifi: mac80211: skip powersave recalc if driver SUPPORTS_DYNAMIC_PS")
is introduced by kernel 5.20 to skip to recalculate IEEE80211_CONF_PS
of hw->conf.flags if driver sets SUPPORTS_DYNAMIC_PS.

Correct this by doing recalculation while BSS_CHANGED_PS is changed and
interface is added or removed. For now, it is allowed to enter PS only if
single one station vif is working, and it could possible to have PS per
vif after firmware can support it. Without this fix, driver doesn't
enter PS anymore that causes higher power consumption.

Fixes: e3ec7017f6 ("rtw89: add Realtek 802.11ax driver")
Cc: stable@vger.kernel.org # 6.1+
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230527082939.11206-3-pkshih@realtek.com
2023-06-01 16:16:41 +03:00
Ping-Ke Shih
3918dd0177 wifi: rtw88: correct PS calculation for SUPPORTS_DYNAMIC_PS
This driver relies on IEEE80211_CONF_PS of hw->conf.flags to turn off PS or
turn on dynamic PS controlled by driver and firmware. Though this would be
incorrect, it did work before because the flag is always recalculated until
the commit 28977e790b ("wifi: mac80211: skip powersave recalc if driver SUPPORTS_DYNAMIC_PS")
is introduced by kernel 5.20 to skip to recalculate IEEE80211_CONF_PS
of hw->conf.flags if driver sets SUPPORTS_DYNAMIC_PS.

Correct this by doing recalculation while BSS_CHANGED_PS is changed and
interface is added or removed. It is allowed to enter PS only if single
one station vif is working. Without this fix, driver doesn't enter PS
anymore that causes higher power consumption.

Fixes: bcde60e599 ("rtw88: remove misleading module parameter rtw_fw_support_lps")
Cc: stable@vger.kernel.org # 6.1+
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230527082939.11206-2-pkshih@realtek.com
2023-06-01 16:16:40 +03:00
Lorenzo Bianconi
30bc32c7c1 wifi: mt76: mt7615: fix possible race in mt7615_mac_sta_poll
Grab sta_poll_lock spinlock in mt7615_mac_sta_poll routine in order to
avoid possible races with mt7615_mac_add_txs() or mt7615_mac_fill_rx()
removing msta pointer from sta_poll_list.

Fixes: a621372a04 ("mt76: mt7615: rework mt7615_mac_sta_poll for usb code")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/48b23404b759de4f1db2ef85975c72a4aeb1097c.1684938695.git.lorenzo@kernel.org
2023-05-27 11:17:17 +03:00
Arnd Bergmann
212457ccbd wifi: b43: fix incorrect __packed annotation
clang warns about an unpacked structure inside of a packed one:

drivers/net/wireless/broadcom/b43/b43.h:654:4: error: field data within 'struct b43_iv' is less aligned than 'union (unnamed union at /home/arnd/arm-soc/drivers/net/wireless/broadcom/b43/b43.h:651:2)' and is usually due to 'struct b43_iv' being packed, which can lead to unaligned accesses [-Werror,-Wunaligned-access]

The problem here is that the anonymous union has the default alignment
from its members, apparently because the original author mixed up the
placement of the __packed attribute by placing it next to the struct
member rather than the union definition. As the struct itself is
also marked as __packed, there is no need to mark its members, so just
move the annotation to the inner type instead.

As Michael noted, the same problem is present in b43legacy, so
change both at the same time.

Acked-by: Michael Büsch <m@bues.ch>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Link: https://lore.kernel.org/oe-kbuild-all/202305160749.ay1HAoyP-lkp@intel.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230516183442.536589-1-arnd@kernel.org
2023-05-17 09:24:09 +03:00
Martin Blumenstingl
cb0ddaaa5d wifi: rtw88: sdio: Always use two consecutive bytes for word operations
The Allwinner sunxi-mmc controller cannot handle word (16 bit)
transfers. So and sdio_{read,write}w fails with messages like the
following example using an RTL8822BS (but the same problems were also
observed with RTL8822CS and RTL8723DS chips):
  rtw_8822bs mmc1:0001:1: Firmware version 27.2.0, H2C version 13
  sunxi-mmc 4021000.mmc: unaligned scatterlist: os f80 length 2
  sunxi-mmc 4021000.mmc: map DMA failed
  rtw_8822bs mmc1:0001:1: sdio read16 failed (0x10230): -22

Use two consecutive single byte accesses for word operations instead. It
turns out that upon closer inspection this is also what the vendor
driver does, even though it does have support for sdio_{read,write}w. So
we can conclude that the rtw88 chips do support word access but only on
SDIO controllers that also support it. Since there's no way to detect if
the controller supports word access or not the rtw88 sdio driver
switches to the easiest approach: avoiding word access.

Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Closes: https://lore.kernel.org/linux-wireless/527585e5-9cdd-66ed-c3af-6da162f4b720@lwfinger.net/
Reported-by: Rudi Heitbaum <rudi@heitbaum.com>
Link: https://github.com/LibreELEC/LibreELEC.tv/pull/7837#issue-1708469467
Fixes: 65371a3f14 ("wifi: rtw88: sdio: Add HCI implementation for SDIO based chipsets")
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230515195043.572375-1-martin.blumenstingl@googlemail.com
2023-05-17 09:09:41 +03:00
Zhengchao Shao
098abbd48e mac80211_hwsim: fix memory leak in hwsim_new_radio_nl
When parse_pmsr_capa failed in hwsim_new_radio_nl, the memory resources
applied for by pmsr_capa are not released. Add release processing to the
incorrect path.

Fixes: 92d13386ec ("mac80211_hwsim: add PMSR capability support")
Reported-by: syzbot+904ce6fbb38532d9795c@syzkaller.appspotmail.com
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230515092227.2691437-1-shaozhengchao@huawei.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-05-16 10:29:34 -07:00
Ariel Malamud
a8938bc881 wifi: iwlwifi: mvm: Add locking to the rate read flow
The rs_drv_get_rate flow reads the lq_sta to return the optimal rate
for tx frames. This read flow is not protected thereby leaving
a small window, a few instructions wide, open to contention by an
asynchronous rate update. Indeed this race condition was hit and the
update occurred in the middle of the read.

Fix this by locking the lq_sta struct during read.

Signed-off-by: Ariel Malamud <ariel.malamud@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230514120631.b52c9ed5c379.I15290b78e0d966c1b68278263776ca9de841d5fe@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-05-16 10:27:05 -07:00
Miri Korenblit
207be64f4e wifi: iwlwifi: Don't use valid_links to iterate sta links
This bitmap equals to zero when in a non-MLO mode, and then we won't
be iterating on any link. Use for_each_sta_active_link() instead, as
it handles also the case of non-MLO mode.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230514120631.f32a8c08730a.Ib02248cd0b7f2bc885f91005c3c110dd027f9dcd@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-05-16 10:27:05 -07:00
Johannes Berg
682b6dc29d wifi: iwlwifi: mvm: don't trust firmware n_channels
If the firmware sends us a corrupted MCC response with
n_channels much larger than the command response can be,
we might copy far too much (uninitialized) memory and
even crash if the n_channels is large enough to make it
run out of the one page allocated for the FW response.

Fix that by checking the lengths. Doing a < comparison
would be sufficient, but the firmware should be doing
it correctly, so check more strictly.

Fixes: dcaf9f5ecb ("iwlwifi: mvm: add MCC update FW API")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230514120631.d7b233139eb4.I51fd319df8e9d41881fc8450e83d78049518a79a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-05-16 10:27:05 -07:00
Alon Giladi
d0246a0e49 wifi: iwlwifi: mvm: fix OEM's name in the tas approved list
Fix a spelling mistake.

Fixes: 2856f623ce ("iwlwifi: mvm: Add list of OEMs allowed to use TAS")
Signed-off-by: Alon Giladi <alon.giladi@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230514120631.4090de6d1878.If9391ef6da78f1b2cc5eb6cb8f6965816bb7a7f5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-05-16 10:27:05 -07:00
Alon Giladi
eca7296d9a wifi: iwlwifi: fix OEM's name in the ppag approved list
Fix a spelling mistake.

Fixes: e8e10a37c5 ("iwlwifi: acpi: move ppag code from mvm to fw/acpi")
Signed-off-by: Alon Giladi <alon.giladi@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230514120631.fdd07f36a8bf.I223e5fb16ab5c95d504c3fdaffd0bd70affad1c2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-05-16 10:27:05 -07:00