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3 years agortw88: coex: upgrade coexistence A2DP mechanism
Ching-Te Ku [Thu, 26 Nov 2020 02:10:58 +0000 (10:10 +0800)]
rtw88: coex: upgrade coexistence A2DP mechanism

Add modifications for A2DP interoperability issue of TWS earphones.
Some TWS earphones has low buffer size, so it's necessary to reduce
the slot period to let it get data more frequently.
(e.g. use 4-slot to replace the original 2-slot method).

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126021059.11981-10-pkshih@realtek.com
3 years agortw88: coex: add action for coexistence in hardware initial
Ching-Te Ku [Thu, 26 Nov 2020 02:10:57 +0000 (10:10 +0800)]
rtw88: coex: add action for coexistence in hardware initial

The original setting misses some necessary configuration.
Make coexistence slot align to beacon and check the connection situation
to know if we need to extend WLAN slot or not.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126021059.11981-9-pkshih@realtek.com
3 years agortw88: coex: add function to avoid cck lock
Ching-Te Ku [Thu, 26 Nov 2020 02:10:56 +0000 (10:10 +0800)]
rtw88: coex: add function to avoid cck lock

Some AP will not follow the power save request, or it cannot stop
transmission until its queue is empty. It may bring the decreasing of
data rate.

WLAN firmware will count is the AP still leaked packet after power save
handshake was done or not to enable WLAN slot extend mechanism.

The extend WLAN slot mechanism will extend the WLAN slot after power save
handshake, 5 ms per times, maximum is 5 times to received the leaked packet
to avoid the rate lower down.

And if the transmission was already locked at CCK rate.
The extended WLAN slot can also increase the opportunity that we can
received the CCK's long packet and be released from CCK rate.

While BT multi-link status was finished, there is possible that it still
has some packet remained for seconds. Add a timer to remain the multi-link
mechanism to protect WLAN Rx.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126021059.11981-8-pkshih@realtek.com
3 years agortw88: coex: change the coexistence mechanism for WLAN connected
Ching-Te Ku [Thu, 26 Nov 2020 02:10:55 +0000 (10:10 +0800)]
rtw88: coex: change the coexistence mechanism for WLAN connected

Add a flag to make decision whether the mechanism
should go into free-run mode or not.
For now, it is always false, the flag assignment will
be implemented later.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126021059.11981-7-pkshih@realtek.com
3 years agortw88: coex: change the coexistence mechanism for HID
Ching-Te Ku [Thu, 26 Nov 2020 02:10:54 +0000 (10:10 +0800)]
rtw88: coex: change the coexistence mechanism for HID

Add TDMA slot type setting for later usage.
Since the transmission of HID profile is very frequently,
it may bring a big impact to WLAN performance.
To change slot type, it can make mechanism be more flexible.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126021059.11981-6-pkshih@realtek.com
3 years agortw88: coex: update AFH information while in free-run mode
Ching-Te Ku [Thu, 26 Nov 2020 02:10:53 +0000 (10:10 +0800)]
rtw88: coex: update AFH information while in free-run mode

In free run mode, this WLAN info updating is only related to AFH
information, not related to the connection state, which is the current
implementation.
Always update WLAN info in free run mode now.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126021059.11981-5-pkshih@realtek.com
3 years agortw88: coex: update the mechanism for A2DP + PAN
Ching-Te Ku [Thu, 26 Nov 2020 02:10:52 +0000 (10:10 +0800)]
rtw88: coex: update the mechanism for A2DP + PAN

Update A2DP+PAN+WL mechanism for CPT(Coexistence Performance Test) to
enhance WL/BT performance at the environment that some specific AP are
existing.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126021059.11981-4-pkshih@realtek.com
3 years agortw88: coex: add debug message
Ching-Te Ku [Thu, 26 Nov 2020 02:10:51 +0000 (10:10 +0800)]
rtw88: coex: add debug message

Add message for debugging usage and the program flow is no change.
Add a variable reserved for WLAN firmware synchronize.
Add a group of variable to save BT packet counter, it will be
assigned as mechanism judgment in the future. Now it is just for
debug usage.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126021059.11981-3-pkshih@realtek.com
3 years agortw88: coex: run coexistence when WLAN entering/leaving LPS
Ching-Te Ku [Thu, 26 Nov 2020 02:10:50 +0000 (10:10 +0800)]
rtw88: coex: run coexistence when WLAN entering/leaving LPS

When WLAN entering or leaving, it's necessary to run coexistence mechanism
to ensure the setting matched current status.
Without calling rtw_coex_run_coex(), WLAN poor throughput or bad A2DP
quality may happen.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126021059.11981-2-pkshih@realtek.com
3 years agoRevert "rtl8xxxu: Add Buffalo WI-U3-866D to list of supported devices"
Tokunori Ikegami [Sat, 21 Nov 2020 00:34:11 +0000 (09:34 +0900)]
Revert "rtl8xxxu: Add Buffalo WI-U3-866D to list of supported devices"

This reverts commit 28606150768a20b291a35dbbbb0ab4dd7d4739db.
Since actually Buffalo WI-U3-866D is falied to power on with the change.

The rtl8812au driver code to power on is same with the rtl8821a code.
But the rtl8821ae included rtl8821a does not support USB interface.
So seems that rtl8812au should be supported by rt1l8821a code with USB.

Signed-off-by: Tokunori Ikegami <ikegami.t@gmail.com>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201121003411.9450-1-ikegami.t@gmail.com
3 years agocw1200: fix missing destroy_workqueue() on error in cw1200_init_common
Qinglang Miao [Thu, 19 Nov 2020 07:08:42 +0000 (15:08 +0800)]
cw1200: fix missing destroy_workqueue() on error in cw1200_init_common

Add the missing destroy_workqueue() before return from
cw1200_init_common in the error handling case.

Fixes: a910e4a94f69 ("cw1200: add driver for the ST-E CW1100 & CW1200 WLAN chipsets")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119070842.1011-1-miaoqinglang@huawei.com
3 years agomwifiex: Remove duplicated REG_PORT definition
Jisheng Zhang [Thu, 19 Nov 2020 02:12:04 +0000 (10:12 +0800)]
mwifiex: Remove duplicated REG_PORT definition

The REG_PORT is defined twice, so remove one of them.

Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119101204.72fd5f0a@xhacker.debian
3 years agortlwifi: rtl8723ae: avoid accessing the data mapped to streaming DMA
Jia-Ju Bai [Thu, 19 Nov 2020 01:52:18 +0000 (09:52 +0800)]
rtlwifi: rtl8723ae: avoid accessing the data mapped to streaming DMA

In rtl8723e_tx_fill_cmddesc(), skb->data is mapped to streaming DMA on
line 531:
  dma_addr_t mapping = dma_map_single(..., skb->data, ...);

On line 534, skb->data is assigned to hdr after cast:
  struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);

Then hdr->frame_control is accessed on line 535:
  __le16 fc = hdr->frame_control;

This DMA access may cause data inconsistency between CPU and hardwre.

To fix this bug, hdr->frame_control is accessed before the DMA mapping.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119015218.12220-1-baijiaju1990@gmail.com
3 years agortlwifi: rtl8192de: avoid accessing the data mapped to streaming DMA
Jia-Ju Bai [Thu, 19 Nov 2020 01:52:05 +0000 (09:52 +0800)]
rtlwifi: rtl8192de: avoid accessing the data mapped to streaming DMA

In rtl92de_tx_fill_cmddesc(), skb->data is mapped to streaming DMA on
line 667:
  dma_addr_t mapping = dma_map_single(..., skb->data, ...);

On line 669, skb->data is assigned to hdr after cast:
  struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);

Then hdr->frame_control is accessed on line 670:
  __le16 fc = hdr->frame_control;

This DMA access may cause data inconsistency between CPU and hardwre.

To fix this bug, hdr->frame_control is accessed before the DMA mapping.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119015205.12162-1-baijiaju1990@gmail.com
3 years agortlwifi: rtl8192ce: avoid accessing the data mapped to streaming DMA
Jia-Ju Bai [Thu, 19 Nov 2020 01:51:51 +0000 (09:51 +0800)]
rtlwifi: rtl8192ce: avoid accessing the data mapped to streaming DMA

In rtl92ce_tx_fill_cmddesc(), skb->data is mapped to streaming DMA on
line 530:
  dma_addr_t mapping = dma_map_single(..., skb->data, ...);

On line 533, skb->data is assigned to hdr after cast:
  struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);

Then hdr->frame_control is accessed on line 534:
  __le16 fc = hdr->frame_control;

This DMA access may cause data inconsistency between CPU and hardwre.

To fix this bug, hdr->frame_control is accessed before the DMA mapping.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119015151.12110-1-baijiaju1990@gmail.com
3 years agortlwifi: rtl8188ee: avoid accessing the data mapped to streaming DMA
Jia-Ju Bai [Thu, 19 Nov 2020 01:51:27 +0000 (09:51 +0800)]
rtlwifi: rtl8188ee: avoid accessing the data mapped to streaming DMA

In rtl88ee_tx_fill_cmddesc(), skb->data is mapped to streaming DMA on
line 677:
  dma_addr_t mapping = dma_map_single(..., skb->data, ...);

On line 680, skb->data is assigned to hdr after cast:
  struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);

Then hdr->frame_control is accessed on line 681:
  __le16 fc = hdr->frame_control;

This DMA access may cause data inconsistency between CPU and hardwre.

To fix this bug, hdr->frame_control is accessed before the DMA mapping.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201119015127.12033-1-baijiaju1990@gmail.com
3 years agomwifiex: Fix fall-through warnings for Clang
Gustavo A. R. Silva [Tue, 17 Nov 2020 16:09:58 +0000 (10:09 -0600)]
mwifiex: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements instead of
letting the code fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201117160958.GA18807@embeddedor
3 years agorsi: fix error return code in rsi_reset_card()
Zhang Changzhong [Tue, 17 Nov 2020 03:07:34 +0000 (11:07 +0800)]
rsi: fix error return code in rsi_reset_card()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 17ff2c794f39 ("rsi: reset device changes for 9116")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1605582454-39649-1-git-send-email-zhangchangzhong@huawei.com
3 years agobrcmsmac: ampdu: Check BA window size before checking block ack
Dmitry Safonov [Mon, 16 Nov 2020 03:06:35 +0000 (03:06 +0000)]
brcmsmac: ampdu: Check BA window size before checking block ack

bindex can be out of BA window (64):
  tid 0 seq 2983, start_seq 2915, bindex 68, index 39
  tid 0 seq 2984, start_seq 2915, bindex 69, index 40
  tid 0 seq 2985, start_seq 2915, bindex 70, index 41
  tid 0 seq 2986, start_seq 2915, bindex 71, index 42
  tid 0 seq 2879, start_seq 2915, bindex 4060, index 63
  tid 0 seq 2854, start_seq 2915, bindex 4035, index 38
  tid 0 seq 2795, start_seq 2915, bindex 3976, index 43
  tid 0 seq 2989, start_seq 2924, bindex 65, index 45
  tid 0 seq 2992, start_seq 2924, bindex 68, index 48
  tid 0 seq 2993, start_seq 2924, bindex 69, index 49
  tid 0 seq 2994, start_seq 2924, bindex 70, index 50
  tid 0 seq 2997, start_seq 2924, bindex 73, index 53
  tid 0 seq 2795, start_seq 2941, bindex 3950, index 43
  tid 0 seq 2921, start_seq 2941, bindex 4076, index 41
  tid 0 seq 2929, start_seq 2941, bindex 4084, index 49
  tid 0 seq 3011, start_seq 2946, bindex 65, index 3
  tid 0 seq 3012, start_seq 2946, bindex 66, index 4
  tid 0 seq 3013, start_seq 2946, bindex 67, index 5

In result isset() will try to dereference something on the stack,
causing panics:
  BUG: unable to handle page fault for address: ffffa742800ed01f
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 6a4e9067 P4D 6a4e9067 PUD 6a4ec067 PMD 6a4ed067 PTE 0
  Oops: 0000 [#1] PREEMPT SMP PTI
  CPU: 1 PID: 0 Comm: swapper/1 Kdump: loaded Not tainted 5.8.5-arch1-1-kdump #1
  Hardware name: Apple Inc. MacBookAir3,1/Mac-942452F5819B1C1B, BIOS    MBA31.88Z.0061.B07.1201241641 01/24/12
  RIP: 0010:brcms_c_ampdu_dotxstatus+0x343/0x9f0 [brcmsmac]
  Code: 54 24 20 66 81 e2 ff 0f 41 83 e4 07 89 d1 0f b7 d2 66 c1 e9 03 0f b7 c9 4c 8d 5c 0c 48 49 8b 4d 10 48 8b 79 68 41 57 44 89 e1 <41> 0f b6 33 41 d3 e0 48 c7 c1 38 e0 ea c0 48 83 c7 10 44 21 c6 4c
  RSP: 0018:ffffa742800ecdd0 EFLAGS: 00010207
  RAX: 0000000000000019 RBX: 000000000000000b RCX: 0000000000000006
  RDX: 0000000000000ffe RSI: 0000000000000004 RDI: ffff8fc6ad776800
  RBP: ffff8fc6855acb00 R08: 0000000000000001 R09: 00000000000005d9
  R10: 00000000fffffffe R11: ffffa742800ed01f R12: 0000000000000006
  R13: ffff8fc68d75a000 R14: 00000000000005db R15: 0000000000000019
  FS:  0000000000000000(0000) GS:ffff8fc6aad00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: ffffa742800ed01f CR3: 000000002480a000 CR4: 00000000000406e0
  Call Trace:
   <IRQ>
   brcms_c_dpc+0xb46/0x1020 [brcmsmac]
   ? wlc_intstatus+0xc8/0x180 [brcmsmac]
   ? __raise_softirq_irqoff+0x1a/0x80
   brcms_dpc+0x37/0xd0 [brcmsmac]
   tasklet_action_common.constprop.0+0x51/0xb0
   __do_softirq+0xff/0x340
   ? handle_level_irq+0x1a0/0x1a0
   asm_call_on_stack+0x12/0x20
   </IRQ>
   do_softirq_own_stack+0x5f/0x80
   irq_exit_rcu+0xcb/0x120
   common_interrupt+0xd1/0x200
   asm_common_interrupt+0x1e/0x40
  RIP: 0010:cpuidle_enter_state+0xb3/0x420

Check if the block is within BA window and only then check block's
status. Otherwise as Behan wrote: "When I came back to Dublin I
was courtmartialed in my absence and sentenced to death in my absence,
so I said they could shoot me in my absence."

Also reported:
https://bbs.archlinux.org/viewtopic.php?id=258428
https://lore.kernel.org/linux-wireless/87tuwgi92n.fsf@yujinakao.com/

Reported-by: Yuji Nakao <contact@yujinakao.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201116030635.645811-1-dima@arista.com
3 years agobrcmfmac: Fix incorrect type in assignment
Remi Depommier [Mon, 16 Nov 2020 00:16:39 +0000 (19:16 -0500)]
brcmfmac: Fix incorrect type in assignment

The left-hand side of the assignment from cpu_to_le32() should be of
type __le32. This commit clears the warning reported by sparse when
building with C=1 CF="-D__CHECK_ENDIAN__".

Fixes: d56fd83cf99c ("brcmfmac: fix SDIO access for big-endian host")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Remi Depommier <rde@setrix.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201116001639.31958-1-rde@setrix.com
3 years agoqtnfmac: fix error return code in qtnf_pcie_probe()
Wang Hai [Sat, 14 Nov 2020 12:33:47 +0000 (20:33 +0800)]
qtnfmac: fix error return code in qtnf_pcie_probe()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: b7da53cd6cd1 ("qtnfmac_pcie: use single PCIe driver for all platforms")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201114123347.29632-1-wanghai38@huawei.com
3 years agortlwifi: rtl8192de: remove the useless value assignment
Kaixu Xia [Sat, 14 Nov 2020 05:45:35 +0000 (13:45 +0800)]
rtlwifi: rtl8192de: remove the useless value assignment

The variable u4tmp is overwritten by the following call and the assignment
is useless, so remove it.

Reported-by: Tosk Robot <tencent_os_robot@tencent.com>
Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1605332735-9648-1-git-send-email-kaixuxia@tencent.com
3 years agoorinoco: Annotate ezusb_read_ltv()
Sebastian Andrzej Siewior [Fri, 13 Nov 2020 21:22:52 +0000 (22:22 +0100)]
orinoco: Annotate ezusb_read_ltv()

ezusb_read_ltv() is always invoked via the ->read_ltv() callback. This
callback is mostly invoked under orinoco_lock() which disables BH.

There are a few invocations during probe which occur in preemptible
context via:
   ezusb_probe() -> orinoco_init() -> determine_fw_capabilities()

Extend `hermes_ops' with the ->read_ltv_pr callback which is implemented
with the same callback like ->read_ltv on `hermes_ops_local'.
On `ezusb_ops' ->read_ltv is used for callbacks under the lock which
need to poll.
The new ->read_ltv_pr() is used in the preemptible context in which it
is possible to wait for the completion. Provide HERMES_READ_RECORD_PR()
and hermes_read_wordrec_pr() which behave like their non _pr equivalents
and invoke ->read_ltv_pr().

This removes the last user of ezusb_req_ctx_wait() and can now be
removed.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201113212252.2243570-11-bigeasy@linutronix.de
3 years agoorinoco: Annotate ezusb_docmd_wait()
Sebastian Andrzej Siewior [Fri, 13 Nov 2020 21:22:51 +0000 (22:22 +0100)]
orinoco: Annotate ezusb_docmd_wait()

All invocations of ezusb_docmd_wait() happen via ->cmd_wait(). This
callback is always invoked under the orinoco_lock() which disables BH.

Use ezusb_req_ctx_wait_poll() for ezusb_docmd_wait() because it must not
sleep.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201113212252.2243570-10-bigeasy@linutronix.de
3 years agoorinoco: Remove ezusb_doicmd_wait()
Sebastian Andrzej Siewior [Fri, 13 Nov 2020 21:22:50 +0000 (22:22 +0100)]
orinoco: Remove ezusb_doicmd_wait()

ezusb_doicmd_wait() is invoked via ->init_cmd_wait() callback.
This callback is only invoked hermesi_program_init() and
hermesi_program_end() which are the ->program_init() and ->program_end()
callbacks as assigned by `hermes_ops_local'. They are never used by the
USB interface since the USB interface provides its own set of callbacks
by `ezusb_ops'.

Replace ezusb_doicmd_wait() with a warning in case I missed the obvious.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201113212252.2243570-9-bigeasy@linutronix.de
3 years agoorinoco: Annotate ezusb_write_ltv()
Sebastian Andrzej Siewior [Fri, 13 Nov 2020 21:22:49 +0000 (22:22 +0100)]
orinoco: Annotate ezusb_write_ltv()

All invocation of ezusb_write_ltv() happen via ->write_ltv() and are
performed under the orinoco_lock() which disables BH.

Use ezusb_req_ctx_wait_poll() for ezusb_write_ltv() because it must not
sleep.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201113212252.2243570-8-bigeasy@linutronix.de
3 years agoorinoco: Annotate ezusb_read_pda()
Sebastian Andrzej Siewior [Fri, 13 Nov 2020 21:22:48 +0000 (22:22 +0100)]
orinoco: Annotate ezusb_read_pda()

ezusb_read_pda() is invoked via ->read_pda() while firmware is loaded in
preemtible context.

Use ezusb_req_ctx_wait_compl() in ezusb_read_pda().

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201113212252.2243570-7-bigeasy@linutronix.de
3 years agoorinoco: Annotate firmware loading
Sebastian Andrzej Siewior [Fri, 13 Nov 2020 21:22:47 +0000 (22:22 +0100)]
orinoco: Annotate firmware loading

The ezusb_program() is invoked via ->program() in preemptible
context during firmware loading. This is also true for the
->program_init() and ->program_end() callback.

Use ezusb_req_ctx_wait_compl() in ezusb_program_init(),
ezusb_program_bytes(), ezusb_program_end() which are part of firmware
loading during device probe.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201113212252.2243570-6-bigeasy@linutronix.de
3 years agoorinoco: Annotate ezusb_init()
Sebastian Andrzej Siewior [Fri, 13 Nov 2020 21:22:46 +0000 (22:22 +0100)]
orinoco: Annotate ezusb_init()

ezusb_init() is always invoked in preemptible context during device
probe. Only orinoco_up() -> orinoco_reinit_firmware() may invoke the
function from atomic context but this is never used for the USB
interface.

Use ezusb_req_ctx_wait_compl() for the ezusb_write_ltv() and
ezusb_docmd_wait() invocations from within ezusb_init().
Preserve the generic versions which have still other user via the
callback.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201113212252.2243570-5-bigeasy@linutronix.de
3 years agoorinoco: Annotate ezusb_xmit()
Sebastian Andrzej Siewior [Fri, 13 Nov 2020 21:22:45 +0000 (22:22 +0100)]
orinoco: Annotate ezusb_xmit()

ezusb_xmit() sets ->in_rid in its request which means it does not wait
for an answer.

Use the ezusb_req_ctx_wait_skip() to denote that an answer is not
expected.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201113212252.2243570-4-bigeasy@linutronix.de
3 years agoorinoco: Prepare stubs for in_interrupt() removal
Sebastian Andrzej Siewior [Fri, 13 Nov 2020 21:22:44 +0000 (22:22 +0100)]
orinoco: Prepare stubs for in_interrupt() removal

ezusb_access_ltv() sends the prepared request to the USB device.
Requests which have ->in_rid set expect an answer from the USB device
and the function has to wait until the URB with the answer arrives.
The function uses in_interrupt() to determine if it can simply sleep on
the completion and be woken up once the answer arrives or if it needs to
poll on the completion.

The usage of in_interrupt() in drivers is phased out and Linus clearly
requested that code which changes behaviour depending on context should
either be separated or the context be conveyed in an argument passed by the
caller, which usually knows the context.

Aside of that in_interrupt() is not correct as it does not catch preempt
disabled regions in which sleeping is also not allowed.

Provide stubs which can be used as a replacement. The current default is
the current behaviour which sleeps/polls depending on in_interrupt().
The goal is to audit all callers and use either the poll or sleep
version.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201113212252.2243570-3-bigeasy@linutronix.de
3 years agoorinoco: Move context allocation after processing the skb
Sebastian Andrzej Siewior [Fri, 13 Nov 2020 21:22:43 +0000 (22:22 +0100)]
orinoco: Move context allocation after processing the skb

ezusb_xmit() allocates a context which is leaked if
orinoco_process_xmit_skb() returns an error.

Move ezusb_alloc_ctx() after the invocation of
orinoco_process_xmit_skb() because the context is not needed so early.
ezusb_access_ltv() will cleanup the context in case of an error.

Fixes: bac6fafd4d6a0 ("orinoco: refactor xmit path")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201113212252.2243570-2-bigeasy@linutronix.de
3 years agobrcmfmac: fix error return code in brcmf_cfg80211_connect()
Zhang Changzhong [Fri, 13 Nov 2020 06:28:16 +0000 (14:28 +0800)]
brcmfmac: fix error return code in brcmf_cfg80211_connect()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 3b1e0a7bdfee ("brcmfmac: add support for SAE authentication offload")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Reviewed-by: Chi-hsien Lin <chi-hsien.lin@infineon.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1605248896-16812-1-git-send-email-zhangchangzhong@huawei.com
3 years agocw1200: replace a set of atomic_add()
Yejune Deng [Tue, 10 Nov 2020 06:58:11 +0000 (14:58 +0800)]
cw1200: replace a set of atomic_add()

a set of atomic_inc() looks more readable

Signed-off-by: Yejune Deng <yejune.deng@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1604991491-27908-1-git-send-email-yejune.deng@gmail.com
3 years agortw88: wow: print key type when failing
Brian Norris [Thu, 12 Nov 2020 18:14:32 +0000 (10:14 -0800)]
rtw88: wow: print key type when failing

It's much easier to spot what went wrong when you print out the
unhandled key type.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112181432.2958021-1-briannorris@chromium.org
3 years agortw88: coex: change the decode method from firmware
Ching-Te Ku [Thu, 12 Nov 2020 03:14:30 +0000 (11:14 +0800)]
rtw88: coex: change the decode method from firmware

Fix sometimes FW information will be parsed as wrong value,
do a correction of sign bit to show the correct information.
(Ex, Value should be 20, but it shows 236.)

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-12-pkshih@realtek.com
3 years agortw88: coex: remove unnecessary WLAN slot extend
Ching-Te Ku [Thu, 12 Nov 2020 03:14:29 +0000 (11:14 +0800)]
rtw88: coex: remove unnecessary WLAN slot extend

Remove extend 5 ms related operation at WLAN media status notify.
The mechanism should be enable only while DUT connect to a AP that it
doesn't follow our power save control or its rate is decreasing unusually
sensitive. So we extend a extra slot to save the transmission rate.

The original logic will always extend WLAN slot.
It will lead to BT slot always decrease 5 ms.

Remove write scoreboard action at WLAN media status notify.
It has already done in WLAN info notify.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-11-pkshih@realtek.com
3 years agortw88: coex: remove write scan bit to scoreboard in scan and connect notify
Ching-Te Ku [Thu, 12 Nov 2020 03:14:28 +0000 (11:14 +0800)]
rtw88: coex: remove write scan bit to scoreboard in scan and connect notify

Remove some action which were writing scan bit to scoreboard,
since these behaviors are redundant.
It is already done in WLAN info notify.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-10-pkshih@realtek.com
3 years agortw88: coex: fix BT performance drop during initial/power-on step
Ching-Te Ku [Thu, 12 Nov 2020 03:14:27 +0000 (11:14 +0800)]
rtw88: coex: fix BT performance drop during initial/power-on step

Force set the coexistence to BT high priority during
WLAN initial/power-on step. Since the duration the related setting
may be not ready yet.

The score board is not related to scan when initialing, remove the scan
parameter.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-9-pkshih@realtek.com
3 years agortw88: coex: Change antenna setting to enhance free-run performance
Ching-Te Ku [Thu, 12 Nov 2020 03:14:26 +0000 (11:14 +0800)]
rtw88: coex: Change antenna setting to enhance free-run performance

While the mechanism goes to 2G_free_run or WL5G_BT2G,
set BT to hardware PTA mode to get a more efficiently performance.

Add a flag to indicate antenna switch is supported or not so
that the IC serials which has different antenna structure can
set antenna correctly.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-8-pkshih@realtek.com
3 years agortw88: coex: update the TDMA parameter when leave LPS
Ching-Te Ku [Thu, 12 Nov 2020 03:14:25 +0000 (11:14 +0800)]
rtw88: coex: update the TDMA parameter when leave LPS

The updated parameter and original parameter all means TDMA-OFF.
The original setting write 0x8 to firmware, but it only works for
some old IC series.
To avoid the confusing, update a proper parameter.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-7-pkshih@realtek.com
3 years agortw88: coex: add the mechanism for RF4CE
Ching-Te Ku [Thu, 12 Nov 2020 03:14:24 +0000 (11:14 +0800)]
rtw88: coex: add the mechanism for RF4CE

Add the related coexistence mechanism about RF4CE and WLAN connected
flag to decide control packet is whether higher or normal priority.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-6-pkshih@realtek.com
3 years agortw88: coex: Add force flag for coexistence table function
Ching-Te Ku [Thu, 12 Nov 2020 03:14:23 +0000 (11:14 +0800)]
rtw88: coex: Add force flag for coexistence table function

Because sometimes hardware action may be unpredictable.
(Ex: after WLAN LPS...etc)
Add a check mechanism if the action is triggered by
some concerned case, it can force to write the table again.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-5-pkshih@realtek.com
3 years agortw88: coex: add write scoreboard action when WLAN in critical procedure
Ching-Te Ku [Thu, 12 Nov 2020 03:14:22 +0000 (11:14 +0800)]
rtw88: coex: add write scoreboard action when WLAN in critical procedure

When WLAN in critical procedure, such as connecting, scan and so on,
coexistence will notify BT by scoreboard.
While BT firmware received the scoreboard interrupt, it will adjust
BT page priority lower to avoid WLAN critical procedure suffering impact.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-4-pkshih@realtek.com
3 years agortw88: coex: remove unnecessary feature/function
Ching-Te Ku [Thu, 12 Nov 2020 03:14:21 +0000 (11:14 +0800)]
rtw88: coex: remove unnecessary feature/function

Because the WLAN RSSI report feature had been implemented at WLAN link info
update function, it is redundant to update WLAN RSSI while BT is updating
link info, so remove the update WLAN RSSI part.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-3-pkshih@realtek.com
3 years agortw88: coex: update TDMA settings for different beacon interval
Ching-Te Ku [Thu, 12 Nov 2020 03:14:20 +0000 (11:14 +0800)]
rtw88: coex: update TDMA settings for different beacon interval

Add considering for different WLAN beacon interval in coexistence
mechanism.
Because the WLAN beacon period may be not 100 ms, so it's necessary
to consider any beacon period and set timer according to the interval.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201112031430.4846-2-pkshih@realtek.com
3 years agortw88: add CCK_PD debug log
Ping-Ke Shih [Mon, 9 Nov 2020 09:01:23 +0000 (17:01 +0800)]
rtw88: add CCK_PD debug log

In order to help debugging in field, we add some log messages.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109090123.9254-2-pkshih@realtek.com
3 years agortw88: 8723d: add cck pd seetings
Ping-Ke Shih [Mon, 9 Nov 2020 09:01:22 +0000 (17:01 +0800)]
rtw88: 8723d: add cck pd seetings

CCK PD can reduce the number of false alarm of the CCK rates.
It dynamically adjusts the power threshold and CS ratio.
The values are compared to the values of the previous level, if
the level is changed, set new values of power threshold and CS
ratio.

Implement rtw_chip_ops::cck_pd_set() for 8723d.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109090123.9254-1-pkshih@realtek.com
3 years agortw88: coex: simplify the setting and condition about WLAN TX limitation
Ching-Te Ku [Mon, 9 Nov 2020 08:59:09 +0000 (16:59 +0800)]
rtw88: coex: simplify the setting and condition about WLAN TX limitation

Life time related setting is related to WLAN active port number,
not its mode. The original setting may cause poor WLAN performance.

In most case, WLAN TX limitation is helpful for BT in coexistence
scenario, especially for A2DP quality.
So this is necessary to fix the setting and constraint it.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109085909.9143-12-pkshih@realtek.com
3 years agortw88: coex: add debug message
Ching-Te Ku [Mon, 9 Nov 2020 08:59:08 +0000 (16:59 +0800)]
rtw88: coex: add debug message

Since coexistence issue is related to WL/BT and each digital/analog/rf,
and these issues are often critical with low failure rate, add more
debugging information is helpful to clarify issues.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109085909.9143-11-pkshih@realtek.com
3 years agortw88: coex: update WLAN 5G AFH parameter for 8822b
Ching-Te Ku [Mon, 9 Nov 2020 08:59:07 +0000 (16:59 +0800)]
rtw88: coex: update WLAN 5G AFH parameter for 8822b

Adaptive Frequency Hopping(AFH) is a method of transmitting
radio signals by rapidly changing the carrier frequency among
many distinct frequencies, which can avoid interference.
Add this feature to update AFH parameter for 8822b.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109085909.9143-10-pkshih@realtek.com
3 years agortw88: coex: change the parameter for A2DP when WLAN connecting
Ching-Te Ku [Mon, 9 Nov 2020 08:59:06 +0000 (16:59 +0800)]
rtw88: coex: change the parameter for A2DP when WLAN connecting

The original mechanism may cause A2DP glitch during WiFi connecting AP.
Because the original TDMA may decrease too much A2DP slot.
This patch add a timer and variable to let the case A2DP + WL_Connecting
performed more well.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109085909.9143-9-pkshih@realtek.com
3 years agortw88: coex: modified for BT info notify
Ching-Te Ku [Mon, 9 Nov 2020 08:59:05 +0000 (16:59 +0800)]
rtw88: coex: modified for BT info notify

Add counter to count BT info C2H command for debug usage.
It could present the C2H channel situation.

Fix BT IQK state decision condition for counting.
The original condition is wrong, it would cause coexistence mechanism
going to the wrong strategy.

New format supports getting TDMA parameter from WL firmware, since
coexistence needs current TDMA parameter to decide strategy.

Remove unnecessary operations about scoreboard, it is not a must for
current version.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109085909.9143-8-pkshih@realtek.com
3 years agortw88: coex: add separate flag for manual control
Ching-Te Ku [Mon, 9 Nov 2020 08:59:04 +0000 (16:59 +0800)]
rtw88: coex: add separate flag for manual control

The original stop_dm flag is shared with the wifi and coexistence
mechanism internal usage, which represent two meanings, and makes
developers hard to debug.
Add a new flag manual_control for coexistence mechanism usage only.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109085909.9143-7-pkshih@realtek.com
3 years agortw88: coex: Modify the timing of set_ant_path/set_rf_para
Ching-Te Ku [Mon, 9 Nov 2020 08:59:03 +0000 (16:59 +0800)]
rtw88: coex: Modify the timing of set_ant_path/set_rf_para

To make sure the related ANT/RF_PARA setting will be expected result in COEX.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109085909.9143-6-pkshih@realtek.com
3 years agortw88: coex: coding style adjustment
Ching-Te Ku [Mon, 9 Nov 2020 08:59:02 +0000 (16:59 +0800)]
rtw88: coex: coding style adjustment

Adjust space and comments, and fix "line over 80 characters" warnings
reported by checkpatch.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109085909.9143-5-pkshih@realtek.com
3 years agortw88: coex: reduce magic number
Ching-Te Ku [Mon, 9 Nov 2020 08:59:01 +0000 (16:59 +0800)]
rtw88: coex: reduce magic number

Use macro definition to replace magic number.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109085909.9143-4-pkshih@realtek.com
3 years agortw88: coex: update coex parameter to improve A2DP quality
Ching-Te Ku [Mon, 9 Nov 2020 08:59:00 +0000 (16:59 +0800)]
rtw88: coex: update coex parameter to improve A2DP quality

Update COEX parameters and logic to enhance WL/BT performance
while WL_Busy + A2DP in a less interference environment.
It can avoid the interference comes cross from each other
and earned more performance.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109085909.9143-3-pkshih@realtek.com
3 years agortw88: coex: fixed some wrong register definition and setting
Ching-Te Ku [Mon, 9 Nov 2020 08:58:59 +0000 (16:58 +0800)]
rtw88: coex: fixed some wrong register definition and setting

Some register definition and bit definition were incorrect.
e.g. REG_BT_COEX_V2 should be word alignment to meet the coding style.
e.g. set REG_BT_TDMA_TIME[5:0]=0x5,
But the original is to set REG_BT_TDMA_TIME[7:0]=0x5.
This will cause unexpected hardware behavior.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201109085909.9143-2-pkshih@realtek.com
3 years agortlwifi: fix spelling typo of workaround
Wang Qing [Sat, 7 Nov 2020 08:40:37 +0000 (16:40 +0800)]
rtlwifi: fix spelling typo of workaround

workarould -> workaround

Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1604738439-24794-1-git-send-email-wangqing@vivo.com
3 years agorsi: Clean up loop in the interrupt handler
Marek Vasut [Tue, 3 Nov 2020 18:09:41 +0000 (19:09 +0100)]
rsi: Clean up loop in the interrupt handler

The inner do { ... } while loop is completely useless, all it does
is iterate over a switch-case statement, one bit at a time. This
can easily be replaced by simple if (status & bit) { ... } tests
for each bit. No functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Angus Ainslie <angus@akkea.ca>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Martin Kepplinger <martink@posteo.de>
Cc: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Cc: Siva Rebbagondla <siva8118@gmail.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201103180941.443528-2-marex@denx.de
3 years agorsi: Move card interrupt handling to RX thread
Marek Vasut [Tue, 3 Nov 2020 18:09:40 +0000 (19:09 +0100)]
rsi: Move card interrupt handling to RX thread

The interrupt handling of the RS911x is particularly heavy. For each RX
packet, the card does three SDIO transactions, one to read interrupt
status register, one to RX buffer length, one to read the RX packet(s).
This translates to ~330 uS per one cycle of interrupt handler. In case
there is more incoming traffic, this will be more.

The drivers/mmc/core/sdio_irq.c has the following comment, quote "Just
like traditional hard IRQ handlers, we expect SDIO IRQ handlers to be
quick and to the point, so that the holding of the host lock does not
cover too much work that doesn't require that lock to be held."

The RS911x interrupt handler does not fit that. This patch therefore
changes it such that the entire IRQ handler is moved to the RX thread
instead, and the interrupt handler only wakes the RX thread.

This is OK, because the interrupt handler only does things which can
also be done in the RX thread, that is, it checks for firmware loading
error(s), it checks buffer status, it checks whether a packet arrived
and if so, reads out the packet and passes it to network stack.

Moreover, this change permits removal of a code which allocated an
skbuff only to get 4-byte-aligned buffer, read up to 8kiB of data
into the skbuff, queue this skbuff into local private queue, then in
RX thread, this buffer is dequeued, the data in the skbuff as passed
to the RSI driver core, and the skbuff is deallocated. All this is
replaced by directly calling the RSI driver core with local buffer.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Angus Ainslie <angus@akkea.ca>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Martin Kepplinger <martink@posteo.de>
Cc: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Cc: Siva Rebbagondla <siva8118@gmail.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201103180941.443528-1-marex@denx.de
3 years agomwifiex: pcie: skip cancel_work_sync() on reset failure path
Tsuchiya Yuto [Wed, 28 Oct 2020 14:23:46 +0000 (23:23 +0900)]
mwifiex: pcie: skip cancel_work_sync() on reset failure path

If a reset is performed, but even the reset fails for some reasons (e.g.,
on Surface devices, the fw reset requires another quirks),
cancel_work_sync() hangs in mwifiex_cleanup_pcie().

    # firmware went into a bad state
    [...]
    [ 1608.281690] mwifiex_pcie 0000:03:00.0: info: shutdown mwifiex...
    [ 1608.282724] mwifiex_pcie 0000:03:00.0: rx_pending=0, tx_pending=1, cmd_pending=0
    [ 1608.292400] mwifiex_pcie 0000:03:00.0: PREP_CMD: card is removed
    [ 1608.292405] mwifiex_pcie 0000:03:00.0: PREP_CMD: card is removed
    # reset performed after firmware went into a bad state
    [ 1609.394320] mwifiex_pcie 0000:03:00.0: WLAN FW already running! Skip FW dnld
    [ 1609.394335] mwifiex_pcie 0000:03:00.0: WLAN FW is active
    # but even the reset failed
    [ 1619.499049] mwifiex_pcie 0000:03:00.0: mwifiex_cmd_timeout_func: Timeout cmd id = 0xfa, act = 0xe000
    [ 1619.499094] mwifiex_pcie 0000:03:00.0: num_data_h2c_failure = 0
    [ 1619.499103] mwifiex_pcie 0000:03:00.0: num_cmd_h2c_failure = 0
    [ 1619.499110] mwifiex_pcie 0000:03:00.0: is_cmd_timedout = 1
    [ 1619.499117] mwifiex_pcie 0000:03:00.0: num_tx_timeout = 0
    [ 1619.499124] mwifiex_pcie 0000:03:00.0: last_cmd_index = 0
    [ 1619.499133] mwifiex_pcie 0000:03:00.0: last_cmd_id: fa 00 07 01 07 01 07 01 07 01
    [ 1619.499140] mwifiex_pcie 0000:03:00.0: last_cmd_act: 00 e0 00 00 00 00 00 00 00 00
    [ 1619.499147] mwifiex_pcie 0000:03:00.0: last_cmd_resp_index = 3
    [ 1619.499155] mwifiex_pcie 0000:03:00.0: last_cmd_resp_id: 07 81 07 81 07 81 07 81 07 81
    [ 1619.499162] mwifiex_pcie 0000:03:00.0: last_event_index = 2
    [ 1619.499169] mwifiex_pcie 0000:03:00.0: last_event: 58 00 58 00 58 00 58 00 58 00
    [ 1619.499177] mwifiex_pcie 0000:03:00.0: data_sent=0 cmd_sent=1
    [ 1619.499185] mwifiex_pcie 0000:03:00.0: ps_mode=0 ps_state=0
    [ 1619.499215] mwifiex_pcie 0000:03:00.0: info: _mwifiex_fw_dpc: unregister device
    # mwifiex_pcie_work hang happening
    [ 1823.233923] INFO: task kworker/3:1:44 blocked for more than 122 seconds.
    [ 1823.233932]       Tainted: G        WC OE     5.10.0-rc1-1-mainline #1
    [ 1823.233935] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
    [ 1823.233940] task:kworker/3:1     state:D stack:    0 pid:   44 ppid:     2 flags:0x00004000
    [ 1823.233960] Workqueue: events mwifiex_pcie_work [mwifiex_pcie]
    [ 1823.233965] Call Trace:
    [ 1823.233981]  __schedule+0x292/0x820
    [ 1823.233990]  schedule+0x45/0xe0
    [ 1823.233995]  schedule_timeout+0x11c/0x160
    [ 1823.234003]  wait_for_completion+0x9e/0x100
    [ 1823.234012]  __flush_work.isra.0+0x156/0x210
    [ 1823.234018]  ? flush_workqueue_prep_pwqs+0x130/0x130
    [ 1823.234026]  __cancel_work_timer+0x11e/0x1a0
    [ 1823.234035]  mwifiex_cleanup_pcie+0x28/0xd0 [mwifiex_pcie]
    [ 1823.234049]  mwifiex_free_adapter+0x24/0xe0 [mwifiex]
    [ 1823.234060]  _mwifiex_fw_dpc+0x294/0x560 [mwifiex]
    [ 1823.234074]  mwifiex_reinit_sw+0x15d/0x300 [mwifiex]
    [ 1823.234080]  mwifiex_pcie_reset_done+0x50/0x80 [mwifiex_pcie]
    [ 1823.234087]  pci_try_reset_function+0x5c/0x90
    [ 1823.234094]  process_one_work+0x1d6/0x3a0
    [ 1823.234100]  worker_thread+0x4d/0x3d0
    [ 1823.234107]  ? rescuer_thread+0x410/0x410
    [ 1823.234112]  kthread+0x142/0x160
    [ 1823.234117]  ? __kthread_bind_mask+0x60/0x60
    [ 1823.234124]  ret_from_fork+0x22/0x30
    [...]

This is a deadlock caused by calling cancel_work_sync() in
mwifiex_cleanup_pcie():

- Device resets are done via mwifiex_pcie_card_reset()
- which schedules card->work to call mwifiex_pcie_card_reset_work()
- which calls pci_try_reset_function().
- This leads to mwifiex_pcie_reset_done() be called on the same workqueue,
  which in turn calls
- mwifiex_reinit_sw() and that calls
- _mwifiex_fw_dpc().

The problem is now that _mwifiex_fw_dpc() calls mwifiex_free_adapter()
in case firmware initialization fails. That ends up calling
mwifiex_cleanup_pcie().

Note that all those calls are still running on the workqueue. So when
mwifiex_cleanup_pcie() now calls cancel_work_sync(), it's really waiting
on itself to complete, causing a deadlock.

This commit fixes the deadlock by skipping cancel_work_sync() on a reset
failure path.

After this commit, when reset fails, the following output is
expected to be shown:

    kernel: mwifiex_pcie 0000:03:00.0: info: _mwifiex_fw_dpc: unregister device
    kernel: mwifiex: Failed to bring up adapter: -5
    kernel: mwifiex_pcie 0000:03:00.0: reinit failed: -5

To reproduce this issue, for example, try putting the root port of wifi
into D3 (replace "00:1d.3" with your setup).

    # put into D3 (root port)
    sudo setpci -v -s 00:1d.3 CAP_PM+4.b=0b

Cc: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201028142346.18355-1-kitakar@gmail.com
3 years agomwifiex: update comment for shutdown_sw()/reinit_sw() to reflect current state
Tsuchiya Yuto [Wed, 28 Oct 2020 14:21:10 +0000 (23:21 +0900)]
mwifiex: update comment for shutdown_sw()/reinit_sw() to reflect current state

The functions mwifiex_shutdown_sw() and mwifiex_reinit_sw() can be used
for more general purposes than the PCIe function level reset. Also, these
are even not PCIe-specific.

So, let's update the comments at the top of each function accordingly.

Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201028142110.18144-3-kitakar@gmail.com
3 years agomwifiex: fix mwifiex_shutdown_sw() causing sw reset failure
Tsuchiya Yuto [Wed, 28 Oct 2020 14:21:09 +0000 (23:21 +0900)]
mwifiex: fix mwifiex_shutdown_sw() causing sw reset failure

When a PCIe function level reset (FLR) is performed but without fw reset for
some reasons (e.g., on Microsoft Surface devices, fw reset requires other
quirks), it fails to reset wifi properly. You can trigger the issue on such
devices via debugfs entry for reset:

    $ echo 1 | sudo tee /sys/kernel/debug/mwifiex/mlan0/reset

and the resulting dmesg log:

    [   45.740508] mwifiex_pcie 0000:03:00.0: Resetting per request
    [   45.742937] mwifiex_pcie 0000:03:00.0: info: successfully disconnected from [BSSID]: reason code 3
    [   45.744666] mwifiex_pcie 0000:03:00.0: info: shutdown mwifiex...
    [   45.751530] mwifiex_pcie 0000:03:00.0: PREP_CMD: card is removed
    [   45.751539] mwifiex_pcie 0000:03:00.0: PREP_CMD: card is removed
    [   45.771691] mwifiex_pcie 0000:03:00.0: PREP_CMD: card is removed
    [   45.771695] mwifiex_pcie 0000:03:00.0: deleting the crypto keys
    [   45.771697] mwifiex_pcie 0000:03:00.0: PREP_CMD: card is removed
    [   45.771698] mwifiex_pcie 0000:03:00.0: deleting the crypto keys
    [   45.771699] mwifiex_pcie 0000:03:00.0: PREP_CMD: card is removed
    [   45.771701] mwifiex_pcie 0000:03:00.0: deleting the crypto keys
    [   45.771702] mwifiex_pcie 0000:03:00.0: PREP_CMD: card is removed
    [   45.771703] mwifiex_pcie 0000:03:00.0: deleting the crypto keys
    [   45.771704] mwifiex_pcie 0000:03:00.0: PREP_CMD: card is removed
    [   45.771705] mwifiex_pcie 0000:03:00.0: deleting the crypto keys
    [   45.771707] mwifiex_pcie 0000:03:00.0: PREP_CMD: card is removed
    [   45.771708] mwifiex_pcie 0000:03:00.0: deleting the crypto keys
    [   53.099343] mwifiex_pcie 0000:03:00.0: info: trying to associate to '[SSID]' bssid [BSSID]
    [   53.241870] mwifiex_pcie 0000:03:00.0: info: associated to bssid [BSSID] successfully
    [   75.377942] mwifiex_pcie 0000:03:00.0: cmd_wait_q terminated: -110
    [   85.385491] mwifiex_pcie 0000:03:00.0: info: successfully disconnected from [BSSID]: reason code 15
    [   87.539408] mwifiex_pcie 0000:03:00.0: cmd_wait_q terminated: -110
    [   87.539412] mwifiex_pcie 0000:03:00.0: deleting the crypto keys
    [   99.699917] mwifiex_pcie 0000:03:00.0: cmd_wait_q terminated: -110
    [   99.699925] mwifiex_pcie 0000:03:00.0: deleting the crypto keys
    [  111.859802] mwifiex_pcie 0000:03:00.0: cmd_wait_q terminated: -110
    [  111.859808] mwifiex_pcie 0000:03:00.0: deleting the crypto keys
    [...]

When comparing mwifiex_shutdown_sw() with mwifiex_pcie_remove(), it
lacks mwifiex_init_shutdown_fw().

This commit fixes mwifiex_shutdown_sw() by adding the missing
mwifiex_init_shutdown_fw().

Fixes: 4c5dae59d2e9 ("mwifiex: add PCIe function level reset support")
Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201028142110.18144-2-kitakar@gmail.com
3 years agobrcmfmac: Fix memory leak for unpaired brcmf_{alloc/free}
Seung-Woo Kim [Wed, 28 Oct 2020 01:52:47 +0000 (10:52 +0900)]
brcmfmac: Fix memory leak for unpaired brcmf_{alloc/free}

There are missig brcmf_free() for brcmf_alloc(). Fix memory leak
by adding missed brcmf_free().

Reported-by: Jaehoon Chung <jh80.chung@samsung.com>
Fixes: a1f5aac1765a ("brcmfmac: don't realloc wiphy during PCIe reset")
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1603849967-22817-1-git-send-email-sw0312.kim@samsung.com
3 years agortlwifi: rtl8821ae: Place braces around empty if() body
Lee Jones [Mon, 2 Nov 2020 11:24:03 +0000 (11:24 +0000)]
rtlwifi: rtl8821ae: Place braces around empty if() body

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c: In function ‘_rtl8812ae_phy_get_txpower_limit’:
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:2453:3: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-35-lee.jones@linaro.org
3 years agortlwifi: rtl8821ae: phy: Remove a couple of unused variables
Lee Jones [Mon, 2 Nov 2020 11:24:02 +0000 (11:24 +0000)]
rtlwifi: rtl8821ae: phy: Remove a couple of unused variables

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c: In function ‘rtl8821ae_phy_switch_wirelessband’:
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:597:14: warning: variable ‘rxpath’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c:597:6: warning: variable ‘txpath’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-34-lee.jones@linaro.org
3 years agortlwifi: rtl8723be: Remove set but unused variable 'cck_highpwr'
Lee Jones [Mon, 2 Nov 2020 11:24:01 +0000 (11:24 +0000)]
rtlwifi: rtl8723be: Remove set but unused variable 'cck_highpwr'

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8723be/trx.c: In function ‘_rtl8723be_query_rxphystatus’:
 drivers/net/wireless/realtek/rtlwifi/rtl8723be/trx.c:53:6: warning: variable ‘cck_highpwr’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-33-lee.jones@linaro.org
3 years agortlwifi: halbtc8821a2ant: Remove a bunch of unused variables
Lee Jones [Mon, 2 Nov 2020 11:23:59 +0000 (11:23 +0000)]
rtlwifi: halbtc8821a2ant: Remove a bunch of unused variables

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c: In function ‘btc8821a2ant_action_bt_inquiry’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:1451:40: warning: variable ‘bt_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:1451:22: warning: variable ‘wifi_rssi_state1’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:1451:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c: In function ‘btc8821a2ant_action_wifi_idle_process’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:1519:40: warning: variable ‘bt_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:1519:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c: In function ‘btc8821a2ant_action_pan_hs’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:2990:22: warning: variable ‘wifi_rssi_state1’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c: In function ‘btc8821a2ant_action_hid_a2dp’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c:3277:22: warning: variable ‘wifi_rssi_state1’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-31-lee.jones@linaro.org
3 years agortlwifi: rtl8188ee: Remove set but unused variable 'reg_ea4'
Lee Jones [Mon, 2 Nov 2020 11:23:58 +0000 (11:23 +0000)]
rtlwifi: rtl8188ee: Remove set but unused variable 'reg_ea4'

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c: In function ‘_rtl88e_phy_path_a_iqk’:
 drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c:1351:33: warning: variable ‘reg_ea4’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-30-lee.jones@linaro.org
3 years agortlwifi: rtl8723be: Remove set but unused variable 'lc_cal'
Lee Jones [Mon, 2 Nov 2020 11:23:57 +0000 (11:23 +0000)]
rtlwifi: rtl8723be: Remove set but unused variable 'lc_cal'

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c: In function ‘_rtl8723be_phy_lc_calibrate’:
 drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c:2181:36: warning: variable ‘lc_cal’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-29-lee.jones@linaro.org
3 years agortlwifi: halbtc8821a1ant: Remove set but unused variable 'wifi_rssi_state'
Lee Jones [Mon, 2 Nov 2020 11:23:56 +0000 (11:23 +0000)]
rtlwifi: halbtc8821a1ant: Remove set but unused variable 'wifi_rssi_state'

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c: In function ‘btc8821a1ant_run_coexist_mechanism’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c:1904:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-28-lee.jones@linaro.org
3 years agortlwifi: phy: Remove set but unused variable 'bbvalue'
Lee Jones [Mon, 2 Nov 2020 11:23:55 +0000 (11:23 +0000)]
rtlwifi: phy: Remove set but unused variable 'bbvalue'

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c: In function ‘_rtl8723e_phy_iq_calibrate’:
 drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c:1150:6: warning: variable ‘bbvalue’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-27-lee.jones@linaro.org
3 years agortlwifi: halbtc8723b2ant: Remove a bunch of set but unused variables
Lee Jones [Mon, 2 Nov 2020 11:23:54 +0000 (11:23 +0000)]
rtlwifi: halbtc8723b2ant: Remove a bunch of set but unused variables

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_wifi_idle_process’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:1631:40: warning: variable ‘bt_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:1631:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_sco’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2767:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_hid’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2810:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_a2dp’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2855:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_a2dp_pan_hs’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2929:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_pan_edr’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2976:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_pan_hs’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3028:22: warning: variable ‘wifi_rssi_state1’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3028:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_pan_edr_a2dp’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3066:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_pan_edr_hid’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3121:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_hid_a2dp_pan_edr’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3185:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c: In function ‘btc8723b2ant_action_hid_a2dp’:
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3244:5: warning: variable ‘wifi_rssi_state’ set but not used [-Wunused-but-set-variable]

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-26-lee.jones@linaro.org
3 years agortlwifi: rtl8192cu: trx: Demote clear abuse of kernel-doc format
Lee Jones [Mon, 2 Nov 2020 11:23:34 +0000 (11:23 +0000)]
rtlwifi: rtl8192cu: trx: Demote clear abuse of kernel-doc format

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c:455: warning: Function parameter or member 'txdesc' not described in '_rtl_tx_desc_checksum'

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-6-lee.jones@linaro.org
3 years agortlwifi: rtl8192cu: mac: Fix some missing/ill-documented function parameters
Lee Jones [Mon, 2 Nov 2020 11:23:32 +0000 (11:23 +0000)]
rtlwifi: rtl8192cu: mac: Fix some missing/ill-documented function parameters

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c:124: warning: Function parameter or member 'hw' not described in 'rtl92c_llt_write'
 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c:124: warning: Excess function parameter 'io' description in 'rtl92c_llt_write'
 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c:155: warning: Function parameter or member 'hw' not described in 'rtl92c_init_llt_table'
 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c:155: warning: Excess function parameter 'io' description in 'rtl92c_init_llt_table'

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-4-lee.jones@linaro.org
3 years agortw88: rtw8822c: Remove unused variable 'corr_val'
Lee Jones [Mon, 2 Nov 2020 11:24:07 +0000 (11:24 +0000)]
rtw88: rtw8822c: Remove unused variable 'corr_val'

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/realtek/rtw88/rtw8822c.c: In function ‘rtw8822c_dpk_dc_corr_check’:
 drivers/net/wireless/realtek/rtw88/rtw8822c.c:2445:5: warning: variable ‘corr_val’ set but not used [-Wunused-but-set-variable]

Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-39-lee.jones@linaro.org
Link: https://lore.kernel.org/r/20201102112410.1049272-39-lee.jones@linaro.org
3 years agowlcore: spi: Demote a non-compliant function header, fix another
Lee Jones [Mon, 2 Nov 2020 11:24:04 +0000 (11:24 +0000)]
wlcore: spi: Demote a non-compliant function header, fix another

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ti/wlcore/spi.c:403: warning: Function parameter or member 'child' not described in 'wl12xx_spi_set_block_size'
 drivers/net/wireless/ti/wlcore/spi.c:403: warning: Function parameter or member 'blksz' not described in 'wl12xx_spi_set_block_size'
 drivers/net/wireless/ti/wlcore/spi.c:440: warning: Excess function parameter 'res' description in 'wlcore_probe_of'

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Luciano Coelho <luciano.coelho@nokia.com>
Cc: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-36-lee.jones@linaro.org
Link: https://lore.kernel.org/r/20201102112410.1049272-37-lee.jones@linaro.org
3 years agomwifiex: pcie: Remove a couple of unchecked 'ret's
Lee Jones [Mon, 2 Nov 2020 11:24:00 +0000 (11:24 +0000)]
mwifiex: pcie: Remove a couple of unchecked 'ret's

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/marvell/mwifiex/pcie.c: In function ‘mwifiex_pcie_remove’:
 drivers/net/wireless/marvell/mwifiex/pcie.c:432:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/marvell/mwifiex/pcie.c: In function ‘mwifiex_cleanup_pcie’:
 drivers/net/wireless/marvell/mwifiex/pcie.c:3142:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]

Cc: Amitkumar Karwar <amitkarwar@gmail.com>
Cc: Ganapathi Bhat <ganapathi.bhat@nxp.com>
Cc: Xinming Hu <huxinming820@gmail.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-32-lee.jones@linaro.org
3 years agowl3501_cs: Fix misspelling and provide missing documentation
Lee Jones [Mon, 2 Nov 2020 11:23:53 +0000 (11:23 +0000)]
wl3501_cs: Fix misspelling and provide missing documentation

Fixes the following W=1 kernel build warning(s):

 In file included from drivers/net/wireless/wl3501_cs.c:57:
 drivers/net/wireless/wl3501_cs.c:143: warning: Function parameter or member 'reg_domain' not described in 'iw_valid_channel'
 drivers/net/wireless/wl3501_cs.c:143: warning: Excess function parameter 'reg_comain' description in 'iw_valid_channel'
 drivers/net/wireless/wl3501_cs.c:469: warning: Function parameter or member 'data' not described in 'wl3501_send_pkt'
 drivers/net/wireless/wl3501_cs.c:469: warning: Function parameter or member 'len' not described in 'wl3501_send_pkt'

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Fox Chen <mhchen@golf.ccl.itri.org.tw>
Cc: de Melo <acme@conectiva.com.br>
Cc: Gustavo Niemeyer <niemeyer@conectiva.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-25-lee.jones@linaro.org
3 years agoprism54: isl_ioctl: Fix one function header and demote another
Lee Jones [Mon, 2 Nov 2020 11:23:43 +0000 (11:23 +0000)]
prism54: isl_ioctl: Fix one function header and demote another

Fixes the following W=1 kernel build warning(s):

 from drivers/net/wireless/intersil/prism54/isl_ioctl.c:22:
 inlined from ‘prism54_get_name’ at drivers/net/wireless/intersil/prism54/isl_ioctl.c:283:2:
 drivers/net/wireless/intersil/prism54/isl_ioctl.c:68: warning: Function parameter or member 'priv' not described in 'prism54_mib_mode_helper'
 drivers/net/wireless/intersil/prism54/isl_ioctl.c:68: warning: Excess function parameter 'mib' description in 'prism54_mib_mode_helper'
 drivers/net/wireless/intersil/prism54/isl_ioctl.c:127: warning: Function parameter or member 'priv' not described in 'prism54_mib_init'

Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Aurelien Alleaume <slts@free.fr>
Cc: Valerio Riedel <hvr@gnu.org>
Cc: "Luis R. Rodriguez" <mcgrof@ruslug.rutgers.edu>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-15-lee.jones@linaro.org
3 years agowl1251: cmd: Rename 'len' to 'buf_len' in the documentation
Lee Jones [Mon, 2 Nov 2020 11:23:38 +0000 (11:23 +0000)]
wl1251: cmd: Rename 'len' to 'buf_len' in the documentation

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/ti/wl1251/cmd.c:70: warning: Function parameter or member 'buf_len' not described in 'wl1251_cmd_test'
 drivers/net/wireless/ti/wl1251/cmd.c:70: warning: Excess function parameter 'len' description in 'wl1251_cmd_test'

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-10-lee.jones@linaro.org
3 years agobrcmfmac: fweh: Add missing description for 'gfp'
Lee Jones [Mon, 2 Nov 2020 11:23:47 +0000 (11:23 +0000)]
brcmfmac: fweh: Add missing description for 'gfp'

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:394: warning: Function parameter or member 'gfp' not described in 'brcmf_fweh_process_event'

Cc: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: Franky Lin <franky.lin@broadcom.com>
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Cc: Wright Feng <wright.feng@cypress.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: brcm80211-dev-list.pdl@broadcom.com
Cc: brcm80211-dev-list@cypress.com
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-19-lee.jones@linaro.org
3 years agobrcmfmac: pcie: Provide description for missing function parameter 'devinfo'
Lee Jones [Mon, 2 Nov 2020 11:23:36 +0000 (11:23 +0000)]
brcmfmac: pcie: Provide description for missing function parameter 'devinfo'

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c:766: warning: Function parameter or member 'devinfo' not described in 'brcmf_pcie_bus_console_read'

Cc: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: Franky Lin <franky.lin@broadcom.com>
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Cc: Wright Feng <wright.feng@cypress.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: linux-wireless@vger.kernel.org
Cc: brcm80211-dev-list.pdl@broadcom.com
Cc: brcm80211-dev-list@cypress.com
Cc: netdev@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-8-lee.jones@linaro.org
3 years agobrcmfmac: bcmsdh: Fix description for function parameter 'pktlist'
Lee Jones [Mon, 2 Nov 2020 11:23:35 +0000 (11:23 +0000)]
brcmfmac: bcmsdh: Fix description for function parameter 'pktlist'

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c:380: warning: Function parameter or member 'pktlist' not described in 'brcmf_sdiod_sglist_rw'
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c:380: warning: Excess function parameter 'pkt' description in 'brcmf_sdiod_sglist_rw'

Cc: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: Franky Lin <franky.lin@broadcom.com>
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Cc: Wright Feng <wright.feng@cypress.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: brcm80211-dev-list.pdl@broadcom.com
Cc: brcm80211-dev-list@cypress.com
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-7-lee.jones@linaro.org
3 years agorsi: rsi_91x_usb_ops: Source file headers are not good candidates for kernel-doc
Lee Jones [Mon, 2 Nov 2020 11:23:33 +0000 (11:23 +0000)]
rsi: rsi_91x_usb_ops: Source file headers are not good candidates for kernel-doc

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/rsi/rsi_91x_usb_ops.c:22: warning: Incorrect use of kernel-doc format:  * rsi_usb_rx_thread() - This is a kernel thread to receive the packets from
 drivers/net/wireless/rsi/rsi_91x_usb_ops.c:29: warning: Function parameter or member 'common' not described in 'rsi_usb_rx_thread'

Cc: Amitkumar Karwar <amitkarwar@gmail.com>
Cc: Siva Rebbagondla <siva8118@gmail.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-5-lee.jones@linaro.org
3 years agorsi: rsi_91x_usb: Fix some basic kernel-doc issues
Lee Jones [Mon, 2 Nov 2020 11:23:31 +0000 (11:23 +0000)]
rsi: rsi_91x_usb: Fix some basic kernel-doc issues

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/rsi/rsi_91x_usb.c:26: warning: cannot understand function prototype: 'u16 dev_oper_mode = DEV_OPMODE_STA_BT_DUAL; '
 drivers/net/wireless/rsi/rsi_91x_usb.c:88: warning: Function parameter or member 'endpoint' not described in 'rsi_write_multiple'
 drivers/net/wireless/rsi/rsi_91x_usb.c:88: warning: Excess function parameter 'addr' description in 'rsi_write_multiple'
 drivers/net/wireless/rsi/rsi_91x_usb.c:320: warning: Function parameter or member 'ep_num' not described in 'rsi_rx_urb_submit'
 drivers/net/wireless/rsi/rsi_91x_usb.c:320: warning: Function parameter or member 'mem_flags' not described in 'rsi_rx_urb_submit'

Cc: Amitkumar Karwar <amitkarwar@gmail.com>
Cc: Siva Rebbagondla <siva8118@gmail.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201102112410.1049272-3-lee.jones@linaro.org
3 years agort2x00: save survey for every channel visited
Markov Mikhail [Wed, 4 Nov 2020 14:25:24 +0000 (15:25 +0100)]
rt2x00: save survey for every channel visited

rt2800 only gives you survey for current channel.

Survey-based ACS algorithms are failing to perform their job when working
with rt2800.

Make rt2800 save survey for every channel visited and be able to give away
that information.

There is a bug registered https://dev.archive.openwrt.org/ticket/19081 and
this patch solves the issue.

Signed-off-by: Markov Mikhail <markov.mikhail@itmh.ru>
sgruszka: remove unused variable
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201104142524.94375-1-stf_xl@wp.pl
3 years agortlwifi: Remove in_interrupt() usage in halbtc_send_bt_mp_operation()
Sebastian Andrzej Siewior [Sun, 1 Nov 2020 21:15:36 +0000 (22:15 +0100)]
rtlwifi: Remove in_interrupt() usage in halbtc_send_bt_mp_operation()

halbtc_send_bt_mp_operation() uses in_interrupt() to determine if it is
safe to invoke wait_for_completion().

The usage of in_interrupt() in drivers is phased out and Linus clearly
requested that code which changes behaviour depending on context should
either be separated or the context be conveyed in an argument passed by the
caller, which usually knows the context.

Aside of that in_interrupt() is not correct as it does not catch preempt
disabled regions which neither can sleep.

halbtc_send_bt_mp_operation() is called from:

 rtl_watchdog_wq_callback()
   rtl_btc_periodical()
     halbtc_get()
       case BTC_GET_U4_BT_PATCH_VER:
         halbtc_get_bt_patch_version()

 which is preemtible context.

   rtl_c2h_content_parsing()
     btc_ops->btc_btinfo_notify()
       rtl_btc_btinfo_notify()
         exhalbtc_bt_info_notify()
           ex_btc8723b1ant_bt_info_notify()
   ex_btc8821a1ant_bt_info_notify()
   ex_btc8821a2ant_bt_info_notify()
             btcoexist->btc_set_bt_reg()
               halbtc_set_bt_reg()

   rtl_c2h_content_parsing() is in turn called from:

   rtl_c2hcmd_wq_callback()
     rtl_c2hcmd_launcher()

   which is preemptible context and from:

   _rtl_pci_rx_interrupt
     rtl_c2hcmd_enqueue()

   which is obviously not preemptible but limited to C2H_BT_MP commands
   which does invoke rtl_c2h_content_parsing().

Aside of that it can be reached from:

     halbtc_get()
       case BTC_GET_U4_SUPPORTED_FEATURE:
         halbtc_get_bt_coex_supported_feature()
       case BTC_GET_U4_BT_FORBIDDEN_SLOT_VAL:
         halbtc_get_bt_forbidden_slot_val()
       case BTC_GET_U4_BT_DEVICE_INFO:
         halbtc_get_bt_device_info()
       case BTC_GET_U4_SUPPORTED_VERSION:
         halbtc_get_bt_coex_supported_version()
       case BTC_GET_U4_SUPPORTED_FEATURE:
         halbtc_get_bt_coex_supported_feature()

   btcoexist->btc_get_bt_afh_map_from_bt()
     halbtc_get_bt_afh_map_from_bt()

   btcoexist->btc_get_ble_scan_para_from_bt()
     halbtc_get_ble_scan_para_from_bt()

   btcoexist->btc_get_ble_scan_type_from_bt()
     halbtc_get_ble_scan_type_from_bt()

   btcoexist->btc_get_ant_det_val_from_bt()
     halbtc_get_ant_det_val_from_bt()

   btcoexist->btc_get_bt_coex_supported_version()
     halbtc_get_bt_coex_supported_version()

   btcoexist->btc_get_bt_coex_supported_feature()
     halbtc_get_bt_coex_supported_feature()

None of these have a caller. Welcome to the wonderful world of HALs and
onion layers.

Remove in_interrupt() check.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201101211536.2966644-9-bigeasy@linutronix.de
3 years agortlwifi: Remove in_interrupt() usage in is_any_client_connect_to_ap().
Sebastian Andrzej Siewior [Sun, 1 Nov 2020 21:15:35 +0000 (22:15 +0100)]
rtlwifi: Remove in_interrupt() usage in is_any_client_connect_to_ap().

is_any_client_connect_to_ap() is using in_interrupt() to determine whether
it should acquire the lock prior accessing the list.

The usage of in_interrupt() in drivers is phased out and Linus clearly
requested that code which changes behaviour depending on context should
either be separated or the context be conveyed in an argument passed by the
caller, which usually knows the context.

The function is called from:

    - halbtc_get()

    - halbtc_get()
        halbtc_get_wifi_link_status()

    - halbtc_display_dbg_msg()
halbtc_display_wifi_status()
          halbtc_get_wifi_link_status()

All top level callers are part of the btc_coexist callback inferface and
are never invoked from a context which can hold the lock already.

The contexts which hold the lock are either protecting list add/del
operations or list walks which never call into any of the btc_coexist
interfaces.

In fact the conditional is outright dangerous because if this function
would be invoked from a BH disabled context the check would avoid taking
the lock while on another CPU the list could be manipulated under the lock.

Remove the in_interrupt() check and always acquire the lock.

To simplify the code further use list_empty() instead of walking the list
and counting the entries just to check the count for > 0 at the end.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201101211536.2966644-8-bigeasy@linutronix.de
3 years agozd1211rw: Remove in_atomic() usage.
Sebastian Andrzej Siewior [Sun, 1 Nov 2020 21:15:34 +0000 (22:15 +0100)]
zd1211rw: Remove in_atomic() usage.

The usage of in_atomic() in driver code is deprecated as it can not
always detect all states where it is not allowed to sleep.

All callers are in premptible thread context and all functions invoke core
functions which have checks for invalid calling contexts already.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Ulrich Kunitz <kune@deine-taler.de>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201101211536.2966644-7-bigeasy@linutronix.de
3 years agohostap: Remove in_atomic() check.
Sebastian Andrzej Siewior [Sun, 1 Nov 2020 21:15:33 +0000 (22:15 +0100)]
hostap: Remove in_atomic() check.

hostap_get_wireless_stats() is the iw_handler_if::get_wireless_stats()
callback of this driver. This callback was not allowed to sleep until
commit a160ee69c6a46 ("wext: let get_wireless_stats() sleep") in v2.6.32.

Remove the therefore pointless in_atomic() check.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Jouni Malinen <j@w1.fi>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201101211536.2966644-6-bigeasy@linutronix.de
3 years agoairo: Replace in_atomic() usage.
Sebastian Andrzej Siewior [Sun, 1 Nov 2020 21:15:32 +0000 (22:15 +0100)]
airo: Replace in_atomic() usage.

issuecommand() is using in_atomic() to decide if it is safe to invoke
schedule() while waiting for the command to be accepted.

Usage of in_atomic() for this is only half correct as it can not detect all
condition where it is not allowed to schedule(). Also Linus clearly
requested that code which changes behaviour depending on context should
either be seperated or the context be conveyed in an argument passed by the
caller, which usually knows the context.

Add an may_sleep argument to issuecommand() indicating when it is save to
sleep and change schedule() to cond_resched() because it's pointless to
invoke schedule() if there is no request to reschedule.

Pass the may_sleep condition through the various call chains leading to
issuecommand().

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201101211536.2966644-5-bigeasy@linutronix.de
3 years agoairo: Always use JOB_STATS and JOB_EVENT
Sebastian Andrzej Siewior [Sun, 1 Nov 2020 21:15:31 +0000 (22:15 +0100)]
airo: Always use JOB_STATS and JOB_EVENT

issuecommand() is using in_atomic() to decide if it is safe to invoke
schedule() while waiting for the command to be accepted.

Usage of in_atomic() for this is only half correct as it can not detect all
condition where it is not allowed to schedule(). Also Linus clearly
requested that code which changes behaviour depending on context should
either be seperated or the context be conveyed in an argument passed by the
caller, which usually knows the context.

Chasing the call chains leading up to issuecommand() is straight forward,
but airo_link() and airo_get_stats() would require to pass the context
through a quite large amount of functions.

As this is ancient hardware, avoid the churn and enforce the invocation of
those functions through the JOB machinery.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201101211536.2966644-4-bigeasy@linutronix.de
3 years agoairo: Invoke airo_read_wireless_stats() directly
Sebastian Andrzej Siewior [Sun, 1 Nov 2020 21:15:30 +0000 (22:15 +0100)]
airo: Invoke airo_read_wireless_stats() directly

airo_get_wireless_stats() is the iw_handler_if::get_wireless_stats()
callback of this driver. This callback was not allowed to sleep until
commit a160ee69c6a46 ("wext: let get_wireless_stats() sleep") in v2.6.32.

airo still delegates the readout to a thread, which is not longer
necessary.

Invoke airo_read_wireless_stats() directly from the callback and remove
the now unused JOB_WSTATS handling.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201101211536.2966644-3-bigeasy@linutronix.de
3 years agoorinoco: Remove BUG_ON(in_interrupt/irq())
Sebastian Andrzej Siewior [Sun, 1 Nov 2020 21:15:29 +0000 (22:15 +0100)]
orinoco: Remove BUG_ON(in_interrupt/irq())

The usage of in_irq()/in_interrupt() in drivers is phased out and the
BUG_ON()'s based on those are not covering all contexts in which these
functions cannot be called.

Aside of that BUG_ON() should only be used as last resort, which is clearly
not the case here.

A broad variety of checks in the invoked functions (always enabled or debug
option dependent) cover these conditions already, so the BUG_ON()'s do not
really provide additional value.

Just remove them.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201101211536.2966644-2-bigeasy@linutronix.de
3 years agortl8xxxu: Add Buffalo WI-U3-866D to list of supported devices
Tokunori Ikegami [Sun, 1 Nov 2020 17:32:36 +0000 (02:32 +0900)]
rtl8xxxu: Add Buffalo WI-U3-866D to list of supported devices

Buffalo WI-U3-866D is supported by the rtl8812au driver.
Also RTL8812AU software supports the product RTL8192EU also.
So add Buffalo WI-U3-866D with the RTL8192EU driver info.

Signed-off-by: Tokunori Ikegami <ikegami.t@gmail.com>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201101173236.7851-1-ikegami.t@gmail.com
3 years agortw88: decide lps deep mode from firmware feature.
Chin-Yen Lee [Fri, 30 Oct 2020 08:48:26 +0000 (16:48 +0800)]
rtw88: decide lps deep mode from firmware feature.

This patch checks the supported lps deep mode from firmware feature,
and allows different firmware have different deep power mode.
Original module parameter rtw_fw_lps_deep_mode is replaced with
rtw_disable_lps_deep_mode for user to disable lps deep mode.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Tzu-En Huang <tehuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201030084826.9034-5-tehuang@realtek.com
3 years agortw88: add C2H response for checking firmware leave lps
Chin-Yen Lee [Fri, 30 Oct 2020 08:48:25 +0000 (16:48 +0800)]
rtw88: add C2H response for checking firmware leave lps

Originally driver checks if firmware has left lps via reading the setting
of REG_TCR register. But this way may fail when firmware is frequently
changing power state. Therefore, firmware provides a safer option for
driver. When firmware leaves lps successfully, it sends a C2H response
to inform driver.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Tzu-En Huang <tehuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201030084826.9034-4-tehuang@realtek.com