platform/kernel/linux-starfive.git
2 years agortw89: Skip useless dig gain and igi related settings for 8852C
Johnson Lin [Fri, 8 Apr 2022 00:13:48 +0000 (08:13 +0800)]
rtw89: Skip useless dig gain and igi related settings for 8852C

Separated DIG RX gain, IGI configurations from not supportted HW using
"support_igi" capability flag.

Signed-off-by: Johnson Lin <johnson.lin@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-9-pkshih@realtek.com
2 years agortw89: 8852c: disable firmware watchdog if CPU disabled
Chia-Yuan Li [Fri, 8 Apr 2022 00:13:47 +0000 (08:13 +0800)]
rtw89: 8852c: disable firmware watchdog if CPU disabled

Disable watchdog timer to prevent it timeout suddenly.

Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-8-pkshih@realtek.com
2 years agortw89: reset BA CAM
Ping-Ke Shih [Fri, 8 Apr 2022 00:13:46 +0000 (08:13 +0800)]
rtw89: reset BA CAM

BA CAM is used to react receiving AMPDU packets, so reset them to be
expected initial state.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-7-pkshih@realtek.com
2 years agortw89: change station scheduler setting for hardware TX mode
Ping-Ke Shih [Fri, 8 Apr 2022 00:13:45 +0000 (08:13 +0800)]
rtw89: change station scheduler setting for hardware TX mode

The bit B_AX_SS_NONEMPTY_SS2FINFO_EN should be clear, because we configure
C-MAC as hardware TX/RX mode.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-6-pkshih@realtek.com
2 years agortw89: ser: configure top ERR IMR for firmware to recover
Ping-Ke Shih [Fri, 8 Apr 2022 00:13:44 +0000 (08:13 +0800)]
rtw89: ser: configure top ERR IMR for firmware to recover

Turn on ERR IMR, and then firmware can capture interrupts reflecting
errors to recover hardware states.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-5-pkshih@realtek.com
2 years agortw89: ser: configure C-MAC interrupt mask
Chia-Yuan Li [Fri, 8 Apr 2022 00:13:43 +0000 (08:13 +0800)]
rtw89: ser: configure C-MAC interrupt mask

Similarly, create functions to set specific C-MAC masks for firmware
recovery.

Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-4-pkshih@realtek.com
2 years agortw89: ser: configure D-MAC interrupt mask
Chia-Yuan Li [Fri, 8 Apr 2022 00:13:42 +0000 (08:13 +0800)]
rtw89: ser: configure D-MAC interrupt mask

These interrupts are used by firmware to recover hardware. Create
functions to set specific D-MAC masks to replace plain register settings.

Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-3-pkshih@realtek.com
2 years agortw89: ser: fix unannotated fall-through
Zong-Zhe Yang [Fri, 8 Apr 2022 00:13:41 +0000 (08:13 +0800)]
rtw89: ser: fix unannotated fall-through

add `break` to fix warning of unannotated fall-through between switch
labels.

Fixes: 14f9f4790048 ("rtw89: ser: control hci interrupts on/off by state")
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220408001353.17188-2-pkshih@realtek.com
2 years agomac80211: prepare sta handling for MLO support
Sriram R [Mon, 4 Apr 2022 15:41:23 +0000 (21:11 +0530)]
mac80211: prepare sta handling for MLO support

Currently in mac80211 each STA object is represented
using sta_info datastructure with the associated
STA specific information and drivers access ieee80211_sta
part of it.

With MLO (Multi Link Operation) support being added
in 802.11be standard, though the association is logically
with a single Multi Link capable STA, at the physical level
communication can happen via different advertised
links (uniquely identified by Channel, operating class,
BSSID) and hence the need to handle multiple link
STA parameters within a composite sta_info object
called the MLD STA. The different link STA part of
MLD STA are identified using the link address which can
be same or different as the MLD STA address and unique
link id based on the link vif.

To support extension of such a model, the sta_info
datastructure is modified to hold multiple link STA
objects with link specific params currently within
sta_info moved to this new structure. Similarly this is
done for ieee80211_sta as well which will be accessed
within mac80211 as well as by drivers, hence trivial
driver changes are expected to support this.

For current non MLO supported drivers, only one link STA
is present and link information is accessed via 'deflink'
member.

For MLO drivers, we still need to define the APIs etc. to
get the correct link ID and access the correct part of
the station info.

Currently in mac80211, all link STA info are accessed directly
via deflink. These will be updated to access via link pointers
indexed by link id with MLO support patches, with link id
being 0 for non MLO supported cases.

Except for couple of macro related changes, below spatch takes
care of updating mac80211 and driver code to access to the
link STA info via deflink.

  @ieee80211_sta@
  struct ieee80211_sta *s;
  struct sta_info *si;
  identifier var = {supp_rates, ht_cap, vht_cap, he_cap, he_6ghz_capa, eht_cap, rx_nss, bandwidth, txpwr};
  @@

  (
    s->
  -    var
  +    deflink.var
  |
   si->sta.
  -    var
  +    deflink.var
  )

  @sta_info@
  struct sta_info *si;
  identifier var = {gtk, pcpu_rx_stats, rx_stats, rx_stats_avg, status_stats, tx_stats, cur_max_bandwidth};
  @@

  (
    si->
  -    var
  +    deflink.var
  )

Signed-off-by: Sriram R <quic_srirrama@quicinc.com>
Link: https://lore.kernel.org/r/1649086883-13246-1-git-send-email-quic_srirrama@quicinc.com
[remove MLO-drivers notes from commit message, not clear yet; run spatch]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2 years agomac80211: minstrel_ht: fix where rate stats are stored (fixes debugfs output)
Peter Seiderer [Mon, 4 Apr 2022 16:54:14 +0000 (18:54 +0200)]
mac80211: minstrel_ht: fix where rate stats are stored (fixes debugfs output)

Using an ath9k card the debugfs output of minstrel_ht looks like the following
(note the zero values for the first four rates sum-of success/attempts):

             best    ____________rate__________    ____statistics___    _____last____    ______sum-of________
mode guard #  rate   [name   idx airtime  max_tp]  [avg(tp) avg(prob)]  [retry|suc|att]  [#success | #attempts]
OFDM       1    DP     6.0M  272    1640     5.2       3.1      53.8       3     0 0             0   0
OFDM       1   C       9.0M  273    1104     7.7       4.6      53.8       4     0 0             0   0
OFDM       1  B       12.0M  274     836    10.0       6.0      53.8       4     0 0             0   0
OFDM       1 A    S   18.0M  275     568    14.3       8.5      53.8       5     0 0             0   0
OFDM       1      S   24.0M  276     436    18.1       0.0       0.0       5     0 1            80   1778
OFDM       1          36.0M  277     300    24.9       0.0       0.0       0     0 1             0   107
OFDM       1      S   48.0M  278     236    30.4       0.0       0.0       0     0 0             0   75
OFDM       1          54.0M  279     212    33.0       0.0       0.0       0     0 0             0   72

Total packet count::    ideal 16582      lookaround 885
Average # of aggregated frames per A-MPDU: 1.0

Debugging showed that the rate statistics for the first four rates where
stored in the MINSTREL_CCK_GROUP instead of the MINSTREL_OFDM_GROUP because
in minstrel_ht_get_stats() the supported check was not honoured as done in
various other places, e.g net/mac80211/rc80211_minstrel_ht_debugfs.c:

 74                 if (!(mi->supported[i] & BIT(j)))
 75                         continue;

With the patch applied the output looks good:

              best    ____________rate__________    ____statistics___    _____last____    ______sum-of________
mode guard #  rate   [name   idx airtime  max_tp]  [avg(tp) avg(prob)]  [retry|suc|att]  [#success | #attempts]
OFDM       1    D      6.0M  272    1640     5.2       5.2     100.0       3     0 0             1   1
OFDM       1   C       9.0M  273    1104     7.7       7.7     100.0       4     0 0            38   38
OFDM       1  B       12.0M  274     836    10.0       9.9      89.5       4     2 2           372   395
OFDM       1 A   P    18.0M  275     568    14.3      14.3      97.2       5    52 53         6956   7181
OFDM       1      S   24.0M  276     436    18.1       0.0       0.0       0     0 1             6   163
OFDM       1          36.0M  277     300    24.9       0.0       0.0       0     0 1             0   35
OFDM       1      S   48.0M  278     236    30.4       0.0       0.0       0     0 0             0   38
OFDM       1      S   54.0M  279     212    33.0       0.0       0.0       0     0 0             0   38

Total packet count::    ideal 7097      lookaround 287
Average # of aggregated frames per A-MPDU: 1.0

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Link: https://lore.kernel.org/r/20220404165414.1036-1-ps.report@gmx.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2 years agonl80211: show SSID for P2P_GO interfaces
Johannes Berg [Fri, 18 Mar 2022 12:46:57 +0000 (13:46 +0100)]
nl80211: show SSID for P2P_GO interfaces

There's no real reason not to send the SSID to userspace
when it requests information about P2P_GO, it is, in that
respect, exactly the same as AP interfaces. Fix that.

Fixes: 44905265bc15 ("nl80211: don't expose wdev->ssid for most interfaces")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20220318134656.14354ae223f0.Ia25e85a512281b92e1645d4160766a4b1a471597@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2 years agomac80211: introduce BSS color collision detection
Lorenzo Bianconi [Fri, 25 Mar 2022 10:42:41 +0000 (11:42 +0100)]
mac80211: introduce BSS color collision detection

Add ieee80211_rx_check_bss_color_collision routine in order to introduce
BSS color collision detection in mac80211 if it is not supported in HW/FW
(e.g. for mt7915 chipset).
Add IEEE80211_HW_DETECTS_COLOR_COLLISION flag to let the driver notify
BSS color collision detection is supported in HW/FW. Set this for ath11k
which apparently didn't need this code.

Tested-by: Peter Chiu <Chui-Hao.Chiu@mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/a05eeeb1841a84560dc5aaec77894fcb69a54f27.1648204871.git.lorenzo@kernel.org
[clarify commit message a bit, move flag to mac80211]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2 years agomac80211: Improve confusing comment around tx_info clearing
Toke Høiland-Jørgensen [Mon, 4 Apr 2022 21:01:08 +0000 (23:01 +0200)]
mac80211: Improve confusing comment around tx_info clearing

The comment above the ieee80211_tx_info_clear_status() helper was somewhat
confusing as to which fields it was or wasn't clearing. So replace it by
something that is hopefully more, well, clear.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Link: https://lore.kernel.org/r/20220404210108.2684907-1-toke@toke.dk
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2 years agomac80211: protect ieee80211_assign_beacon with next_beacon check
Lorenzo Bianconi [Thu, 7 Apr 2022 10:36:58 +0000 (12:36 +0200)]
mac80211: protect ieee80211_assign_beacon with next_beacon check

Even if it is not a real issue since ieee80211_set_after_csa_beacon()
or ieee80211_set_after_color_change_beacon() are run only when csa or bcc
is active, move next_beacon check before running ieee80211_assign_beacon
routine.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/041764ed7e9781bcee66c33b41f1365aa4205932.1649327683.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2 years agoipw2x00: use DEVICE_ATTR_*() macro
Meng Tang [Wed, 6 Apr 2022 01:54:44 +0000 (09:54 +0800)]
ipw2x00: use DEVICE_ATTR_*() macro

Use DEVICE_ATTR_*() helper instead of plain DEVICE_ATTR,
which makes the code a bit shorter and easier to read.

Signed-off-by: Meng Tang <tangmeng@uniontech.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220406015444.14408-1-tangmeng@uniontech.com
2 years agoorinoco: Prepare cleanup of powerpc's asm/prom.h
Christophe Leroy [Sat, 2 Apr 2022 10:10:37 +0000 (12:10 +0200)]
orinoco: Prepare cleanup of powerpc's asm/prom.h

powerpc's asm/prom.h brings some headers that it doesn't
need itself.

In order to clean it up, first add missing headers in
users of asm/prom.h

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/4e3bfd4ffe2ed6b713ddd99b69dcc3d96adffe34.1648833427.git.christophe.leroy@csgroup.eu
2 years agoipw2x00: Fix potential NULL dereference in libipw_xmit()
Haowen Bai [Fri, 1 Apr 2022 07:10:54 +0000 (15:10 +0800)]
ipw2x00: Fix potential NULL dereference in libipw_xmit()

crypt and crypt->ops could be null, so we need to checking null
before dereference

Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/1648797055-25730-1-git-send-email-baihaowen@meizu.com
2 years agob43: Fix assigning negative value to unsigned variable
Haowen Bai [Fri, 25 Mar 2022 10:15:15 +0000 (18:15 +0800)]
b43: Fix assigning negative value to unsigned variable

fix warning reported by smatch:
drivers/net/wireless/broadcom/b43/phy_n.c:585 b43_nphy_adjust_lna_gain_table()
warn: assigning (-2) to unsigned variable '*(lna_gain[0])'

Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/1648203315-28093-1-git-send-email-baihaowen@meizu.com
2 years agob43legacy: Fix assigning negative value to unsigned variable
Haowen Bai [Fri, 25 Mar 2022 10:17:13 +0000 (18:17 +0800)]
b43legacy: Fix assigning negative value to unsigned variable

fix warning reported by smatch:
drivers/net/wireless/broadcom/b43legacy/phy.c:1181 b43legacy_phy_lo_b_measure()
warn: assigning (-772) to unsigned variable 'fval'

Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/1648203433-8736-1-git-send-email-baihaowen@meizu.com
2 years agortl8xxxu: fill up txrate info for gen1 chips
Chris Chiu [Fri, 25 Mar 2022 03:57:35 +0000 (11:57 +0800)]
rtl8xxxu: fill up txrate info for gen1 chips

RTL8188CUS/RTL8192CU(gen1) don't support rate adaptive report hence
no real txrate info can be retrieved. The vendor driver reports the
highest rate in HT capabilities from the IEs to avoid empty txrate.
This commit initiates the txrate information with the highest supported
rate negotiated with AP. The gen2 chip keeps update the txrate from
the rate adaptive reports, and gen1 chips at least have non-NULL txrate
after associated.

Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325035735.4745-3-chris.chiu@canonical.com
2 years agortl8xxxu: feed antenna information for cfg80211
Chris Chiu [Fri, 25 Mar 2022 03:57:34 +0000 (11:57 +0800)]
rtl8xxxu: feed antenna information for cfg80211

Fill up the available TX/RX antenna so the iw commands can show
correct antenna information for different chips.

Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325035735.4745-2-chris.chiu@canonical.com
2 years agortlwifi: replace usage of found with dedicated list iterator variable
Jakob Koschel [Thu, 24 Mar 2022 07:21:24 +0000 (08:21 +0100)]
rtlwifi: replace usage of found with dedicated list iterator variable

To move the list iterator variable into the list_for_each_entry_*()
macro in the future it should be avoided to use the list iterator
variable after the loop body.

To *never* use the list iterator variable after the loop it was
concluded to use a separate iterator variable instead of a
found boolean [1].

This removes the need to use a found variable and simply checking if
the variable was set, can determine if the break/goto was hit.

Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@mail.gmail.com/
Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220324072124.62458-1-jakobkoschel@gmail.com
2 years agobrcmfmac: Avoid keeping power to SDIO card unless WOWL is used
Ulf Hansson [Wed, 23 Mar 2022 08:39:50 +0000 (09:39 +0100)]
brcmfmac: Avoid keeping power to SDIO card unless WOWL is used

Keeping the power to the SDIO card during system wide suspend, consumes
energy. Especially on battery driven embedded systems, this can be a
problem. Therefore, let's change the behaviour into allowing the SDIO card
to be powered off, unless WOWL is supported and enabled.

Note that, the downside from this change, is that during system resume the
SDIO card needs to be re-initialized and the FW must be re-programmed. Even
if this may take some time to complete, it should we worth it, rather than
draining the battery.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Christophe Roullier <christophe.roullier@foss.st.com>
Reviewed-by: Yann Gautier <yann.gautier@foss.st.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220323083950.414783-1-ulf.hansson@linaro.org
2 years agomwifiex: add mutex lock for call in mwifiex_dfs_chan_sw_work_queue
Niels Dossche [Mon, 21 Mar 2022 22:55:16 +0000 (23:55 +0100)]
mwifiex: add mutex lock for call in mwifiex_dfs_chan_sw_work_queue

cfg80211_ch_switch_notify uses ASSERT_WDEV_LOCK to assert that
net_device->ieee80211_ptr->mtx (which is the same as priv->wdev.mtx)
is held during the function's execution.
mwifiex_dfs_chan_sw_work_queue is one of its callers, which does not
hold that lock, therefore violating the assertion.
Add a lock around the call.

Disclaimer:
I am currently working on a static analyser to detect missing locks.
This was a reported case. I manually verified the report by looking
at the code, so that I do not send wrong information or patches.
After concluding that this seems to be a true positive, I created
this patch.
However, as I do not in fact have this particular hardware,
I was unable to test it.

Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Niels Dossche <dossche.niels@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220321225515.32113-1-dossche.niels@gmail.com
2 years agortw89: fix misconfiguration on hw_scan channel time
Po Hao Huang [Fri, 1 Apr 2022 05:50:43 +0000 (13:50 +0800)]
rtw89: fix misconfiguration on hw_scan channel time

Without this patch, hw scan won't stay long enough on DFS/passive
channels. Found previous logic error and fix it.

Signed-off-by: Po Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220401055043.12512-5-pkshih@realtek.com
2 years agortw89: coex: Add case for scan offload
Ching-Te Ku [Fri, 1 Apr 2022 05:50:42 +0000 (13:50 +0800)]
rtw89: coex: Add case for scan offload

Turn off coexistence driver control, let firmware can control the
traffic during scan. This prevents potential unexpected behavior of
the BT driver.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220401055043.12512-4-pkshih@realtek.com
2 years agortw89: packet offload handler to avoid warning
Po Hao Huang [Fri, 1 Apr 2022 05:50:41 +0000 (13:50 +0800)]
rtw89: packet offload handler to avoid warning

Add a dummy function for packet offload to eliminate warning message
"c2h class 1 func 2 not support". This c2h is for debug purpose and
its presence itself can do the work, so further parsing won't be
required for now.

Signed-off-by: Po Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220401055043.12512-3-pkshih@realtek.com
2 years agortw89: change idle mode condition during hw_scan
Po Hao Huang [Fri, 1 Apr 2022 05:50:40 +0000 (13:50 +0800)]
rtw89: change idle mode condition during hw_scan

Previously we only consider single interface's status, idle mode
behavior could be unexpected when multiple interfaces is active.
Change to enter/leave idle mode by mac80211's configuration state.

Signed-off-by: Po Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220401055043.12512-2-pkshih@realtek.com
2 years agortw89: update ptcl_init
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:55 +0000 (14:00 +0800)]
rtw89: update ptcl_init

ptcl_init, standing for protocol initialization, is updated to the latest
version.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-17-pkshih@realtek.com
2 years agortw89: update TMAC parameters
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:54 +0000 (14:00 +0800)]
rtw89: update TMAC parameters

TMAC is short for TX MAC, and this patch is to configure FIFO thresholds.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-16-pkshih@realtek.com
2 years agortw89: initialize NAV control
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:53 +0000 (14:00 +0800)]
rtw89: initialize NAV control

Configure NAV function and its parameters.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-15-pkshih@realtek.com
2 years agortw89: update scheduler setting
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:52 +0000 (14:00 +0800)]
rtw89: update scheduler setting

Update IC specific settings accordingly.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-14-pkshih@realtek.com
2 years agortw89: 8852c: update security engine setting
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:51 +0000 (14:00 +0800)]
rtw89: 8852c: update security engine setting

The security setting of 8852A and 8852C are different, so change the
settings accordingly.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-13-pkshih@realtek.com
2 years agortw89: Turn on CR protection of CMAC
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:50 +0000 (14:00 +0800)]
rtw89: Turn on CR protection of CMAC

CMAC is Control MAC, and this patch is to turn on CR (control registers)
protection.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-12-pkshih@realtek.com
2 years agortw89: add chip_ops::{enable,disable}_bb_rf to support v1 chip
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:49 +0000 (14:00 +0800)]
rtw89: add chip_ops::{enable,disable}_bb_rf to support v1 chip

The v1 chip use specific functions to enable and disable BB/RF.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-11-pkshih@realtek.com
2 years agortw89: update STA scheduler parameters for v1 chip
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:48 +0000 (14:00 +0800)]
rtw89: update STA scheduler parameters for v1 chip

The v1 chip has additional setting of STA scheduler, so add it.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-10-pkshih@realtek.com
2 years agortw89: extend dmac_pre_init to support 8852C
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:47 +0000 (14:00 +0800)]
rtw89: extend dmac_pre_init to support 8852C

DMAC is short for data MAC. 8852C has more settings than 8852A, so add
them.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-9-pkshih@realtek.com
2 years agortw89: pci: add L1 settings
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:46 +0000 (14:00 +0800)]
rtw89: pci: add L1 settings

Configure L1 settings of enter and exit.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-8-pkshih@realtek.com
2 years agortw89: pci: add deglitch setting
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:45 +0000 (14:00 +0800)]
rtw89: pci: add deglitch setting

Add setting to support 8852ce.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-7-pkshih@realtek.com
2 years agortw89: pci: set address info registers depends on chips
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:44 +0000 (14:00 +0800)]
rtw89: pci: set address info registers depends on chips

Address info registers are used to configure size of DMA address info to
point skb->data. With different size, it can support different number of
scatters.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-6-pkshih@realtek.com
2 years agortw89: pci: add LTR setting for v1 chip
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:43 +0000 (14:00 +0800)]
rtw89: pci: add LTR setting for v1 chip

Add LTR handle to PCI deinit as well.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-5-pkshih@realtek.com
2 years agortw89: pci: refine pci pre_init function
Chia-Yuan Li [Fri, 25 Mar 2022 06:00:42 +0000 (14:00 +0800)]
rtw89: pci: refine pci pre_init function

The pre_init is used to initialize partial PCI function during PCI probe.
It doesn't need to initialize all functions, so probe can be faster.

Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-4-pkshih@realtek.com
2 years agortw89: pci: add pci attributes to configure operating mode
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:41 +0000 (14:00 +0800)]
rtw89: pci: add pci attributes to configure operating mode

Refine operating mode function to support variant chips.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-3-pkshih@realtek.com
2 years agortw89: pci: add register definition to rtw89_pci_info to generalize pci code
Ping-Ke Shih [Fri, 25 Mar 2022 06:00:40 +0000 (14:00 +0800)]
rtw89: pci: add register definition to rtw89_pci_info to generalize pci code

The PCI code of 8852AE and 8852CE are different, but the flow and register
names are similar. To reuse the code, add a struct to define register or
value accordingly. We also use chip id to control the slightly different
flow.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220325060055.58482-2-pkshih@realtek.com
2 years agoMerge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
Kalle Valo [Wed, 6 Apr 2022 08:37:55 +0000 (11:37 +0300)]
Merge ath-next from git://git./linux/kernel/git/kvalo/ath.git

ath.git patches for v5.19. Major changes:

ath11k

* Wake-on-WLAN support for QCA6390 and WCN6855

* device recovery (firmware restart) support for QCA6390 and WCN6855

wcn36xx

* support for transmit rate reporting to user space

2 years agoath11k: mhi: remove unnecessary goto from ath11k_mhi_start()
Kalle Valo [Tue, 5 Apr 2022 08:26:44 +0000 (11:26 +0300)]
ath11k: mhi: remove unnecessary goto from ath11k_mhi_start()

No need to have goto for a return statement, so simplify the code. While at it,
print warning messages if power up calls fail.

No functional changes.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220401173042.17467-4-kvalo@kernel.org
2 years agoath11k: mhi: add error handling for suspend and resume
Kalle Valo [Tue, 5 Apr 2022 08:26:39 +0000 (11:26 +0300)]
ath11k: mhi: add error handling for suspend and resume

While reviewing the mhi.c I noticed we were just ignoring the errors coming
from MHI subsystem during suspend and resume. Add proper checks and warning
messages. Also pass the error value to callers.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220401173042.17467-3-kvalo@kernel.org
2 years agoath11k: mhi: remove state machine
Kalle Valo [Fri, 1 Apr 2022 17:30:40 +0000 (20:30 +0300)]
ath11k: mhi: remove state machine

State machines are difficult to understand and in this case it's just useless,
which is shown by the diffstat. So remove it entirely to make the code simpler.

No functional changes.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220401173042.17467-2-kvalo@kernel.org
2 years agortw89: handle potential uninitialized variable
Ping-Ke Shih [Fri, 18 Mar 2022 03:52:02 +0000 (11:52 +0800)]
rtw89: handle potential uninitialized variable

The smatch reports:
 rtw8852a.c:1857 rtw8852a_btc_set_wl_txpwr_ctrl() error: uninitialized symbol '_cur'.
 rtw8852a.c:1858 rtw8852a_btc_set_wl_txpwr_ctrl() error: uninitialized symbol '_cur'.

This is because rtw89_mac_txpwr_read32() can possibly return before setting
argument _cur, and the caller will use the uninitialized value. To fix this
problem, check the return value of rtw89_mac_txpwr_read32().

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318035202.42437-1-pkshih@realtek.com
2 years agortw89: read RX bandwidth from v1 type RX descriptor
Ping-Ke Shih [Fri, 18 Mar 2022 02:32:14 +0000 (10:32 +0800)]
rtw89: read RX bandwidth from v1 type RX descriptor

8852C uses different fields to represent RX bandwidth. Since other fields
are the same, I check chip_id to get bandwidth instead of creating another
v1 function.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318023214.32411-12-pkshih@realtek.com
2 years agortw89: support hardware generate security header
Ping-Ke Shih [Fri, 18 Mar 2022 02:32:13 +0000 (10:32 +0800)]
rtw89: support hardware generate security header

The newer chip will generate security header itself, so don't set
IEEE80211_KEY_FLAG_GENERATE_IV in this kind of chip. But, it needs to fill
key_index, PN and 802.11 header length to TX descriptor, and then hardware
uses these to generate security header.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318023214.32411-11-pkshih@realtek.com
2 years agortw89: support variant of fill_txdesc
Ping-Ke Shih [Fri, 18 Mar 2022 02:32:12 +0000 (10:32 +0800)]
rtw89: support variant of fill_txdesc

The txdesc is descriptor related to skb->data. The v1 version contains
8 dwords txwd_body and 6 dwords txwd_info, and the format is also different
from original one.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318023214.32411-10-pkshih@realtek.com
2 years agortw89: pci: support variant of fill_txaddr_info
Ping-Ke Shih [Fri, 18 Mar 2022 02:32:11 +0000 (10:32 +0800)]
rtw89: pci: support variant of fill_txaddr_info

The txaddr_info is used to fill the DMA address of skb->data. The v1
version can support up to 10 entries, but the maximum size of each entry
is 2047, so it fill more than one entry for large packet, like 3000 bytes.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318023214.32411-9-pkshih@realtek.com
2 years agortw89: add chip_info::h2c_desc_size/fill_txdesc_fwcmd to support new chips
Ping-Ke Shih [Fri, 18 Mar 2022 02:32:10 +0000 (10:32 +0800)]
rtw89: add chip_info::h2c_desc_size/fill_txdesc_fwcmd to support new chips

8852A and 8852C use different H2C header and size, so add h2c_desc_size
to allocate different header size and fill content by fill_txdesc_fwcmd.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318023214.32411-8-pkshih@realtek.com
2 years agortw89: disabled IGI configuration for unsupported hardware
Johnson Lin [Fri, 18 Mar 2022 02:32:09 +0000 (10:32 +0800)]
rtw89: disabled IGI configuration for unsupported hardware

Bypass IGI, known as Rx gain, adjustment flow for incompatible hardware
architectures.

Signed-off-by: Johnson Lin <johnson.lin@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318023214.32411-7-pkshih@realtek.com
2 years agortw89: packed IGI configuration flow into function for DIG feature
Johnson Lin [Fri, 18 Mar 2022 02:32:08 +0000 (10:32 +0800)]
rtw89: packed IGI configuration flow into function for DIG feature

Refinement of DIG flow, a mechanism to adjust Rx gain for better Rx
performance, by packing IGI(initial gain index) configuration flow into
one function.

Signed-off-by: Johnson Lin <johnson.lin@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318023214.32411-6-pkshih@realtek.com
2 years agortw89: regd: update mapping table to R59-R32
Zong-Zhe Yang [Fri, 18 Mar 2022 02:32:07 +0000 (10:32 +0800)]
rtw89: regd: update mapping table to R59-R32

Update notes:
Configure rtw89_regulatory for 6G band according to country.
Adjust country GB to use RTW89_UK entry on all bands.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318023214.32411-5-pkshih@realtek.com
2 years agortw89: regd: consider 6G band
Zong-Zhe Yang [Fri, 18 Mar 2022 02:32:06 +0000 (10:32 +0800)]
rtw89: regd: consider 6G band

Wrap regd debug dump into a macro and add dump for 6G band field.
Extend the macro used to configure regd table to account for multiple
bands beyond 2G and 5G.

And the follow-up commit will configure the corresponding values for
6G band into regd table.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318023214.32411-4-pkshih@realtek.com
2 years agortw89: 8852a: update txpwr tables to HALRF_027_00_038
Zong-Zhe Yang [Fri, 18 Mar 2022 02:32:05 +0000 (10:32 +0800)]
rtw89: 8852a: update txpwr tables to HALRF_027_00_038

Update notes:
TX power by rate table is not changed.
TX power limit table configures values for UK.
TX power limit RU table configures values for UK.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318023214.32411-3-pkshih@realtek.com
2 years agortw89: add UK to regulation type
Zong-Zhe Yang [Fri, 18 Mar 2022 02:32:04 +0000 (10:32 +0800)]
rtw89: add UK to regulation type

Add RTW89_UK to enum rtw89_regulation_type.
The follow-up commit will configure the corresponding values for it
to TX power tables.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318023214.32411-2-pkshih@realtek.com
2 years agortw89: reduce export symbol number of mac size and quota
Ping-Ke Shih [Tue, 15 Mar 2022 01:55:22 +0000 (09:55 +0800)]
rtw89: reduce export symbol number of mac size and quota

An export symbol costs about 40 bytes (in x86 with gcc), so use a structure
containing these small arrays to reduce code size.

   text    data     bss     dec     hex filename
  34932    1410       0   36342    8df6 mac.o (before)
  34276    1258       0   35534    8ace mac.o (after)

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220315015522.11366-1-pkshih@realtek.com
2 years agortw89: support FW crash simulation
Zong-Zhe Yang [Mon, 14 Mar 2022 07:12:50 +0000 (15:12 +0800)]
rtw89: support FW crash simulation

Originally, there is already a mechanism, SER (system error recover),
to deal with HW/FW recovery. After FW v0.13.36.0, FW supports a H2C
(host to chip) command to make a CPU exception. Then, SER is supposed
to catch this FW crash and do L2 reset. This feature is a simulation
to verify if flow of recovering from FW crash works.

Usage of fw_crash debugfs is as the following.
$ echo 1 > fw_crash // trigger FW crash and wait SER handling
$ cat fw_crash // return 0 if restart has been done

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220314071250.40292-9-pkshih@realtek.com
2 years agortw89: reconstruct fw feature
Zong-Zhe Yang [Mon, 14 Mar 2022 07:12:49 +0000 (15:12 +0800)]
rtw89: reconstruct fw feature

As the fw features gradually increase, it would be better that
we have a set of methods to maintain fw features instead of using
scattered bool variables.

We reconstruct the way fw recognize features, and introduce
RTW89_CHK_FW_FEATURE() / RTW89_SET_FW_FEATURE() to check / set
fw features for uses.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220314071250.40292-8-pkshih@realtek.com
2 years agortw89: ser: dump fw backtrace while L2 reset
Zong-Zhe Yang [Mon, 14 Mar 2022 07:12:48 +0000 (15:12 +0800)]
rtw89: ser: dump fw backtrace while L2 reset

Read FW backtrace entry through FW reserved payload engine, and then
add FW backtrace dump during SER (system error recover) L2 reset process.
It contains a list of RA (return address) and SP (stack pointer) which
gives us a chance to trace back the call stack of FW.

Moreover, if core dump might have wrong content due to error during
dumping, we won't invoke device core dump framework. For this case,
rtw89_ser_cd_free() is added to free buffer by ourselves.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220314071250.40292-7-pkshih@realtek.com
2 years agortw89: ser: dump memory for fw payload engine while L2 reset
Zong-Zhe Yang [Mon, 14 Mar 2022 07:12:47 +0000 (15:12 +0800)]
rtw89: ser: dump memory for fw payload engine while L2 reset

When FW encounters exception or assertion, SER L2 reset process will start.
It will dump some error information and re-download FW eventually. Since
such errors are usually critical, we would like to keep more information
about error to increase possibility of analysis and debugging FW. We first
add FW payload engine (fw reserved playoad engine, fw_rsvd_ple) memory
dump. FW will record things like CPU registers, backtrace entry, etc. in it
for debugging.

Moreover, device core dump framework is used and wrapped to collect kinds
of dumps during SER L2 reset process.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220314071250.40292-6-pkshih@realtek.com
2 years agortw89: ser: control hci interrupts on/off by state
Zong-Zhe Yang [Mon, 14 Mar 2022 07:12:46 +0000 (15:12 +0800)]
rtw89: ser: control hci interrupts on/off by state

While SER (system error recover) is processing, it's supposed to mean
something is under recovery. So, disable interrupts (excluding the one
of halt which could be used during SER) to avoid unexpected behavior.
And then, enable interrupts after SER is done.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220314071250.40292-5-pkshih@realtek.com
2 years agortw89: mac: correct decision on error status by scenario
Zong-Zhe Yang [Mon, 14 Mar 2022 07:12:45 +0000 (15:12 +0800)]
rtw89: mac: correct decision on error status by scenario

The raw error code might combine error scenario and error status.
But, the error scenario isn't parsed previously. It makes us mishandle
cpu exception and assertion. Now, we correct the error status for them.

Besides, a few uses of error status are refined.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220314071250.40292-4-pkshih@realtek.com
2 years agortw89: mac: move table of mem base addr to common
Zong-Zhe Yang [Mon, 14 Mar 2022 07:12:44 +0000 (15:12 +0800)]
rtw89: mac: move table of mem base addr to common

Previously, mac_mem_base_addr_table was declared in debug.c locally
because it's only used via debugfs to dump mac memory. Now, we plan to
refine SER (system error recover) flow which will also need to dump mac
memory to somewhere as information for error which is catched. So, we
move mac_mem_base_addr_table to mac.c rtw89_mac_mem_base_addrs earlier
as common code.

(no logic is changed)

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220314071250.40292-3-pkshih@realtek.com
2 years agortw89: ser: fix CAM leaks occurring in L2 reset
Zong-Zhe Yang [Mon, 14 Mar 2022 07:12:43 +0000 (15:12 +0800)]
rtw89: ser: fix CAM leaks occurring in L2 reset

The CAM, meaning address CAM and bssid CAM here, will get leaks during
SER (system error recover) L2 reset process and ieee80211_restart_hw()
which is called by L2 reset process eventually.

The normal flow would be like
-> add interface (acquire 1)
-> enter ips (release 1)
-> leave ips (acquire 1)
-> connection (occupy 1) <(A) 1 leak after L2 reset if non-sec connection>

The ieee80211_restart_hw() flow (under connection)
-> ieee80211 reconfig
-> add interface (acquire 1)
-> leave ips (acquire 1)
-> connection (occupy (A) + 2) <(B) 1 more leak>

Originally, CAM is released before HW restart only if connection is under
security. Now, release CAM whatever connection it is to fix leak in (A).
OTOH, check if CAM is already valid to avoid acquiring multiple times to
fix (B).

Besides, if AP mode, release address CAM of all stations before HW restart.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220314071250.40292-2-pkshih@realtek.com
2 years agortw88: change idle mode condition during hw_scan
Po-Hao Huang [Fri, 18 Mar 2022 03:43:16 +0000 (11:43 +0800)]
rtw88: change idle mode condition during hw_scan

Previously we only consider single interface's status, idle mode
behavior could be unexpected when multiple interfaces is active.
Change to enter/leave idle mode by mac80211's configuration state.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220318034316.40720-1-pkshih@realtek.com
2 years agoiwlwifi: mei: Replace zero-length array with flexible-array member
Gustavo A. R. Silva [Wed, 16 Feb 2022 19:50:30 +0000 (13:50 -0600)]
iwlwifi: mei: Replace zero-length array with flexible-array member

There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or zero-length arrays should
no longer be used[2].

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays

Link: https://github.com/KSPP/linux/issues/78
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220216195030.GA904170@embeddedor
2 years agoiwlwifi: fw: Replace zero-length arrays with flexible-array members
Gustavo A. R. Silva [Wed, 16 Feb 2022 19:50:15 +0000 (13:50 -0600)]
iwlwifi: fw: Replace zero-length arrays with flexible-array members

There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or zero-length arrays should
no longer be used[2].

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays

Link: https://github.com/KSPP/linux/issues/78
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220216195015.GA904148@embeddedor
2 years agonet: ensure net_todo_list is processed quickly
Johannes Berg [Mon, 4 Apr 2022 09:38:47 +0000 (11:38 +0200)]
net: ensure net_todo_list is processed quickly

In [1], Will raised a potential issue that the cfg80211 code,
which does (from a locking perspective)

  rtnl_lock()
  wiphy_lock()
  rtnl_unlock()

might be suspectible to ABBA deadlocks, because rtnl_unlock()
calls netdev_run_todo(), which might end up calling rtnl_lock()
again, which could then deadlock (see the comment in the code
added here for the scenario).

Some back and forth and thinking ensued, but clearly this can't
happen if the net_todo_list is empty at the rtnl_unlock() here.
Clearly, the code here cannot actually put an entry on it, and
all other users of rtnl_unlock() will empty it since that will
always go through netdev_run_todo(), emptying the list.

So the only other way to get there would be to add to the list
and then unlock the RTNL without going through rtnl_unlock(),
which is only possible through __rtnl_unlock(). However, this
isn't exported and not used in many places, and none of them
seem to be able to unregister before using it.

Therefore, add a WARN_ON() in the code to ensure this invariant
won't be broken, so that the cfg80211 (or any similar) code
stays safe.

[1] https://lore.kernel.org/r/Yjzpo3TfZxtKPMAG@google.com

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20220404113847.0ee02e4a70da.Ic73d206e217db20fd22dcec14fe5442ca732804b@changeid
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agomlxsw: spectrum_router: simplify list unwinding
Tom Rix [Sat, 2 Apr 2022 12:15:16 +0000 (08:15 -0400)]
mlxsw: spectrum_router: simplify list unwinding

The setting of i here
err_nexthop6_group_get:
i = nrt6;
Is redundant, i is already nrt6.  So remove
this statement.

The for loop for the unwinding
err_rt6_create:
for (i--; i >= 0; i--) {
Is equivelent to
for (; i > 0; i--) {

Two consecutive labels can be reduced to one.

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20220402121516.2750284-1-trix@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2 years agoath11k: fix driver initialization failure with WoW unsupported hw
Nagarajan Maran [Fri, 1 Apr 2022 11:53:10 +0000 (14:53 +0300)]
ath11k: fix driver initialization failure with WoW unsupported hw

In the "ath11k_wow_init", error value "EINVAL" is returned
when the check for firmware support of WoW feature fails,
which in turn stops the driver initialization.

Warning message:
[   31.040144] ------------[ cut here ]------------
[   31.040185] WARNING: CPU: 1 PID: 51 at drivers/net/wireless/ath/ath11k/wow.c:813 ath11k_wow_init+0xc8/0x13a8 [ath11k]
[   31.043846] Modules linked in: ath11k_pci ath11k qmi_helpers
[   31.054341] CPU: 1 PID: 51 Comm: kworker/u8:1 Tainted: G        W 5.17.0-wt-ath-594817-ga7f6aa925cf8-dirty #17
[   31.060078] Hardware name: Qualcomm Technologies, Inc. IPQ8074/AP-HK10-C2 (DT)
[   31.070578] Workqueue: ath11k_qmi_driver_event ath11k_qmi_driver_event_work [ath11k]
[   31.077782] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   31.085676] pc : ath11k_wow_init+0xc8/0x13a8 [ath11k]
[   31.092359] lr : ath11k_mac_register+0x548/0xb98 [ath11k]
[   31.097567] sp : ffff80000aa13c40
[   31.102944] x29: ffff80000aa13c40 x28: ffff800009184390 x27: ffff000002959f20
[   31.106251] x26: ffff000002828000 x25: ffff000002830000 x24: ffff000002830000
[   31.113369] x23: ffff000002820000 x22: ffff00000282854c x21: 0000000000000000
[   31.120487] x20: ffff00000295cf20 x19: ffff000002828540 x18: 0000000000000031
[   31.127605] x17: 0000000000000004 x16: ffff0000028285fc x15: ffff00000295b040
[   31.134723] x14: 0000000000000067 x13: ffff00000282859c x12: 000000000000000d
[   31.141840] x11: 0000000000000018 x10: 0000000000000004 x9 : 0000000000000000
[   31.148959] x8 : ffff00000289d680 x7 : 0000000000000000 x6 : 000000000000003f
[   31.156077] x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff000002820968
[   31.163196] x2 : 0000000000000080 x1 : 0080008af9981779 x0 : ffff000002959f20
[   31.170314] Call trace:
[   31.177421]  ath11k_wow_init+0xc8/0x13a8 [ath11k]
[   31.179684]  ath11k_core_qmi_firmware_ready+0x430/0x5e0 [ath11k]
[   31.184548]  ath11k_qmi_driver_event_work+0x16c/0x4f8 [ath11k]
[   31.190623]  process_one_work+0x134/0x350
[   31.196262]  worker_thread+0x12c/0x450
[   31.200340]  kthread+0xf4/0x110
[   31.203986]  ret_from_fork+0x10/0x20
[   31.207026] ---[ end trace 0000000000000000 ]---
[   31.210894] ath11k_pci 0000:01:00.0: failed to init wow: -22
[   31.215467] ath11k_pci 0000:01:00.0: failed register the radio with mac80211: -22
[   31.221117] ath11k_pci 0000:01:00.0: failed to create pdev core: -22

Fix this by returning value "0" when FW doesn't support WoW
to allow driver to proceed with initialize sequence and also
remove the unnecessary "WARN_ON".

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

Fixes: ba9177fcef21 ("ath11k: Add basic WoW functionalities")
Signed-off-by: Nagarajan Maran <quic_nmaran@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220331073110.3846-1-quic_nmaran@quicinc.com
2 years agoath11k: Remove unnecessary delay in ath11k_core_suspend
Baochen Qiang [Fri, 1 Apr 2022 11:53:10 +0000 (14:53 +0300)]
ath11k: Remove unnecessary delay in ath11k_core_suspend

The intended delay in ath11k_core_suspend is introduced in commit
d1b0c33850d2 ("ath11k: implement suspend for QCA6390 PCI devices"),
now with ath11k_mac_wait_tx_complete added in commit ba9177fcef21
("ath11k: Add basic WoW functionalities"), that delay is not
necessary now, so remove it.

This is found in code review.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-02431-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220331002105.1162099-1-quic_bqiang@quicinc.com
2 years agoath11k: Change max no of active probe SSID and BSSID to fw capability
Karthikeyan Kathirvel [Fri, 1 Apr 2022 11:53:09 +0000 (14:53 +0300)]
ath11k: Change max no of active probe SSID and BSSID to fw capability

The maximum number of SSIDs in a for active probe requests is currently
reported as 16 (WLAN_SCAN_PARAMS_MAX_SSID) when registering the driver.
The scan_req_params structure only has the capacity to hold 10 SSIDs.
This leads to a buffer overflow which can be triggered from
wpa_supplicant in userspace. When copying the SSIDs into the
scan_req_params structure in the ath11k_mac_op_hw_scan route, it can
overwrite the extraie pointer.

Firmware supports 16 ssid * 4 bssid, for each ssid 4 bssid combo probe
request will be sent, so totally 64 probe requests supported. So
set both max ssid and bssid to 16 and 4 respectively. Remove the
redundant macros of ssid and bssid.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01300-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Kathirvel <quic_kathirve@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220329150221.21907-1-quic_kathirve@quicinc.com
2 years agoath11k: Remove core PCI references from PCI common code
Manikanta Pubbisetty [Fri, 1 Apr 2022 11:53:08 +0000 (14:53 +0300)]
ath11k: Remove core PCI references from PCI common code

Remove core PCI and ath11k PCI references(struct ath11k_pci)
from PCI common code. Since, PCI common code will be used
by hybrid bus devices, this code should be independent
from ATH11K PCI references and Linux core PCI references
like struct pci_dev.

Since this change introduces function callbacks for bus wakeup
and bus release operations, wakeup_mhi HW param is no longer
needed and hence it is removed completely. Alternatively, bus
wakeup/release ops for QCA9074 are initialized to NULL as
QCA9704 does not need bus wakeup/release for register accesses.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1

Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220328055714.6449-6-quic_mpubbise@quicinc.com
2 years agoath11k: Refactor MSI logic to support WCN6750
Manikanta Pubbisetty [Fri, 1 Apr 2022 11:53:08 +0000 (14:53 +0300)]
ath11k: Refactor MSI logic to support WCN6750

Refactor MSI logic in order to support hybrid bus devices
like WCN6750.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1

Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220328055714.6449-5-quic_mpubbise@quicinc.com
2 years agoath11k: Choose MSI config based on HW revision
Manikanta Pubbisetty [Fri, 1 Apr 2022 11:53:08 +0000 (14:53 +0300)]
ath11k: Choose MSI config based on HW revision

Instead of selecting MSI config based on magic numbers, make
the assignment based on HW revision. The logic is similar to
the selection of HW params. This improves readability of the
code and also simplifies new additions.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1

Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220328055714.6449-4-quic_mpubbise@quicinc.com
2 years agoath11k: Refactor PCI code to support WCN6750
Manikanta Pubbisetty [Fri, 1 Apr 2022 11:53:08 +0000 (14:53 +0300)]
ath11k: Refactor PCI code to support WCN6750

Unlike other ATH11K PCIe devices which are enumerated by APSS
processor (Application Processor SubSystem), WCN6750 gets
enumerated by the WPSS Q6 processor (Wireless Processor SubSystem);
In simple terms, though WCN6750 is PCIe device, it is not attached
to the APSS processor, APSS will not know of such a device being
present in the system and therefore WCN6750 will be registered as
a platform device to the kernel core like other supported AHB
devices.

WCN6750 needs both AHB and PCI APIs for it's operation, it uses
AHB APIs for device probe/boot and PCI APIs for device setup and
register accesses. Because of this nature, it is referred as a
hybrid bus device.

Refactor PCI code to support hybrid bus devices like WCN6750.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1

Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220328055714.6449-3-quic_mpubbise@quicinc.com
2 years agoath11k: PCI changes to support WCN6750
Manikanta Pubbisetty [Fri, 1 Apr 2022 11:53:08 +0000 (14:53 +0300)]
ath11k: PCI changes to support WCN6750

In order to add the support for WCN6750 in ATH11K , it is
required to move certain PCI definitions to the header file.
As a result, add ATH11K_PCI_* prefix to these definitions.

Also, change the scope of certain PCI APIs that are required
to enable WCN6750 from static to global.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1

Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220328055714.6449-2-quic_mpubbise@quicinc.com
2 years agoLinux 5.18-rc1
Linus Torvalds [Sun, 3 Apr 2022 21:08:21 +0000 (14:08 -0700)]
Linux 5.18-rc1

2 years agoMerge tag 'trace-v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Sun, 3 Apr 2022 19:26:01 +0000 (12:26 -0700)]
Merge tag 'trace-v5.18-2' of git://git./linux/kernel/git/rostedt/linux-trace

Pull more tracing updates from Steven Rostedt:

 - Rename the staging files to give them some meaning. Just
   stage1,stag2,etc, does not show what they are for

 - Check for NULL from allocation in bootconfig

 - Hold event mutex for dyn_event call in user events

 - Mark user events to broken (to work on the API)

 - Remove eBPF updates from user events

 - Remove user events from uapi header to keep it from being installed.

 - Move ftrace_graph_is_dead() into inline as it is called from hot
   paths and also convert it into a static branch.

* tag 'trace-v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Move user_events.h temporarily out of include/uapi
  ftrace: Make ftrace_graph_is_dead() a static branch
  tracing: Set user_events to BROKEN
  tracing/user_events: Remove eBPF interfaces
  tracing/user_events: Hold event_mutex during dyn_event_add
  proc: bootconfig: Add null pointer check
  tracing: Rename the staging files for trace_events

2 years agoMerge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Linus Torvalds [Sun, 3 Apr 2022 19:21:14 +0000 (12:21 -0700)]
Merge tag 'clk-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk fix from Stephen Boyd:
 "A single revert to fix a boot regression seen when clk_put() started
  dropping rate range requests. It's best to keep various systems
  booting so we'll kick this out and try again next time"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  Revert "clk: Drop the rate range on clk_put()"

2 years agoMerge tag 'x86-urgent-2022-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 3 Apr 2022 19:15:47 +0000 (12:15 -0700)]
Merge tag 'x86-urgent-2022-04-03' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:
 "A set of x86 fixes and updates:

   - Make the prctl() for enabling dynamic XSTATE components correct so
     it adds the newly requested feature to the permission bitmap
     instead of overwriting it. Add a selftest which validates that.

   - Unroll string MMIO for encrypted SEV guests as the hypervisor
     cannot emulate it.

   - Handle supervisor states correctly in the FPU/XSTATE code so it
     takes the feature set of the fpstate buffer into account. The
     feature sets can differ between host and guest buffers. Guest
     buffers do not contain supervisor states. So far this was not an
     issue, but with enabling PASID it needs to be handled in the buffer
     offset calculation and in the permission bitmaps.

   - Avoid a gazillion of repeated CPUID invocations in by caching the
     values early in the FPU/XSTATE code.

   - Enable CONFIG_WERROR in x86 defconfig.

   - Make the X86 defconfigs more useful by adapting them to Y2022
     reality"

* tag 'x86-urgent-2022-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu/xstate: Consolidate size calculations
  x86/fpu/xstate: Handle supervisor states in XSTATE permissions
  x86/fpu/xsave: Handle compacted offsets correctly with supervisor states
  x86/fpu: Cache xfeature flags from CPUID
  x86/fpu/xsave: Initialize offset/size cache early
  x86/fpu: Remove unused supervisor only offsets
  x86/fpu: Remove redundant XCOMP_BV initialization
  x86/sev: Unroll string mmio with CC_ATTR_GUEST_UNROLL_STRING_IO
  x86/config: Make the x86 defconfigs a bit more usable
  x86/defconfig: Enable WERROR
  selftests/x86/amx: Update the ARCH_REQ_XCOMP_PERM test
  x86/fpu/xstate: Fix the ARCH_REQ_XCOMP_PERM implementation

2 years agoMerge tag 'core-urgent-2022-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 3 Apr 2022 19:08:26 +0000 (12:08 -0700)]
Merge tag 'core-urgent-2022-04-03' of git://git./linux/kernel/git/tip/tip

Pull RT signal fix from Thomas Gleixner:
 "Revert the RT related signal changes. They need to be reworked and
  generalized"

* tag 'core-urgent-2022-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "signal, x86: Delay calling signals in atomic on RT enabled kernels"

2 years agoMerge tag 'dma-mapping-5.18-1' of git://git.infradead.org/users/hch/dma-mapping
Linus Torvalds [Sun, 3 Apr 2022 17:31:00 +0000 (10:31 -0700)]
Merge tag 'dma-mapping-5.18-1' of git://git.infradead.org/users/hch/dma-mapping

Pull more dma-mapping updates from Christoph Hellwig:

 - fix a regression in dma remap handling vs AMD memory encryption (me)

 - finally kill off the legacy PCI DMA API (Christophe JAILLET)

* tag 'dma-mapping-5.18-1' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: move pgprot_decrypted out of dma_pgprot
  PCI/doc: cleanup references to the legacy PCI DMA API
  PCI: Remove the deprecated "pci-dma-compat.h" API

2 years agoMerge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Linus Torvalds [Sun, 3 Apr 2022 17:17:48 +0000 (10:17 -0700)]
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:

 - avoid unnecessary rebuilds for library objects

 - fix return value of __setup handlers

 - fix invalid input check for "crashkernel=" kernel option

 - silence KASAN warnings in unwind_frame

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 9191/1: arm/stacktrace, kasan: Silence KASAN warnings in unwind_frame()
  ARM: 9190/1: kdump: add invalid input check for 'crashkernel=0'
  ARM: 9187/1: JIVE: fix return value of __setup handler
  ARM: 9189/1: decompressor: fix unneeded rebuilds of library objects

2 years agoRevert "clk: Drop the rate range on clk_put()"
Stephen Boyd [Sun, 3 Apr 2022 02:28:18 +0000 (19:28 -0700)]
Revert "clk: Drop the rate range on clk_put()"

This reverts commit 7dabfa2bc4803eed83d6f22bd6f045495f40636b. There are
multiple reports that this breaks boot on various systems. The common
theme is that orphan clks are having rates set on them when that isn't
expected. Let's revert it out for now so that -rc1 boots.

Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Reported-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Link: https://lore.kernel.org/r/366a0232-bb4a-c357-6aa8-636e398e05eb@samsung.com
Cc: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20220403022818.39572-1-sboyd@kernel.org
2 years agoMerge tag 'perf-tools-for-v5.18-2022-04-02' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Sat, 2 Apr 2022 19:57:17 +0000 (12:57 -0700)]
Merge tag 'perf-tools-for-v5.18-2022-04-02' of git://git./linux/kernel/git/acme/linux

Pull more perf tools updates from Arnaldo Carvalho de Melo:

 - Avoid SEGV if core.cpus isn't set in 'perf stat'.

 - Stop depending on .git files for building PERF-VERSION-FILE, used in
   'perf --version', fixing some perf tools build scenarios.

 - Convert tracepoint.py example to python3.

 - Update UAPI header copies from the kernel sources: socket,
   mman-common, msr-index, KVM, i915 and cpufeatures.

 - Update copy of libbpf's hashmap.c.

 - Directly return instead of using local ret variable in
   evlist__create_syswide_maps(), found by coccinelle.

* tag 'perf-tools-for-v5.18-2022-04-02' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf python: Convert tracepoint.py example to python3
  perf evlist: Directly return instead of using local ret variable
  perf cpumap: More cpu map reuse by merge.
  perf cpumap: Add is_subset function
  perf evlist: Rename cpus to user_requested_cpus
  perf tools: Stop depending on .git files for building PERF-VERSION-FILE
  tools headers cpufeatures: Sync with the kernel sources
  tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
  tools headers UAPI: Sync linux/kvm.h with the kernel sources
  tools kvm headers arm64: Update KVM headers from the kernel sources
  tools arch x86: Sync the msr-index.h copy with the kernel sources
  tools headers UAPI: Sync asm-generic/mman-common.h with the kernel
  perf beauty: Update copy of linux/socket.h with the kernel sources
  perf tools: Update copy of libbpf's hashmap.c
  perf stat: Avoid SEGV if core.cpus isn't set

2 years agoMerge tag 'kbuild-fixes-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masah...
Linus Torvalds [Sat, 2 Apr 2022 19:33:31 +0000 (12:33 -0700)]
Merge tag 'kbuild-fixes-v5.18' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Fix empty $(PYTHON) expansion.

 - Fix UML, which got broken by the attempt to suppress Clang warnings.

 - Fix warning message in modpost.

* tag 'kbuild-fixes-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  modpost: restore the warning message for missing symbol versions
  Revert "um: clang: Strip out -mno-global-merge from USER_CFLAGS"
  kbuild: Remove '-mno-global-merge'
  kbuild: fix empty ${PYTHON} in scripts/link-vmlinux.sh
  kconfig: remove stale comment about removed kconfig_print_symbol()

2 years agoMerge tag 'mips_5.18_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Linus Torvalds [Sat, 2 Apr 2022 19:14:38 +0000 (12:14 -0700)]
Merge tag 'mips_5.18_1' of git://git./linux/kernel/git/mips/linux

Pull MIPS fixes from Thomas Bogendoerfer:

 - build fix for gpio

 - fix crc32 build problems

 - check for failed memory allocations

* tag 'mips_5.18_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: crypto: Fix CRC32 code
  MIPS: rb532: move GPIOD definition into C-files
  MIPS: lantiq: check the return value of kzalloc()
  mips: sgi-ip22: add a check for the return of kzalloc()

2 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sat, 2 Apr 2022 19:09:02 +0000 (12:09 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:

 - Only do MSR filtering for MSRs accessed by rdmsr/wrmsr

 - Documentation improvements

 - Prevent module exit until all VMs are freed

 - PMU Virtualization fixes

 - Fix for kvm_irq_delivery_to_apic_fast() NULL-pointer dereferences

 - Other miscellaneous bugfixes

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (42 commits)
  KVM: x86: fix sending PV IPI
  KVM: x86/mmu: do compare-and-exchange of gPTE via the user address
  KVM: x86: Remove redundant vm_entry_controls_clearbit() call
  KVM: x86: cleanup enter_rmode()
  KVM: x86: SVM: fix tsc scaling when the host doesn't support it
  kvm: x86: SVM: remove unused defines
  KVM: x86: SVM: move tsc ratio definitions to svm.h
  KVM: x86: SVM: fix avic spec based definitions again
  KVM: MIPS: remove reference to trap&emulate virtualization
  KVM: x86: document limitations of MSR filtering
  KVM: x86: Only do MSR filtering when access MSR by rdmsr/wrmsr
  KVM: x86/emulator: Emulate RDPID only if it is enabled in guest
  KVM: x86/pmu: Fix and isolate TSX-specific performance event logic
  KVM: x86: mmu: trace kvm_mmu_set_spte after the new SPTE was set
  KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs
  KVM: x86: Trace all APICv inhibit changes and capture overall status
  KVM: x86: Add wrappers for setting/clearing APICv inhibits
  KVM: x86: Make APICv inhibit reasons an enum and cleanup naming
  KVM: X86: Handle implicit supervisor access with SMAP
  KVM: X86: Rename variable smap to not_smap in permission_fault()
  ...

2 years agomodpost: restore the warning message for missing symbol versions
Masahiro Yamada [Fri, 1 Apr 2022 15:56:10 +0000 (00:56 +0900)]
modpost: restore the warning message for missing symbol versions

This log message was accidentally chopped off.

I was wondering why this happened, but checking the ML log, Mark
precisely followed my suggestion [1].

I just used "..." because I was too lazy to type the sentence fully.
Sorry for the confusion.

[1]: https://lore.kernel.org/all/CAK7LNAR6bXXk9-ZzZYpTqzFqdYbQsZHmiWspu27rtsFxvfRuVA@mail.gmail.com/

Fixes: 4a6795933a89 ("kbuild: modpost: Explicitly warn about unprototyped symbols")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
2 years agoMerge tag 'for-5.18/drivers-2022-04-02' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 2 Apr 2022 18:03:03 +0000 (11:03 -0700)]
Merge tag 'for-5.18/drivers-2022-04-02' of git://git.kernel.dk/linux-block

Pull block driver fix from Jens Axboe:
 "Got two reports on nbd spewing warnings on load now, which is a
  regression from a commit that went into your tree yesterday.

  Revert the problematic change for now"

* tag 'for-5.18/drivers-2022-04-02' of git://git.kernel.dk/linux-block:
  Revert "nbd: fix possible overflow on 'first_minor' in nbd_dev_add()"

2 years agoMerge tag 'pci-v5.18-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 2 Apr 2022 17:54:52 +0000 (10:54 -0700)]
Merge tag 'pci-v5.18-changes-2' of git://git./linux/kernel/git/helgaas/pci

Pull pci fix from Bjorn Helgaas:

 - Fix Hyper-V "defined but not used" build issue added during merge
   window (YueHaibing)

* tag 'pci-v5.18-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: hv: Remove unused hv_set_msi_entry_from_desc()

2 years agoMerge tag 'tag-chrome-platform-for-v5.18' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Sat, 2 Apr 2022 17:44:18 +0000 (10:44 -0700)]
Merge tag 'tag-chrome-platform-for-v5.18' of git://git./linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Benson Leung:
 "cros_ec_typec:

   - Check for EC device - Fix a crash when using the cros_ec_typec
     driver on older hardware not capable of typec commands

   - Make try power role optional

   - Mux configuration reorganization series from Prashant

  cros_ec_debugfs:

   - Fix use after free. Thanks Tzung-bi

  sensorhub:

   - cros_ec_sensorhub fixup - Split trace include file

  misc:

   - Add new mailing list for chrome-platform development:

chrome-platform@lists.linux.dev

     Now with patchwork!"

* tag 'tag-chrome-platform-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: cros_ec_debugfs: detach log reader wq from devm
  platform: chrome: Split trace include file
  platform/chrome: cros_ec_typec: Update mux flags during partner removal
  platform/chrome: cros_ec_typec: Configure muxes at start of port update
  platform/chrome: cros_ec_typec: Get mux state inside configure_mux
  platform/chrome: cros_ec_typec: Move mux flag checks
  platform/chrome: cros_ec_typec: Check for EC device
  platform/chrome: cros_ec_typec: Make try power role optional
  MAINTAINERS: platform-chrome: Add new chrome-platform@lists.linux.dev list

2 years agoRevert "nbd: fix possible overflow on 'first_minor' in nbd_dev_add()"
Jens Axboe [Sat, 2 Apr 2022 17:40:23 +0000 (11:40 -0600)]
Revert "nbd: fix possible overflow on 'first_minor' in nbd_dev_add()"

This reverts commit 6d35d04a9e18990040e87d2bbf72689252669d54.

Both Gabriel and Borislav report that this commit casues a regression
with nbd:

sysfs: cannot create duplicate filename '/dev/block/43:0'

Revert it before 5.18-rc1 and we'll investigage this separately in
due time.

Link: https://lore.kernel.org/all/YkiJTnFOt9bTv6A2@zn.tnic/
Reported-by: Gabriel L. Somlo <somlo@cmu.edu>
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2 years agowatch_queue: Free the page array when watch_queue is dismantled
Eric Dumazet [Mon, 28 Mar 2022 17:07:04 +0000 (18:07 +0100)]
watch_queue: Free the page array when watch_queue is dismantled

Commit 7ea1a0124b6d ("watch_queue: Free the alloc bitmap when the
watch_queue is torn down") took care of the bitmap, but not the page
array.

  BUG: memory leak
  unreferenced object 0xffff88810d9bc140 (size 32):
  comm "syz-executor335", pid 3603, jiffies 4294946994 (age 12.840s)
  hex dump (first 32 bytes):
    40 a7 40 04 00 ea ff ff 00 00 00 00 00 00 00 00  @.@.............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
     kmalloc_array include/linux/slab.h:621 [inline]
     kcalloc include/linux/slab.h:652 [inline]
     watch_queue_set_size+0x12f/0x2e0 kernel/watch_queue.c:251
     pipe_ioctl+0x82/0x140 fs/pipe.c:632
     vfs_ioctl fs/ioctl.c:51 [inline]
     __do_sys_ioctl fs/ioctl.c:874 [inline]
     __se_sys_ioctl fs/ioctl.c:860 [inline]
     __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860
     do_syscall_x64 arch/x86/entry/common.c:50 [inline]

Reported-by: syzbot+25ea042ae28f3888727a@syzkaller.appspotmail.com
Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Jann Horn <jannh@google.com>
Link: https://lore.kernel.org/r/20220322004654.618274-1-eric.dumazet@gmail.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>