Our binding handling for P2P-Device can run into the following
scenario, as observed by our testing:
- a station interface is connected on some channel
- the P2P-Device does a remain-on-channel (ROC) on that channel
- the ROC ends, and the P2P-Device is removed from the binding,
but the phy_ctxt pointer is left around as a PHY cache so we
don't need to recalibrate to the channel again and again in
case it's not shared
- a binding update by the station interface, even a removal,
will re-add the P2P-Device to the binding
- the P2P-Device is removed, which removes the PHY context, but
it's still in the binding so the firmware crashes
Since the P2P device is removed from the binding and only re-
added by unrelated code, but we want to keep the phy_ctxt around
as a cache for future ROC usage, fix it by adding a boolean that
indicates whether or not the P2P-Device should be added to the
binding, and handle that in the binding iterator. That way, the
station interface cannot re-add the P2P-Device to the binding
when that isn't active.
Assisted-by: Github Copilot:claude-opus-4-6
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20260527230313.07f94335ae06.I384238b0859343c4a9a9dda20682be1aad89cc9d@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Clearly, from a user perspective, it must be valid to configure
WoWLAN and then suspend while not connected to a network. Since
mac80211 doesn't distinguish these cases and simply calls the
driver to suspend whenever WoWLAN is configured, the driver has
to cleanly handle the case where it's called for WoWLAN, it's
not connected but there's also no netdetect configured.
Remove the WARN_ON() and keep returning 1 to disconnect and
then suspend.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://patch.msgid.link/20260527230313.19720967372b.Iff30814510a26f9f609f98eeea3111c50c1afb31@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
IWL_BZ_UCODE_CORE_MAX is undefined in cfg/rf-fm.c, this
causes __stringify(core) to turn it into the literal
token text, so MODULE_FIRMWARE entries are generated as
"iwlwifi...-cIWL_BZ_UCODE_CORE_MAX.ucode",
instead of the actual number.
This reverts the commit below.
Signed-off-by: Shahar Tzarfati <shahar.tzarfati@intel.com>
Link: https://patch.msgid.link/20260527230313.a10bc3359dca.I446a1340c635f07aff3efaba5317635e010c156f@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
While associated to MLD AP with active EMLSR, set all scan
operations as fast-balance scans. The only exception is when a
fragmented scan is planned (high traffic or low latency), in
which case the fragmented scan is preserved.
Signed-off-by: Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Link: https://patch.msgid.link/20260527230313.32d278842b0e.Ia3d73e4085eefc4d3921e93de4107b2d6a6f922e@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Add a new FW TLV (IWL_UCODE_TLV_FW_NAN_MAX_CHAN_SWITCH_TIME) that
allows the firmware to specify the NAN maximum channel switch time
in microseconds.
When the TLV is present, use its value for the NAN device capability.
Otherwise, fall back to the default of 4 milliseconds.
Signed-off-by: Israel Kozitz <israel.kozitz@intel.com>
Link: https://patch.msgid.link/20260527230313.e8ae1a3adacd.I15b933407ca3974a65047b63b4f9b00bed3520fb@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
The mimo field of the sta command is badly named. It really carries the
initial SMPS value as it is in the association request of the client
station (when we are the AP).
In NAN we don't have this information, just mark SMPS as disabled.
Link: https://patch.msgid.link/20260527230313.abd136be474e.I9eb663d953b482236345ffbcb611f28facea83c1@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Given that we now use v3 rates with FW index throughout,
_to_hwrate() is confusing, since the hardware still uses
the PLCP value, the driver just doesn't see that now (as
it talks to firmware, not hardware.)
Rename this to iwl_mvm_rate_idx_to_fw_idx() to more
clearly indicate what it's doing.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20260527230313.a60c8aea5b6c.I6af48d5d9748e184eed9d3437d312291cab61d7f@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
We dereference the mld_sta pointer before checking for NULL.
But we do check the sta pointer, and sta != NULL means mld_sta != NULL,
so there is no real issue.
Fix it anyway to silence the warning.
Link: https://patch.msgid.link/20260527200512.506707-2-miriam.rachel.korenblit@intel.com
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Currently, the dump code attempts to dump any number of
memories and register banks, as defined by the firmware.
Especially when the device is failing, this can lead to
excessive time spent attempting to acquire NIC access
over and over again.
Improve the code to only attempt to acquire NIC access
once or twice, but using the new memory dump functions
that may drop the spinlock etc. Mark all dump regions
that require NIC access, and skip them if we couldn't
obtain that.
In order to avoid CPU latency due to the increased time
holding the spinlock (and possibly disabling softirqs),
drop locks and call cond_resched() after each section
(if holding NIC access) but don't release HW NIC access.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20260527230313.bec886142cc8.I41f2eaf2403b38147504d5dab0a7414de2699adc@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
AX231 is a device that is based on AX211 that doesn't support 6E and
its bandwidth is limited to 80 MHz.
Just reuse the radio config from AX203 which has the exact same
characteristics.
It has a specific subdevice ID to allow the driver to differentiate
between AX211 and AX231.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20260512082114.0685ed313987.Ibcfa24e196ac778405d2843f0984b66ca167704e@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Pull-request includes many random fixes and new features.
Major changes are listed below:
rtl8xxxu:
* declare supported channel width by firmware report
rtw88:
* validate RX descriptor to avoid malformed data causing warnings
rtw89:
* support USB devices RTL8922AU
* add sysfs entry to show SN and UUID for specific USB devices
* support to switch USB 3.0 mode for higher performance
* add more fields (mainly SIG-A/SIG-B) to radiotap in monitor mode
* offload packed IO to firmware to reduce IO time (for USB devices)
* add debugfs to diagnose BB healthy
* more preparations for RTL8922DE
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Merge tag 'rtw-next-2026-06-03' of https://github.com/pkshih/rtw
Ping-Ke Shih says:
==================
rtw-next patches for -next
Pull-request includes many random fixes and new features.
Major changes are listed below:
rtl8xxxu:
* declare supported channel width by firmware report
rtw88:
* validate RX descriptor to avoid malformed data causing warnings
rtw89:
* support USB devices RTL8922AU
* add sysfs entry to show SN and UUID for specific USB devices
* support to switch USB 3.0 mode for higher performance
* add more fields (mainly SIG-A/SIG-B) to radiotap in monitor mode
* offload packed IO to firmware to reduce IO time (for USB devices)
* add debugfs to diagnose BB healthy
* more preparations for RTL8922DE
==================
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In AP mode, track the BSS non-DBE bandwidth and apply
that to all non-DBE clients, then track OMP updates
from the clients and enable/disable DBE accordingly.
For now don't send a response, clients need to have a
timer anyway (it's up to the driver to set the right
timeout in UHR capabilities.)
Link: https://patch.msgid.link/20260529102644.be84f2b055cc.I4d2c067dfe54c47621d5a872ca07a0e754d6c20f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There's similar code in two places in HT and HE, and we need to add
the same again for UHR. Rename ieee80211_link_sta_rc_update_omi()
to ieee80211_link_sta_update_rc_bw() and move it to sta_info.c and
update existing code that can use it to do so.
Link: https://patch.msgid.link/20260529102644.577c2f304d33.I09df4fce83c4e3e6deddfecbea74ffdbeedb4927@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
UHR requires MLO, not just formally but also in order
for the client to understand AP BSS parameter changes,
since the Critical Update Counter is inside the Multi-
Link Element. Require MLO for UHR connections to avoid
otherwise needed complexity such as not enabling any
feature that would require tracking critical updates.
Link: https://patch.msgid.link/20260529102644.43817ce87042.If4562ae9c5ca83339b397d9a344b68631cb17c4a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
During beacon processing, the parser is always called with
a BSS to find the correct multi-BSSID profile (if any) and
therefore never attempts to parse a multi-link element.
This means the code to handle cross-link CSA can effectively
never do anything.
Fix this by parsing the multi-link element in the regular
parser as well.
Fixes: 7ef8f6821d ("wifi: mac80211: mlme: handle cross-link CSA")
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Link: https://patch.msgid.link/20260529102644.2a74b2659f50.I8f9454bf5e05c419a9b1eb23ecad302a6bf63fbb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
A previous commit changed mac80211 to no longer make wrong
calls to cfg80211_defragment_element() with the element
pointing outside of the buffer. Additionally, harden this
function itself against that and always return -EINVAL in
case the element isn't inside the source buffer.
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Link: https://patch.msgid.link/20260529102644.198945754054.I5ae8fdebf9008abc6e15d0b0f10c3a7b73d02eab@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When connected to a non-transmitting BSS of multiple BSSID
set with EMA, the correct profile for the connection isn't
always present in the beacon. Indicate this in the parser
and use the information to not check everything in beacon
processing, since the information might not be correct if
taken only from the transmitted BSS.
Link: https://patch.msgid.link/20260529102644.97527a7dfd7b.Iecd0ef578b85a5a0057538cfff5fdff41d19b7ea@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There are multiple cases where interface links are removed
and the station links need to be removed with them, e.g.
in mlme.c we have both received and transmitted multi-link
reconfiguration, doing the two things in different order,
the former deleting STA links when the vif link change may
still fail.
It's also not clear that userspace (hostapd) couldn't, at
least in theory, remove a link from an interface without
removing the station links first, or even leave stations
that aren't MLO-capable, using that link.
Unify this code into ieee80211_vif_update_links() so that
it always happens, always happens in the right order and
is transactional (i.e. failures are handled correctly.)
Link: https://patch.msgid.link/20260529102644.c352f73a4658.I7219a5d72dab2abcecea9b5c52e7eb7a50e68d9b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Introduce basic rate encoding/decoding for S1G stas such that the
usermode rx reporting is relevant as it currently uses VHT calculations
which are obviously wildy different to S1G. Sample iw output (with the
associated iw patches applied):
Connected to 0c:bf:74:00:21:c4 (on wlan0)
SSID: wifi_halow
freq: 923.500
RX: 7325230 bytes (4756 packets)
TX: 190044 bytes (2238 packets)
signal: -38 dBm
rx bitrate: 43.3 MBit/s S1G-MCS 9 8MHz short GI S1G-NSS 1
tx bitrate: 43.3 MBit/s S1G-MCS 9 8MHz short GI S1G-NSS 1
bss flags:
dtim period: 1
beacon int: 100
Signed-off-by: Lachlan Hodges <lachlan.hodges@morsemicro.com>
Link: https://patch.msgid.link/20260602062224.1792985-1-lachlan.hodges@morsemicro.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
qtnf_pcie_topaz_probe() currently calls devm_request_irq() and only then
disable_irq(). request_irq() installs the action in the irq core
immediately, so qtnf_pcie_topaz_interrupt() can run before the Topaz
private IRQ consumers are initialized, if the hardware misbehaves.
This window is reachable on a running system as soon as probe has
successfully registered pdev->irq but before qtnf_pcie_init_shm_ipc()
sets shm_ipc_ep_in/out.irq_handler. If an interrupt is delivered in
this interval, qtnf_pcie_topaz_interrupt() calls
qtnf_shm_ipc_irq_handler() for shm_ipc_ep_in/out while their irq_handler
callbacks are still unset, so the driver can observe an early IRQ
before its IPC consumer state is ready.
The issue was found on Linux v6.18.21 by our static analysis tool while
scanning request_irq()/disable_irq() registration-order bugs in
wireless PCIe drivers, and then manually reviewed.
Request the IRQ with IRQF_NO_AUTOEN instead and keep the existing
enable_irq() in qtnf_post_init_ep() as the point where interrupts
become visible. This closes the early-IRQ window while preserving the
intended bring-up order.
Signed-off-by: Runyu Xiao <runyu.xiao@seu.edu.cn>
Link: https://patch.msgid.link/20260531145435.701703-1-runyu.xiao@seu.edu.cn
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There are no issues with the PERR processing itself; however, to maintain
consistency with the previous PREQ/PREP code modifications, I will create a
new mesh_path_parse_error_frame() function to separately implement the
frame format validation and the "not supported" check.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Link: https://patch.msgid.link/20260529230952.124754-6-masashi.honma@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When the AF flag is enabled, hwmp_prep_frame_process() overreads orig_addr
by 2 bytes. Since this occurs within the socket buffer, it does not read
across memory boundaries and therefore poses no security risk; however, we
will fix it as a precaution.
In this fix, a new function mesh_path_parse_reply_frame() is established to
separate the implementation of frame format validation and the check for
unsupported features. This is intended to facilitate future work when
implementing the currently unsupported parts.
Assisted-by: Claude:Sonnet 4.6
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Link: https://patch.msgid.link/20260529230952.124754-5-masashi.honma@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When the AF flag is enabled, hwmp_preq_frame_process() overreads
target_addr by 2 bytes. Since this occurs within the socket buffer, it does
not read across memory boundaries and therefore poses no security risk;
however, we will fix it as a precaution.
In this fix, a new function mesh_path_parse_request_frame() is established
to separate the implementation of frame format validation and the check for
unsupported features. This is intended to facilitate future work when
implementing the currently unsupported parts.
Assisted-by: Claude:Sonnet 4.6
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Link: https://patch.msgid.link/20260529230952.124754-4-masashi.honma@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The existing PERR_IE_* macros access HWMP PERR frame fields via hardcoded
byte offsets. Each PERR destination entry contains an optional 6-byte AE
(Address Extension) address followed by a reason code, making offset-based
access error-prone.
Introduce typed packed C structs to represent the PERR frame layout:
- ieee80211_mesh_hwmp_perr: top-level frame containing TTL and
destination count
- ieee80211_mesh_hwmp_perr_dst: per-destination entry with optional AE
address and variable-position reason code
Add ieee80211_mesh_hwmp_perr_get_rcode() to locate the reason code in
each destination entry depending on whether the AE flag is set.
This refactoring makes the PERR processing code consistent with the
struct-based approach adopted for PREQ and PREP in preceding patches.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Link: https://patch.msgid.link/20260529230952.124754-3-masashi.honma@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The existing PREP_IE_* macros access HWMP PREP frame fields via hardcoded
byte offsets. When the AE (Address Extension) flag is set, an additional
6 bytes appear mid-frame, making the offset arithmetic error-prone.
Introduce typed packed C structs to represent the PREP frame layout:
- ieee80211_mesh_hwmp_prep_top: fixed fields before the optional AE
address
- ieee80211_mesh_hwmp_prep_bottom: fields after the optional AE address
Add ieee80211_mesh_hwmp_prep_get_bottom() to locate the bottom struct
correctly based on whether the AE flag is set.
This preparatory refactoring is needed to fix a 2-byte overread of
orig_addr in hwmp_prep_frame_process() when AE is enabled, which is
addressed in a subsequent patch.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Link: https://patch.msgid.link/20260529230952.124754-2-masashi.honma@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The existing PREQ_IE_* macros access HWMP PREQ frame fields via hardcoded
byte offsets. When the AE (Address Extension) flag is set, an additional
6 bytes appear mid-frame, and the macros handle this with conditional
arithmetic (e.g., AE_F_SET(x) ? x + N+6 : x + N). This approach
obscures the frame layout and is prone to miscalculation.
Introduce typed packed C structs to represent the PREQ frame layout:
- ieee80211_mesh_hwmp_preq_top: fixed fields before the optional AE
address
- ieee80211_mesh_hwmp_preq_bottom: fields after the optional AE address
- ieee80211_mesh_hwmp_preq_target: per-target fields
Add ieee80211_mesh_hwmp_preq_get_bottom() to locate the bottom struct
correctly based on whether the AE flag is set.
This preparatory refactoring is needed to fix a 2-byte overread of
target_addr in hwmp_preq_frame_process() when AE is enabled, which is
addressed in a subsequent patch.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Link: https://patch.msgid.link/20260529230952.124754-1-masashi.honma@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Remove WIPHY_FLAG_SUPPORTS_5_10_MHZ and 5/10 MHz channel
width support. We contemplated this back in early 2023
and didn't do it yet, but nobody stepped up to maintain
it.
It's already _mostly_ dead code since it can really only
be used for AP and maybe IBSS and monitor, but not on a
client since there's no way to scan (and hasn't been in
a very long time, if ever), so the only thing that ever
could really happen with it was run syzbot and trip over
assumptions in the code.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Lachlan Hodges <lachlan.hodges@morsemicro.com>
Link: https://patch.msgid.link/20260529084502.080c5885f0b7.I77cc94485b523c3c006005b9233db13cd4e077b3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When a non-MLD station associates with an MLD AP, it does so on a
specific link. However, sta_set_sinfo() never sets mlo_params_valid,
so nl80211 never emits NL80211_ATTR_MLO_LINK_ID in get_station /
dump_station responses. Userspace has no way to determine which link
a non-MLD STA is associated on.
Set mlo_params_valid to 1 and assoc_link_id to sta->deflink.link_id,
when valid_links is set.
Also set the mld_addr copy only for MLD STAs, so that non-MLD STAs
get a zeroed mld_addr as documented.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/20260528105042.835284-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Expose the device's Serial Number (SN) and UUID from EFUSE via two
read-only sysfs attributes, `serial_number` and `uuid`, on the ieee80211
phy device under the `rtw89_usb` attribute group.
This hardware identification information is essential for user-space
applications to uniquely identify, track, and manage specific Wi-Fi
adapters. For example, in automated factory provisioning or device
management systems, user-space tools rely on the EFUSE serial number and
UUID to bind configurations to specific physical adapters. Currently,
standard wireless APIs do not expose this low-level hardware
information, making these sysfs nodes the only viable solution for
user space to extract this data.
The attributes are gated behind a new RTW89_QUIRK_HW_INFO_SYSFS quirk,
enabled only for the VID 0x28de / PID 0x2432 device via the
dev_id_quirks field in rtw89_driver_info.
Example usage from user-space:
$ cat /sys/class/ieee80211/phy0/rtw89_usb/serial_number
3642000123
$ cat /sys/class/ieee80211/phy0/rtw89_usb/uuid
aaec2b7c-0a55-4727-8de0-b30febccbbaa
Cc: Elliot Saba <sabae@valvesoftware.com>
Cc: Charles Lohr <charlesl@valvesoftware.com>
Signed-off-by: Johnson Tsai <wenjie.tsai@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260529075032.16807-3-pkshih@realtek.com
Add a dev_id_quirks field to rtw89_driver_info so that per-device
(VID/PID) quirks can be expressed independently of chip-level
default_quirks. Apply the bitmap in rtw89_alloc_ieee80211_hw() so
both USB and PCI probes benefit automatically.
All existing driver_info structs initialize dev_id_quirks to 0;
no behavior change.
Signed-off-by: Johnson Tsai <wenjie.tsai@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260529075032.16807-2-pkshih@realtek.com
Skip the ACPI capability check for all USB devices by default,
allowing them to use their default configurations.
For USB dongles, customers will manage their own compliance and
certification. This initial patch focuses on the generic USB skip
infrastructure; specific customer certifications and localized
configurations will be handled by quirks afterward.
Signed-off-by: David Lee <sc.lee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260525082636.31105-1-pkshih@realtek.com
