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wifi: cfg80211: allow devices to advertise extended MLD capa/ops

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For UHR, multi-link power-management capability lives there, and
so it's needed that hostapd knows what to advertise, and clients
should have it shown to userspace for information.

Repurpose the existing NL80211_ATTR_ASSOC_MLD_EXT_CAPA_OPS by
renaming it to NL80211_ATTR_EXT_MLD_CAPA_AND_OPS (with a define
for compatibility) and advertise the capabilities.

We can also later use the value, if needed, to set per-station
capabilities on STAs added to AP interfaces.

Link: https://patch.msgid.link/20260428110915.e808e70feed6.I378a7c017bfc1ebb072fa8d5d1db2ac9b45596c9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2026-04-28 11:06:59 +02:00
parent 793ccb7432
commit fb19b4d67d
3 changed files with 23 additions and 12 deletions
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15
include/uapi/linux/nl80211.h
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@@ -3004,11 +3004,13 @@ enum nl80211_commands {
* @NL80211_ATTR_EPCS: Flag attribute indicating that EPCS is enabled for a
* station interface.
*
* @NL80211_ATTR_ASSOC_MLD_EXT_CAPA_OPS: Extended MLD capabilities and
* operations that userspace implements to use during association/ML
* link reconfig, currently only "BTM MLD Recommendation For Multiple
* APs Support". Drivers may set additional flags that they support
* in the kernel or device.
* @NL80211_ATTR_EXT_MLD_CAPA_AND_OPS: Extended MLD capabilities and operations.
* For association and link reconfiguration, indicates extra capabilities
* that userspace implements, currently only "BTM MLD Recommendation For
* Multiple APs Support".
* For wiphy information, additional flags that drivers will set, but
* this is informational only for userspace (it's not expected to set
* these.)
*
* @NL80211_ATTR_WIPHY_RADIO_INDEX: (int) Integer attribute denoting the index
* of the radio in interest. Internally a value of -1 is used to
@@ -3715,7 +3717,7 @@ enum nl80211_attrs {
NL80211_ATTR_MLO_RECONF_REM_LINKS,
NL80211_ATTR_EPCS,
NL80211_ATTR_ASSOC_MLD_EXT_CAPA_OPS,
NL80211_ATTR_EXT_MLD_CAPA_AND_OPS,
NL80211_ATTR_WIPHY_RADIO_INDEX,
@@ -3769,6 +3771,7 @@ enum nl80211_attrs {
#define NL80211_ATTR_SAE_DATA NL80211_ATTR_AUTH_DATA
#define NL80211_ATTR_CSA_C_OFF_BEACON NL80211_ATTR_CNTDWN_OFFS_BEACON
#define NL80211_ATTR_CSA_C_OFF_PRESP NL80211_ATTR_CNTDWN_OFFS_PRESP
#define NL80211_ATTR_ASSOC_MLD_EXT_CAPA_OPS NL80211_ATTR_EXT_MLD_CAPA_AND_OPS
/*
* Allow user space programs to use #ifdef on new attributes by defining them