[PATCH wireless-next v6 0/1] wifi: cfg80211/mac80211: add support to handle incumbent signal detected event

[Amith A <amith.a@oss.qualcomm.com>]

This patch series adds support to handle incumbent signal interference
detected event in 6 GHz band. When an incumbent signal is detected by an
AP/mesh interface operating in 6 GHz band, the AP/mesh is expected to
vacate the channels affected by it.

Driver is expected to call the newly introduced API with required
information to notify the interference detection. This information will be
ultimately sent to user space via NL802111 command. User space is expected
to process it and take further action - vacate the channel, or reduce the
bandwidth.

Aditya Kumar Singh (1):
  wifi: mac80211_hwsim: add incumbent signal interference detection
    support
---
Changes in v6:
 - Simplified chanctx iterator plumbing, tightened input length validation
   replaced strsep/kstrtou32 parsing with sscanf and collapsed local
   variables to reduce complexity.
 - Removed patch "wifi: cfg80211: add support to handle incumbent
   signal detected event from mac80211/driver" from the series as it
   got accepted.
Changes in v5:
 - Made chandef const in cfg80211_incumbent_signal_notify()
 - Removed mac80211 wrapper ieee80211_incumbent_signal_detected(). 
   Driver/hwsim calls cfg80211 notify directly.
 - In mac80211_hwsim, switched debugfs to custom fops with .write that
   accepts “freq_mhz bitmap”. Now 6 GHz chanctx is selected by primary
   20 MHz center.

Changes in v4:
 - Restored gfp_t in cfg80211_incumbent_signal_notify().
 - Dropped incumbt_sig_intf_bmap from ieee80211_chanctx_conf and passed
   bitmap directly.
 - Updated trace/call path: api_incumbent_signal_detected() to take bitmap
 - Simplified hwsim: removed helper struct.

Changes in v3:
 - Removed the workqueue mechanism in ieee80211_incumbent_signal_detected(),
   exported the cfg80211_ function that sends the NL80211 command and called
   it from ieee80211_incumbent_signal_detected() directly.
 - Renamed nl80211_incumbent_signal_notify() to
   cfg80211_incumbent_signal_notify() and removed the gfp argument from it.

Changes in v2:
 - Updated the kernel doc of NL80211_ATTR_INCUMBENT_SIGNAL_INTERFERENCE_BITMAP
   to include details of how it interacts with puncturing.
 - Rebased on ToT
---
 drivers/net/wireless/virtual/mac80211_hwsim.c | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)


base-commit: 5d048bbed1bb2bbef612dad0bb9c177c434e63a4
-- 
2.34.1