linux.git/net/wireless/scan.c, branch v6.9

wifi: cfg80211: allow cfg80211_defragment_element() without output

2024-03-04T13:33:51+00:00

If we just want to determine the length of the fragmented
data, we basically need the same logic, and really we want
it to be _literally_ the same logic, so it cannot be out
of sync in any way.

Allow calling cfg80211_defragment_element() without an output
buffer, where it then just returns the required output size.

Also add this to the tests, just to exercise it, using the
pre-calculated length to really do the defragmentation, which
checks that this is sufficient.

Reviewed-by: Miriam Rachel Korenblit 
Reviewed-by: Benjamin Berg 
Link: https://msgid.link/20240228095718.6d6565b9e3f2.Ib441903f4b8644ba04b1c766f90580ee6f54fc66@changeid
Signed-off-by: Johannes Berg

wifi: cfg80211: expose cfg80211_iter_rnr() to drivers

2024-03-04T13:33:49+00:00

In mac80211 we'll need to look at reduced neighbor report
entries for channel switch purposes, so export the iteration
function to make that simpler.

Reviewed-by: Miriam Rachel Korenblit 
Link: https://msgid.link/20240228095718.0954809964ef.I53e95c017aa71f14e8d1057afbbc75982ddb43df@changeid
Signed-off-by: Johannes Berg

wifi: cfg80211: use ML element parsing helpers

2024-02-21T14:19:04+00:00

Use the existing ML element parsing helpers and add a new
one for this (ieee80211_mle_get_mld_id).

Signed-off-by: Johannes Berg 
Signed-off-by: Miri Korenblit 
Link: https://msgid.link/20240216135047.4da47b1f035b.I437a5570ac456449facb0b147851ef24a1e473c2@changeid
Signed-off-by: Johannes Berg

wifi: cfg80211: refactor RNR parsing

2024-02-21T14:19:04+00:00

We'll need more parsing of the reduced neighbor report element,
and we already have two places doing pretty much the same.
Combine by refactoring the parsing into a separate function
with a callback for each item found.

Signed-off-by: Johannes Berg 
Reviewed-by: Benjamin Berg 
Signed-off-by: Miri Korenblit 
Link: https://msgid.link/20240216135047.cfff14b692fc.Ibe25be88a769eab29ebb17b9d19af666df6a2227@changeid
Signed-off-by: Johannes Berg

wifi: cfg80211: clean up cfg80211_inform_bss_frame_data()

2024-02-21T14:19:04+00:00

Make cfg80211_inform_bss_frame_data() call the existing
cfg80211_inform_bss_data() after parsing the frame in the
appropriate way, so we have less code duplication. This
required introducing a new CFG80211_BSS_FTYPE_S1G_BEACON,
but that can be used by other drivers as well.

Signed-off-by: Johannes Berg 
Signed-off-by: Miri Korenblit 
Link: https://msgid.link/20240216135047.874aed1eff5f.Ib7d88d126eec50c64763251a78cb432bb5df14df@changeid
Signed-off-by: Johannes Berg

wifi: cfg80211: remove cfg80211_inform_single_bss_frame_data()

2024-02-21T14:19:04+00:00

This function pretty much does what cfg80211_inform_single_bss_data()
already does, except on a frame data. But we can call the other one,
after populating the inform_data more completely, so we don't need to
do everything twice.

This also uncovered a few bugs:
 * the 6 GHz power type checks were only done in this function, move
   (and rename from 'uhb') those;
 * the chains/chain_signal information wasn't used in the latter,
   add that

Signed-off-by: Johannes Berg 
Signed-off-by: Miri Korenblit 
Link: https://msgid.link/20240216135047.f3f864f94c78.I2192adb32ab10713e71f395a9d203386264f6ed5@changeid
Signed-off-by: Johannes Berg

wifi: cfg80211: set correct param change count in ML element

2024-02-21T14:19:03+00:00

The ML element generation code to create a BSS entry from a per-STA
profile was not overwriting the BSS parameter change count. This meant
that the incorrect parameter change count would be reported within the
multi-link element.

Fix this by returning the BSS parameter change count from the function
and placing it into the ML element. The returned tbtt info was never
used, so just drop that to simplify the code.

Fixes: 5f478adf1f99 ("wifi: cfg80211: generate an ML element for per-STA profiles")
Signed-off-by: Benjamin Berg 
Reviewed-by: Johannes Berg 
Signed-off-by: Miri Korenblit 
Link: https://msgid.link/20240216135047.f2a507634692.I06b122c7a319a38b4e970f5e0bd3d3ef9cac4cbe@changeid
Signed-off-by: Johannes Berg

wifi: cfg80211: rename UHB to 6 GHz

2024-02-12T20:22:46+00:00

UHB stands for "Ultra High Band", but this term doesn't really
exist in the spec. Rename all occurrences to "6 GHz", but keep
a few defines for userspace API compatibility.

Link: https://msgid.link/20240206164849.c9cfb9400839.I153db3b951934a1d84409c17fbe1f1d1782543fa@changeid
Signed-off-by: Johannes Berg

Merge wireless into wireless-next

2024-02-08T08:58:25+00:00

There are some changes coming to wireless-next that will
otherwise cause conflicts, pull wireless in first to be
able to resolve that when applying the individual changes
rather than having to do merge resolution later.

Signed-off-by: Johannes Berg

wifi: cfg80211: fix kunit exports

2024-02-04T10:03:39+00:00

These can only be exported if cfg80211's kunit is enabled,
since they're otherwise static. kunit itself can be enabled
even if cfg80211's kunit isn't. Fix that by using the right
macro.

Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-kbuild-all/202402040534.6AEKtZ7Y-lkp@intel.com/
Fixes: 45d43937a44c ("wifi: cfg80211: add a kunit test for 6 GHz colocated AP parsing")
Signed-off-by: Johannes Berg