linux-stable.git/net/wireless/scan.c, branch v6.0

wifi: cfg80211: do some rework towards MLO link APIs

2022-06-20T10:54:58+00:00

In order to support multi-link operation with multiple links,
start adding some APIs. The notable addition here is to have
the link ID in a new nl80211 attribute, that will be used to
differentiate the links in many nl80211 operations.

So far, this patch adds the netlink NL80211_ATTR_MLO_LINK_ID
attribute (as well as the NL80211_ATTR_MLO_LINKS attribute)
and plugs it through the system in some places, checking the
validity etc. along with other infrastructure needed for it.

For now, I've decided to include only the over-the-air link
ID in the API. I know we discussed that we eventually need to
have to have other ways of identifying a link, but for local
AP mode and auth/assoc commands as well as set_key etc. we'll
use the OTA ID.

Also included in this patch is some refactoring of the data
structures in struct wireless_dev, splitting for the first
time the data into type dependent pieces, to make reasoning
about these things easier.

Signed-off-by: Johannes Berg

cfg80211: retrieve S1G operating channel number

2022-05-04T09:33:52+00:00

When retrieving the S1G channel number from IEs, we should retrieve
the operating channel instead of the primary channel. The S1G operation
element specifies the main channel of operation as the oper channel,
unlike for HT and HE which specify their main channel of operation as
the primary channel.

Signed-off-by: Kieran Frewen 
Signed-off-by: Bassem Dawood 
Link: https://lore.kernel.org/r/20220420041321.3788789-1-kieran.frewen@morsemicro.com
Signed-off-by: Johannes Berg

cfg80211: hold bss_lock while updating nontrans_list

2022-04-11T09:55:36+00:00

Synchronize additions to nontrans_list of transmitting BSS with
bss_lock to avoid races. Also when cfg80211_add_nontrans_list() fails
__cfg80211_unlink_bss() needs bss_lock to be held (has lockdep assert
on bss_lock). So protect the whole block with bss_lock to avoid
races and warnings. Found during code review.

Fixes: 0b8fb8235be8 ("cfg80211: Parsing of Multiple BSSID information in scanning")
Signed-off-by: Rameshkumar Sundaram 
Link: https://lore.kernel.org/r/1649668071-9370-1-git-send-email-quic_ramess@quicinc.com
Signed-off-by: Johannes Berg

cfg80211: don't add non transmitted BSS to 6GHz scanned channels

2022-02-04T15:24:41+00:00

When adding 6GHz channels to scan request based on reported
co-located APs, don't add channels that have only APs with
"non-transmitted" BSSes if they only match the wildcard SSID since
they will be found by probing the "transmitted" BSS.

Signed-off-by: Avraham Stern 
Signed-off-by: Luca Coelho 
Link: https://lore.kernel.org/r/iwlwifi.20220202104617.f6ddf099f934.I231e55885d3644f292d00dfe0f42653269f2559e@changeid
Signed-off-by: Johannes Berg

cfg80211: refactor cfg80211_get_ies_channel_number()

2021-12-20T09:57:19+00:00

Now that this is no longer part of the bigger function,
we can get rid of the channel_num variable. Also change
the function to use the struct element helpers, instead
of open-coding the element handling.

Link: https://lore.kernel.org/r/20211202130913.a0adf67a9319.I6db0340a34fff18d78e9cd512f4abf855da4e43a@changeid
Signed-off-by: Johannes Berg

cfg80211: Use the HE operation IE to determine a 6GHz BSS channel

2021-12-20T09:38:32+00:00

A non-collocated AP whose primary channel is not a PSC channel
may transmit a duplicated beacon on the corresponding PSC channel
in which it would indicate its true primary channel.
Use this inforamtion contained in the HE operation IE to determine
the primary channel of the AP.
In case of invalid infomration ignore it and use the channel
the frame was received on.

Signed-off-by: Ayala Beker 
Signed-off-by: Luca Coelho 
Link: https://lore.kernel.org/r/iwlwifi.20211202143322.71eb2176e54e.I130f678e4aa390973ab39d838bbfe7b2d54bff8e@changeid
Signed-off-by: Johannes Berg

cfg80211: use ieee80211_bss_get_elem() instead of _get_ie()

2021-11-28T20:53:04+00:00

Use the structured helper for finding an element instead of
the unstructured ieee80211_bss_get_ie().

Link: https://lore.kernel.org/r/20210930131130.e94709f341c3.I4ddb7fcb40efca27987deda7f9a144a5702ebfae@changeid
Signed-off-by: Johannes Berg

cfg80211: delete redundant free code

2021-11-26T10:49:17+00:00

When kzalloc failed and rdev->sacn_req or rdev->scan_msg is null, pass a
null pointer to kfree is redundant, delete it and return directly.

Signed-off-by: liuguoqiang 
Link: https://lore.kernel.org/r/20211115092139.24407-1-liuguoqiang@uniontech.com
[remove now unused creq = NULL assigment]
Signed-off-by: Johannes Berg

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-10-28T17:43:58+00:00

include/net/sock.h
  7b50ecfcc6cd ("net: Rename ->stream_memory_read to ->sock_is_readable")
  4c1e34c0dbff ("vsock: Enable y2038 safe timeval for timeout")

drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
  0daa55d033b0 ("octeontx2-af: cn10k: debugfs for dumping LMTST map table")
  e77bcdd1f639 ("octeontx2-af: Display all enabled PF VF rsrc_alloc entries.")

Adjacent code addition in both cases, keep both.

Signed-off-by: Jakub Kicinski

cfg80211: separate get channel number from ies

2021-10-21T15:25:16+00:00

Get channel number from ies is a common logic, so separate it to a new
function, which could also be used by lower driver.

Signed-off-by: Wen Gong 
Link: https://lore.kernel.org/r/20210930081533.4898-1-wgong@codeaurora.org
Signed-off-by: Johannes Berg