linux/drivers/net/wireless, branch v6.8

wifi: iwlwifi: mvm: fix the TXF mapping for BZ devices

2024-02-21T13:42:00Z

Those devices' fifos are numbered differently. Because of that, we were looking at the size of the VO fifo size to determine the size of the A-MSDU which led to a lower throughput. Note that for those devices the only user of the AC -> fifo mapping is the size limitation of A-MSDU. Signed-off-by: Emmanuel Grumbach Signed-off-by: Miri Korenblit Link: https://msgid.link/20240218194912.da336ca2fa0a.I73e44d5fc474ebb6f275b9008950e59c012f33b2@changeid Signed-off-by: Johannes Berg

wifi: iwlwifi: mvm: ensure offloading TID queue exists

2024-02-21T13:40:49Z

The resume code path assumes that the TX queue for the offloading TID has been configured. At resume time it then tries to sync the write pointer as it may have been updated by the firmware. In the unusual event that no packets have been send on TID 0, the queue will not have been allocated and this causes a crash. Fix this by ensuring the queue exist at suspend time. Signed-off-by: Benjamin Berg Signed-off-by: Miri Korenblit Link: https://msgid.link/20240218194912.6632e6dc7b35.Ie6e6a7488c9c7d4529f13d48f752b5439d8ac3c4@changeid Signed-off-by: Johannes Berg

wifi: iwlwifi: mvm: fix a crash when we run out of stations

2024-02-08T13:55:39Z

A DoS tool that injects loads of authentication frames made our AP crash. The iwl_mvm_is_dup() function couldn't find the per-queue dup_data which was not allocated. The root cause for that is that we ran out of stations in the firmware and we didn't really add the station to the firmware, yet we didn't return an error to mac80211. Mac80211 was thinking that we have the station and because of that, sta_info::uploaded was set to 1. This allowed ieee80211_find_sta_by_ifaddr() to return a valid station object, but that ieee80211_sta didn't have any iwl_mvm_sta object initialized and that caused the crash mentioned earlier when we got Rx on that station. Cc: stable@vger.kernel.org Fixes: 57974a55d995 ("wifi: iwlwifi: mvm: refactor iwl_mvm_mac_sta_state_common()") Signed-off-by: Emmanuel Grumbach Signed-off-by: Miri Korenblit Link: https://msgid.link/20240206175739.1f76c44b2486.I6a00955e2842f15f0a089db2f834adb9d10fbe35@changeid Signed-off-by: Johannes Berg

wifi: iwlwifi: uninitialized variable in iwl_acpi_get_ppag_table()

2024-02-08T12:49:37Z

This is an error path and Smatch complains that "tbl_rev" is uninitialized on this path. All the other functions follow this same patter where they set the error code and goto out_free so that's probably what was intended here as well. Fixes: e8e10a37c51c ("iwlwifi: acpi: move ppag code from mvm to fw/acpi") Signed-off-by: Dan Carpenter Link: https://msgid.link/09900c01-6540-4a32-9451-563da0029cb6@moroto.mountain Signed-off-by: Johannes Berg

wifi: iwlwifi: Fix some error codes

2024-02-08T12:49:37Z

This saves the error as PTR_ERR(wifi_pkg). The problem is that "wifi_pkg" is a valid pointer, not an error pointer. Set the error code to -EINVAL instead. Fixes: 2a8084147bff ("iwlwifi: acpi: support reading and storing WRDS revision 1 and 2") Signed-off-by: Dan Carpenter Link: https://msgid.link/9620bb77-2d7c-4d76-b255-ad824ebf8e35@moroto.mountain Signed-off-by: Johannes Berg

wifi: iwlwifi: clear link_id in time_event

2024-02-08T12:26:07Z

Before sending a SESSION PROTECTION cmd the driver checks if the link_id indicated in the time event (and for which the cmd will be sent) is valid and exists. Clear the te_data::link_id when FW notifies that a session protection ended, so the check will actually fail when it should. Fixes: 135065837310 ("wifi: iwlwifi: support link_id in SESSION_PROTECTION cmd") Signed-off-by: Miri Korenblit Link: https://msgid.link/20240204235836.c64a6b3606c2.I35cdc08e8a3be282563163690f8ca3edb51a3854@changeid Signed-off-by: Johannes Berg

wifi: iwlwifi: mvm: use correct address 3 in A-MSDU

2024-02-08T12:24:10Z

As described in IEEE sta 802.11-2020, table 9-30 (Address field contents), A-MSDU address 3 should contain the BSSID address. In TX_CMD we copy the MAC header from skb, and skb address 3 holds the destination address, but it may not be identical to the BSSID. Using the wrong destination address appears to work with (most) receivers without MLO, but in MLO some devices are checking for it carefully, perhaps as a consequence of link to MLD address translation. Replace address 3 in the TX_CMD MAC header with the correct address while retaining the skb address 3 unchanged. This ensures that skb address 3 will be utilized later for constructing the A-MSDU subframes. Note that we fill in the MLD address, but the firmware will do the necessary translation to link address after encryption. Signed-off-by: Daniel Gabay Signed-off-by: Miri Korenblit Link: https://msgid.link/20240204235836.4583a1bf9188.I3f8e7892bdf8f86b4daa28453771a8c9817b2416@changeid Signed-off-by: Johannes Berg

wifi: mt76: mt7996: fix fortify warning

2024-02-05T18:00:45Z

Copy cck and ofdm separately in order to avoid __read_overflow2_field warning. Fixes: f75e4779d215 ("wifi: mt76: mt7996: add txpower setting support") Signed-off-by: Felix Fietkau Signed-off-by: Kalle Valo Link: https://msgid.link/20240203132446.54790-1-nbd@nbd.name

wifi: brcmfmac: Adjust n_channels usage for __counted_by

2024-02-02T16:40:28Z

After commit e3eac9f32ec0 ("wifi: cfg80211: Annotate struct cfg80211_scan_request with __counted_by"), the compiler may enforce dynamic array indexing of req->channels to stay below n_channels. As a result, n_channels needs to be increased _before_ accessing the newly added array index. Increment it first, then use "i" for the prior index. Solves this warning in the coming GCC that has __counted_by support: ../drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c: In function 'brcmf_internal_escan_add_info': ../drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:3783:46: warning: operation on 'req-> n_channels' may be undefined [-Wsequence-point] 3783 | req->channels[req->n_channels++] = chan; | ~~~~~~~~~~~~~~~^~ Fixes: e3eac9f32ec0 ("wifi: cfg80211: Annotate struct cfg80211_scan_request with __counted_by") Cc: Arend van Spriel Cc: Franky Lin Cc: Hante Meuleman Cc: Kalle Valo Cc: Chi-hsien Lin Cc: Ian Lin Cc: Johannes Berg Cc: Wright Feng Cc: Hector Martin Cc: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list.pdl@broadcom.com Signed-off-by: Kees Cook Reviewed-by: Hans de Goede Reviewed-by: Linus Walleij Reviewed-by: Gustavo A. R. Silva Signed-off-by: Kalle Valo Link: https://msgid.link/20240126223150.work.548-kees@kernel.org

wifi: iwlwifi: do not announce EPCS support

2024-02-02T13:35:45Z

mac80211 does not have proper support for EPCS currently as that would require changing the ECDA parameters if EPCS (Emergency Preparedness Communications Service) is in use. As such, do not announce support for it in the capabilities. Signed-off-by: Benjamin Berg Signed-off-by: Miri Korenblit Link: https://msgid.link/20240201155157.59d71656addc.Idde91b3018239c49fc6ed231b411d05354fb9fb1@changeid Signed-off-by: Johannes Berg