linux.git/drivers/net/wireless/mediatek, branch v6.11 Linux kernel source tree wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change 2024-08-13T09:48:56+00:00 Bert Karwatzki spasswolf@web.de 2024-08-12T10:45:41+00:00 479ffee68d59c599f8aed8fa2dcc8e13e7bd13c3 When disabling wifi mt7921_ipv6_addr_change() is called as a notifier. At this point mvif->phy is already NULL so we cannot use it here. Signed-off-by: Bert Karwatzki <spasswolf@web.de> Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://patch.msgid.link/20240812104542.80760-1-spasswolf@web.de 
When disabling wifi mt7921_ipv6_addr_change() is called as a notifier.
At this point mvif->phy is already NULL so we cannot use it here.

Signed-off-by: Bert Karwatzki <spasswolf@web.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240812104542.80760-1-spasswolf@web.de
wifi: mt76: mt7921: fix null pointer access in mt792x_mac_link_bss_remove 2024-07-26T10:34:20+00:00 Sean Wang sean.wang@mediatek.com 2024-07-18T23:46:33+00:00 6557a28f3e3a54cff4f0dcdd1dfa649b26557ab3 Fix null pointer access in mt792x_mac_link_bss_remove. To prevent null pointer access, we should assign the vif to bss_conf in mt7921_add_interface. This ensures that subsequent operations on the BSS can properly reference the correct vif. [ T843] Call Trace: [ T843] <TASK> [ T843] ? __die+0x1e/0x60 [ T843] ? page_fault_oops+0x157/0x450 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? search_bpf_extables+0x5a/0x80 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? exc_page_fault+0x2bb/0x670 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? lock_timer_base+0x71/0x90 [ T843] ? asm_exc_page_fault+0x26/0x30 [ T843] ? mt792x_mac_link_bss_remove+0x24/0x110 [mt792x_lib] [ T843] ? mt792x_remove_interface+0x6e/0x90 [mt792x_lib] [ T843] ? ieee80211_do_stop+0x507/0x7e0 [mac80211] [ T843] ? ieee80211_stop+0x53/0x190 [mac80211] [ T843] ? __dev_close_many+0xa5/0x120 [ T843] ? __dev_change_flags+0x18c/0x220 [ T843] ? dev_change_flags+0x21/0x60 [ T843] ? do_setlink+0xdf9/0x11d0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? security_sock_rcv_skb+0x33/0x50 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? __nla_validate_parse+0x61/0xd10 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? genl_done+0x53/0x80 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? netlink_dump+0x357/0x410 [ T843] ? __rtnl_newlink+0x5d6/0x980 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? genl_family_rcv_msg_dumpit+0xdf/0xf0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? __kmalloc_cache_noprof+0x44/0x210 [ T843] ? rtnl_newlink+0x42/0x60 [ T843] ? rtnetlink_rcv_msg+0x152/0x3f0 [ T843] ? mptcp_pm_nl_dump_addr+0x180/0x180 [ T843] ? rtnl_calcit.isra.0+0x130/0x130 [ T843] ? netlink_rcv_skb+0x56/0x100 [ T843] ? netlink_unicast+0x199/0x290 [ T843] ? netlink_sendmsg+0x21d/0x490 [ T843] ? __sock_sendmsg+0x78/0x80 [ T843] ? ____sys_sendmsg+0x23f/0x2e0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? copy_msghdr_from_user+0x68/0xa0 [ T843] ? ___sys_sendmsg+0x81/0xd0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? crng_fast_key_erasure+0xbc/0xf0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? get_random_bytes_user+0x126/0x140 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? __fdget+0xb1/0xe0 [ T843] ? __sys_sendmsg+0x56/0xa0 [ T843] ? srso_alias_return_thunk+0x5/0xfbef5 [ T843] ? do_syscall_64+0x5f/0x170 [ T843] ? entry_SYSCALL_64_after_hwframe+0x55/0x5d [ T843] </TASK> Fixes: 1541d63c5fe2 ("wifi: mt76: mt7925: add mt7925_mac_link_bss_remove to remove per-link BSS") Reported-by: Bert Karwatzki <spasswolf@web.de> Closes: https://lore.kernel.org/linux-wireless/2fee61f8c903d02a900ca3188c3742c7effd102e.camel@web.de/#b Signed-off-by: Sean Wang <sean.wang@mediatek.com> Tested-by: Bert Karwatzki <spasswolf@web.de> Link: https://patch.msgid.link/20240718234633.12737-1-sean.wang@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com> 
Fix null pointer access in mt792x_mac_link_bss_remove.

To prevent null pointer access, we should assign the vif to bss_conf in
mt7921_add_interface. This ensures that subsequent operations on the BSS
can properly reference the correct vif.

[  T843] Call Trace:
[  T843]  <TASK>
[  T843]  ? __die+0x1e/0x60
[  T843]  ? page_fault_oops+0x157/0x450
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? search_bpf_extables+0x5a/0x80
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? exc_page_fault+0x2bb/0x670
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? lock_timer_base+0x71/0x90
[  T843]  ? asm_exc_page_fault+0x26/0x30
[  T843]  ? mt792x_mac_link_bss_remove+0x24/0x110 [mt792x_lib]
[  T843]  ? mt792x_remove_interface+0x6e/0x90 [mt792x_lib]
[  T843]  ? ieee80211_do_stop+0x507/0x7e0 [mac80211]
[  T843]  ? ieee80211_stop+0x53/0x190 [mac80211]
[  T843]  ? __dev_close_many+0xa5/0x120
[  T843]  ? __dev_change_flags+0x18c/0x220
[  T843]  ? dev_change_flags+0x21/0x60
[  T843]  ? do_setlink+0xdf9/0x11d0
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? security_sock_rcv_skb+0x33/0x50
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? __nla_validate_parse+0x61/0xd10
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? genl_done+0x53/0x80
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? netlink_dump+0x357/0x410
[  T843]  ? __rtnl_newlink+0x5d6/0x980
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? genl_family_rcv_msg_dumpit+0xdf/0xf0
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? __kmalloc_cache_noprof+0x44/0x210
[  T843]  ? rtnl_newlink+0x42/0x60
[  T843]  ? rtnetlink_rcv_msg+0x152/0x3f0
[  T843]  ? mptcp_pm_nl_dump_addr+0x180/0x180
[  T843]  ? rtnl_calcit.isra.0+0x130/0x130
[  T843]  ? netlink_rcv_skb+0x56/0x100
[  T843]  ? netlink_unicast+0x199/0x290
[  T843]  ? netlink_sendmsg+0x21d/0x490
[  T843]  ? __sock_sendmsg+0x78/0x80
[  T843]  ? ____sys_sendmsg+0x23f/0x2e0
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? copy_msghdr_from_user+0x68/0xa0
[  T843]  ? ___sys_sendmsg+0x81/0xd0
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? crng_fast_key_erasure+0xbc/0xf0
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? get_random_bytes_user+0x126/0x140
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? __fdget+0xb1/0xe0
[  T843]  ? __sys_sendmsg+0x56/0xa0
[  T843]  ? srso_alias_return_thunk+0x5/0xfbef5
[  T843]  ? do_syscall_64+0x5f/0x170
[  T843]  ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
[  T843]  </TASK>

Fixes: 1541d63c5fe2 ("wifi: mt76: mt7925: add mt7925_mac_link_bss_remove to remove per-link BSS")
Reported-by: Bert Karwatzki <spasswolf@web.de>
Closes: https://lore.kernel.org/linux-wireless/2fee61f8c903d02a900ca3188c3742c7effd102e.camel@web.de/#b
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Tested-by: Bert Karwatzki <spasswolf@web.de>
Link: https://patch.msgid.link/20240718234633.12737-1-sean.wang@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
wifi: mt76: mt792x: fix scheduler interference in drv own process 2024-07-09T21:02:10+00:00 Michael Lo michael.lo@mediatek.com 2024-05-23T11:21:31+00:00 d53ab629cff57e450fe69fc90eb1ddc372e8da2d Add some time to wait for LP engine to complete its operation before polling pmctrl register. Signed-off-by: Michael Lo <michael.lo@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Tested-by: David Ruth <druth@chromium.org> Acked-by: Sean Wang <sean.wang@mediatek.com> Link: https://patch.msgid.link/20240523112131.31437-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name> 
Add some time to wait for LP engine to complete its operation
before polling pmctrl register.

Signed-off-by: Michael Lo <michael.lo@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Tested-by: David Ruth <druth@chromium.org>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/20240523112131.31437-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
wifi: mt76: mt7925: enabling MLO when the firmware supports it 2024-07-09T21:02:10+00:00 Sean Wang sean.wang@mediatek.com 2024-07-06T08:28:17+00:00 86c051f2c418abd7eefd8c545a01bdffd220cb95 Register MLD capability for the firmware supporting MLO. Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Co-developed-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Link: https://patch.msgid.link/49c796b101e792c84bc2c0d74753022b75fd3355.1720248331.git.sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name> 
Register MLD capability for the firmware supporting MLO.

Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/49c796b101e792c84bc2c0d74753022b75fd3355.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
wifi: mt76: mt7925: remove the unused mt7925_mcu_set_chan_info 2024-07-09T21:02:10+00:00 Sean Wang sean.wang@mediatek.com 2024-07-06T08:28:16+00:00 67e9847b0208ae02efbe42dbcda4c1a9a1a853cd remove the unused function mt7925_mcu_set_chan_info Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Co-developed-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Link: https://patch.msgid.link/0aa0abe7fc661380ae812c6bc879a7705de401b2.1720248331.git.sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name> 
remove the unused function mt7925_mcu_set_chan_info

Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/0aa0abe7fc661380ae812c6bc879a7705de401b2.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
wifi: mt76: mt7925: update mt7925_mac_link_bss_add for MLO 2024-07-09T21:02:09+00:00 Sean Wang sean.wang@mediatek.com 2024-07-06T08:28:15+00:00 0cb349d742d17707b5b42f0db1df7f3963fc3a8a Update band_idx in per-link BSS to be auto for the MLO-enabled firmware and the MLO-enabled firmware only supports omac index in 0. The change remains compatible with the non-MLO mode and the older firmware. Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Co-developed-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Link: https://patch.msgid.link/37fcf3ea7b4883840d61f97231277b297e1b15a3.1720248331.git.sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name> 
Update band_idx in per-link BSS to be auto for the MLO-enabled firmware
and the MLO-enabled firmware only supports omac index in 0.

The change remains compatible with the non-MLO mode and the older firmware.

Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/37fcf3ea7b4883840d61f97231277b297e1b15a3.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
wifi: mt76: mt7925: update mt7925_mcu_bss_basic_tlv for MLO 2024-07-09T21:02:09+00:00 Sean Wang sean.wang@mediatek.com 2024-07-06T08:28:14+00:00 696d9f3baf03f59584c7c46b62ae28dfd1a731ae update mt7925_mcu_bss_basic_tlv for the MLO-enabled firmware. The change remains compatible with the non-MLO mode and the older firmware. Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Co-developed-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Link: https://patch.msgid.link/583a3ac10583cfef0028f9a0b5a4802fc4070b99.1720248331.git.sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name> 
update mt7925_mcu_bss_basic_tlv for the MLO-enabled firmware.

The change remains compatible with the non-MLO mode and the
older firmware.

Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/583a3ac10583cfef0028f9a0b5a4802fc4070b99.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
wifi: mt76: mt7925: update mt7925_mcu_set_timing for MLO 2024-07-09T21:02:09+00:00 Sean Wang sean.wang@mediatek.com 2024-07-06T08:28:13+00:00 cfbe7f78346e00d33a6461f3f8d94f72c6256acb Set the BSS index from the per-linked BSS for the firmware to identify which link the command is operating on. Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Co-developed-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Link: https://patch.msgid.link/dde970c748586d03fbecbccb10cb9903284719aa.1720248331.git.sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name> 
Set the BSS index from the per-linked BSS for the firmware to identify
which link the command is operating on.

Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/dde970c748586d03fbecbccb10cb9903284719aa.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
wifi: mt76: mt7925: update mt7925_mcu_sta_phy_tlv for MLO 2024-07-09T21:02:09+00:00 Sean Wang sean.wang@mediatek.com 2024-07-06T08:28:12+00:00 beef8d1643663d501ccbd9637fc314ea79ee09ac when we serve MLO during the multiple-linked connection, the chanctx may be not available in the internal driver, we should get the proper the band information from link_conf for the MLO-enabled firmware. Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Co-developed-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Link: https://patch.msgid.link/6620e00fbeef686fb2041556deba346411eab0f1.1720248331.git.sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name> 
when we serve MLO during the multiple-linked connection, the chanctx may
be not available in the internal driver, we should get the proper the
band information from link_conf for the MLO-enabled firmware.

Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/6620e00fbeef686fb2041556deba346411eab0f1.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
wifi: mt76: mt7925: update mt7925_mcu_sta_rate_ctrl_tlv for MLO 2024-07-09T21:02:08+00:00 Sean Wang sean.wang@mediatek.com 2024-07-06T08:28:11+00:00 677f19e161afb1096f30d993ae28140aa61a9847 Get band information from the per-link BSS. Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Co-developed-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Link: https://patch.msgid.link/4f6ca2d082627bb93f79d5a4df80dc08998ee5d2.1720248331.git.sean.wang@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name> 
Get band information from the per-link BSS.

Co-developed-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/4f6ca2d082627bb93f79d5a4df80dc08998ee5d2.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>