kernel/linux.git/drivers/net/wireless/broadcom, branch v5.4.113

brcmfmac: clear EAP/association status bits on linkdown events

2021-04-07T12:47:41+00:00

[ Upstream commit e862a3e4088070de352fdafe9bd9e3ae0a95a33c ] This ensure that previous association attempts do not leave stale statuses on subsequent attempts. This fixes the WARN_ON(!cr->bss)) from __cfg80211_connect_result() when connecting to an AP after a previous connection failure (e.g. where EAP fails due to incorrect psk but association succeeded). In some scenarios, indeed, brcmf_is_linkup() was reporting a link up event too early due to stale BRCMF_VIF_STATUS_ASSOC_SUCCESS bit, thus reporting to cfg80211 a connection result with a zeroed bssid (vif->profile.bssid is still empty), causing the WARN_ON due to the call to cfg80211_get_bss() with the empty bssid. Signed-off-by: Luca Pesce Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1608807119-21785-1-git-send-email-luca.pesce@vimar.com Signed-off-by: Sasha Levin

brcmfmac: Add DMI nvram filename quirk for Voyo winpad A15 tablet

2021-03-07T11:20:45+00:00

[ Upstream commit a338c874d3d9d2463f031e89ae14942929b93db6 ] The Voyo winpad A15 tablet contains quite generic names in the sys_vendor and product_name DMI strings, without this patch brcmfmac will try to load: rcmfmac4330-sdio.To be filled by O.E.M.-To be filled by O.E.M..txt as nvram file which is a bit too generic. Add a DMI quirk so that a unique and clearly identifiable nvram file name is used on the Voyo winpad A15 tablet. While preparing a matching linux-firmware update I noticed that the nvram is identical to the nvram used on the Prowise-PT301 tablet, so the new DMI quirk entry simply points to the already existing Prowise-PT301 nvram file. Signed-off-by: Hans de Goede Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20210129171413.139880-2-hdegoede@redhat.com Signed-off-by: Sasha Levin

brcmfmac: Add DMI nvram filename quirk for Predia Basic tablet

2021-03-07T11:20:45+00:00

[ Upstream commit af4b3a6f36d6c2fc5fca026bccf45e0fdcabddd9 ] The Predia Basic tablet contains quite generic names in the sys_vendor and product_name DMI strings, without this patch brcmfmac will try to load: brcmfmac43340-sdio.Insyde-CherryTrail.txt as nvram file which is a bit too generic. Add a DMI quirk so that a unique and clearly identifiable nvram file name is used on the Predia Basic tablet. Signed-off-by: Hans de Goede Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20210129171413.139880-1-hdegoede@redhat.com Signed-off-by: Sasha Levin

b43: N-PHY: Fix the update of coef for the PHY revision >= 3case

2021-03-04T09:26:17+00:00

[ Upstream commit 4773acf3d4b50768bf08e9e97a204819e9ea0895 ] The documentation for the PHY update [1] states: Loop 4 times with index i If PHY Revision >= 3 Copy table[i] to coef[i] Otherwise Set coef[i] to 0 the copy of the table to coef is currently implemented the wrong way around, table is being updated from uninitialized values in coeff. Fix this by swapping the assignment around. [1] https://bcm-v4.sipsolutions.net/802.11/PHY/N/RestoreCal/ Fixes: 2f258b74d13c ("b43: N-PHY: implement restoring general configuration") Addresses-Coverity: ("Uninitialized scalar variable") Signed-off-by: Colin Ian King Acked-by: Larry Finger Signed-off-by: David S. Miller Signed-off-by: Sasha Levin

brcmfmac: Fix memory leak for unpaired brcmf_{alloc/free}

2020-12-30T10:51:05+00:00

[ Upstream commit 9db946284e07bb27309dd546b7fee528664ba82a ] There are missig brcmf_free() for brcmf_alloc(). Fix memory leak by adding missed brcmf_free(). Reported-by: Jaehoon Chung Fixes: a1f5aac1765a ("brcmfmac: don't realloc wiphy during PCIe reset") Signed-off-by: Seung-Woo Kim Reviewed-by: Arend van Spriel Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1603849967-22817-1-git-send-email-sw0312.kim@samsung.com Signed-off-by: Sasha Levin

brcmfmac: Fix warning message after dongle setup failed

2020-11-05T10:43:19+00:00

[ Upstream commit 6aa5a83a7ed8036c1388a811eb8bdfa77b21f19c ] Brcmfmac showed warning message in fweh.c when checking the size of event queue which is not initialized. Therefore, we only cancel the worker and reset event handler only when it is initialized. [ 145.505899] brcmfmac 0000:02:00.0: brcmf_pcie_setup: Dongle setup [ 145.929970] ------------[ cut here ]------------ [ 145.929994] WARNING: CPU: 0 PID: 288 at drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c:312 brcmf_fweh_detach+0xbc/0xd0 [brcmfmac] ... [ 145.930029] Call Trace: [ 145.930036] brcmf_detach+0x77/0x100 [brcmfmac] [ 145.930043] brcmf_pcie_remove+0x79/0x130 [brcmfmac] [ 145.930046] pci_device_remove+0x39/0xc0 [ 145.930048] device_release_driver_internal+0x141/0x200 [ 145.930049] device_release_driver+0x12/0x20 [ 145.930054] brcmf_pcie_setup+0x101/0x3c0 [brcmfmac] [ 145.930060] brcmf_fw_request_done+0x11d/0x1f0 [brcmfmac] [ 145.930062] ? lock_timer_base+0x7d/0xa0 [ 145.930063] ? internal_add_timer+0x1f/0xa0 [ 145.930064] ? add_timer+0x11a/0x1d0 [ 145.930066] ? __kmalloc_track_caller+0x18c/0x230 [ 145.930068] ? kstrdup_const+0x23/0x30 [ 145.930069] ? add_dr+0x46/0x80 [ 145.930070] ? devres_add+0x3f/0x50 [ 145.930072] ? usermodehelper_read_unlock+0x15/0x20 [ 145.930073] ? _request_firmware+0x288/0xa20 [ 145.930075] request_firmware_work_func+0x36/0x60 [ 145.930077] process_one_work+0x144/0x360 [ 145.930078] worker_thread+0x4d/0x3c0 [ 145.930079] kthread+0x112/0x150 [ 145.930080] ? rescuer_thread+0x340/0x340 [ 145.930081] ? kthread_park+0x60/0x60 [ 145.930083] ret_from_fork+0x25/0x30 Signed-off-by: Wright Feng Signed-off-by: Chi-hsien Lin Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200928054922.44580-3-wright.feng@cypress.com Signed-off-by: Sasha Levin

brcm80211: fix possible memleak in brcmf_proto_msgbuf_attach

2020-10-29T08:58:09+00:00

[ Upstream commit 6c151410d5b57e6bb0d91a735ac511459539a7bf ] When brcmf_proto_msgbuf_attach fail and msgbuf->txflow_wq != NULL, we should destroy the workqueue. Reported-by: Hulk Robot Signed-off-by: Wang Yufen Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1595237765-66238-1-git-send-email-wangyufen@huawei.com Signed-off-by: Sasha Levin

brcmsmac: fix memory leak in wlc_phy_attach_lcnphy

2020-10-29T08:58:07+00:00

[ Upstream commit f4443293d741d1776b86ed1dd8c4e4285d0775fc ] When wlc_phy_txpwr_srom_read_lcnphy fails in wlc_phy_attach_lcnphy, the allocated pi->u.pi_lcnphy is leaked, since struct brcms_phy will be freed in the caller function. Fix this by calling wlc_phy_detach_lcnphy in the error handler of wlc_phy_txpwr_srom_read_lcnphy before returning. Signed-off-by: Keita Suzuki Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200908121743.23108-1-keitasuzuki.park@sslab.ics.keio.ac.jp Signed-off-by: Sasha Levin

brcmfmac: check ndev pointer

2020-10-29T08:57:36+00:00

[ Upstream commit 9c9f015bc9f8839831c7ba0a6d731a3853c464e2 ] Clang static analysis reports this error brcmfmac/core.c:490:4: warning: Dereference of null pointer (*ifp)->ndev->stats.rx_errors++; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In this block of code if (ret || !(*ifp) || !(*ifp)->ndev) { if (ret != -ENODATA && *ifp) (*ifp)->ndev->stats.rx_errors++; brcmu_pkt_buf_free_skb(skb); return -ENODATA; } (*ifp)->ndev being NULL is caught as an error But then it is used to report the error. So add a check before using it. Fixes: 91b632803ee4 ("brcmfmac: Use net_device_stats from struct net_device") Signed-off-by: Tom Rix Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200802161804.6126-1-trix@redhat.com Signed-off-by: Sasha Levin

brcmfmac: Fix double freeing in the fmac usb data path

2020-10-01T11:17:49+00:00

[ Upstream commit 78179869dc3f5c0059bbf5d931a2717f1ad97ecd ] When the brcmf_fws_process_skb() fails to get hanger slot for queuing the skb, it tries to free the skb. But the caller brcmf_netdev_start_xmit() of that funciton frees the packet on error return value. This causes the double freeing and which caused the kernel crash. Signed-off-by: Raveendran Somu Signed-off-by: Chi-hsien Lin Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1585124429-97371-3-git-send-email-chi-hsien.lin@cypress.com Signed-off-by: Sasha Levin