commit 5bf8e6096c7390f8f2c4d5394b5e49823adb004e upstream.
According to the struct net_device_ops documentation .ndo_start_xmit is
"Required; cannot be NULL.". Missing it may crash kernel easily:
[ 341.216709] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[ 341.224836] pgd = 26088755
[ 341.227544] [00000000] *pgd=00000000
[ 341.231135] Internal error: Oops: 80000007 [#1] SMP ARM
[ 341.236367] Modules linked in: pppoe ppp_async iptable_nat brcmfmac xt_state xt_nat xt_conntrack xt_REDIRECT xt_MASQU
[ 341.304689] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.24 #0
[ 341.310621] Hardware name: BCM5301X
[ 341.314116] PC is at 0x0
[ 341.316664] LR is at dev_hard_start_xmit+0x8c/0x11c
[ 341.321546] pc : [<00000000>] lr : [<c0469fa8>] psr: 60000113
[ 341.327821] sp : c0801c30 ip : c610cf00 fp : c08048e4
[ 341.333051] r10: c073a63a r9 : c08044dc r8 : c6c04e00
[ 341.338283] r7 : 00000000 r6 : c60f5000 r5 : 00000000 r4 : c6a9c3c0
[ 341.344820] r3 : 00000000 r2 : bf25a13c r1 : c60f5000 r0 : c6a9c3c0
[ 341.351358] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 341.358504] Control: 10c5387d Table: 0611c04a DAC: 00000051
[ 341.364257] Process swapper/0 (pid: 0, stack limit = 0xc68ed0ca)
[ 341.370271] Stack: (0xc0801c30 to 0xc0802000)
[ 341.374633] 1c20: c6e7d480 c0802d00 c60f5050 c0801c6c
[ 341.382825] 1c40: c60f5000 c6a9c3c0 c6f90000 c6f9005c c6c04e00 c60f5000 00000000 c6f9005c
[ 341.391015] 1c60: 00000000 c04a033c 00f90200 00000010 c6a9c3c0 c6a9c3c0 c6f90000 00000000
[ 341.399205] 1c80: 00000000 00000000 00000000 c046a7ac c6f9005c 00000001 fffffff4 00000000
[ 341.407395] 1ca0: c6f90200 00000000 c60f5000 c0479550 00000000 c6f90200 c6a9c3c0 16000000
[ 341.415586] 1cc0: 0000001c 6f4ad52f c6197040 b6df9387 36000000 c0520404 c073a80c c6a9c3c0
[ 341.423777] 1ce0: 00000000 c6d643c0 c6a9c3c0 c0800024 00000001 00000001 c6d643c8 c6a9c3c0
[ 341.431967] 1d00: c081b9c0 c7abca80 c610c840 c081b9c0 0000001c 00400000 c6bc5e6c c0522fb4
[ 341.440157] 1d20: c6d64400 00000004 c6bc5e0a 00000000 c60f5000 c7abca80 c081b9c0 c0522f54
[ 341.448348] 1d40: c6a9c3c0 c7abca80 c0803e48 c0549c94 c610c828 0000000a c0801d74 00000003
[ 341.456538] 1d60: c6ec8f0a 00000000 c60f5000 c7abca80 c081b9c0 c0548520 0000000a 00000000
[ 341.464728] 1d80: 00000000 003a0000 00000000 00000000 00000000 00000000 00000000 00000000
[ 341.472919] 1da0: 000002ff 00000000 00000000 16000000 00000000 00000000 00000000 00000000
[ 341.481110] 1dc0: 00000000 0000008f 00000000 00000000 00000000 2d132a69 c6bc5e40 00000000
[ 341.489300] 1de0: c6bc5e40 c6a9c3c0 00000000 c6ec8e50 00000001 c054b070 00000001 00000000
[ 341.497490] 1e00: c0807200 c6bc5e00 00000000 ffffe000 00000100 c054aea4 00000000 00000000
[ 341.505681] 1e20: 00000122 00400000 c0802d00 c0172e80 6f56a70e ffffffff 6f56a70e c7eb9cc0
[ 341.513871] 1e40: c7eb82c0 00000000 c0801e60 c017309c 00000000 00000000 07780000 c07382c0
[ 341.522061] 1e60: 00000000 c7eb9cc0 c0739cc0 c0803f74 c0801e70 c0801e70 c0801ea4 c013d380
[ 341.530253] 1e80: 00000000 000000a0 00000001 c0802084 c0802080 40000001 ffffe000 00000100
[ 341.538443] 1ea0: c0802080 c01021e8 c8803100 10c5387d 00000000 c07341f0 c0739880 0000000a
[ 341.546633] 1ec0: c0734180 00001017 c0802d00 c062aa98 00200002 c062aa60 c8803100 c073984c
[ 341.554823] 1ee0: 00000000 00000001 00000000 c7810000 c8803100 10c5387d 00000000 c011c188
[ 341.563014] 1f00: c073984c c015f0f8 c0804244 c0815ae4 c880210c c8802100 c0801f40 c037c584
[ 341.571204] 1f20: c01035f8 60000013 ffffffff c0801f74 c080afd4 c0800000 10c5387d c0101a8c
[ 341.579395] 1f40: 00000000 004ac9dc c7eba4b4 c010ee60 ffffe000 c0803e68 c0803ea8 00000001
[ 341.587587] 1f60: c080afd4 c062ca20 10c5387d 00000000 00000000 c0801f90 c01035f4 c01035f8
[ 341.595776] 1f80: 60000013 ffffffff 00000051 00000000 ffffe000 c013ff50 000000ce c0803e40
[ 341.603967] 1fa0: c082216c 00000000 00000001 c072ba38 10c5387d c0140214 c0822184 c0700df8
[ 341.612157] 1fc0: ffffffff ffffffff 00000000 c070058c c072ba38 2d162e71 00000000 c0700330
[ 341.620348] 1fe0: 00000051 10c0387d 000000ff 00a521d0 413fc090 00000000 00000000 00000000
[ 341.628558] [<c0469fa8>] (dev_hard_start_xmit) from [<c04a033c>] (sch_direct_xmit+0xe4/0x2bc)
[ 341.637106] [<c04a033c>] (sch_direct_xmit) from [<c046a7ac>] (__dev_queue_xmit+0x6a4/0x72c)
[ 341.645481] [<c046a7ac>] (__dev_queue_xmit) from [<c0520404>] (ip6_finish_output2+0x18c/0x434)
[ 341.654112] [<c0520404>] (ip6_finish_output2) from [<c0522fb4>] (ip6_output+0x5c/0xd0)
[ 341.662053] [<c0522fb4>] (ip6_output) from [<c0549c94>] (mld_sendpack+0x1a0/0x1a8)
[ 341.669640] [<c0549c94>] (mld_sendpack) from [<c054b070>] (mld_ifc_timer_expire+0x1cc/0x2e4)
[ 341.678111] [<c054b070>] (mld_ifc_timer_expire) from [<c0172e80>] (call_timer_fn.constprop.3+0x24/0x98)
[ 341.687527] [<c0172e80>] (call_timer_fn.constprop.3) from [<c017309c>] (run_timer_softirq+0x1a8/0x1e4)
[ 341.696860] [<c017309c>] (run_timer_softirq) from [<c01021e8>] (__do_softirq+0x120/0x2b0)
[ 341.705066] [<c01021e8>] (__do_softirq) from [<c011c188>] (irq_exit+0x78/0x84)
[ 341.712317] [<c011c188>] (irq_exit) from [<c015f0f8>] (__handle_domain_irq+0x60/0xb4)
[ 341.720179] [<c015f0f8>] (__handle_domain_irq) from [<c037c584>] (gic_handle_irq+0x4c/0x90)
[ 341.728549] [<c037c584>] (gic_handle_irq) from [<c0101a8c>] (__irq_svc+0x6c/0x90)
Fixes: 20f2c5fa3af0 ("brcmfmac: add initial support for monitor mode")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200327130307.26477-1-zajec5@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 863844ee3bd38219c88e82966d1df36a77716f3e ]
With commit 216b44000ada ("brcmfmac: Fix use after free in
brcmf_sdio_readframes()") applied, we see locking timeouts in
brcmf_sdio_watchdog_thread().
brcmfmac: brcmf_escan_timeout: timer expired
INFO: task brcmf_wdog/mmc1:621 blocked for more than 120 seconds.
Not tainted 4.19.94-07984-g24ff99a0f713 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
brcmf_wdog/mmc1 D 0 621 2 0x00000000 last_sleep: 2440793077. last_runnable: 2440766827
[<c0aa1e60>] (__schedule) from [<c0aa2100>] (schedule+0x98/0xc4)
[<c0aa2100>] (schedule) from [<c0853830>] (__mmc_claim_host+0x154/0x274)
[<c0853830>] (__mmc_claim_host) from [<bf10c5b8>] (brcmf_sdio_watchdog_thread+0x1b0/0x1f8 [brcmfmac])
[<bf10c5b8>] (brcmf_sdio_watchdog_thread [brcmfmac]) from [<c02570b8>] (kthread+0x178/0x180)
In addition to restarting or exiting the loop, it is also necessary to
abort the command and to release the host.
Fixes: 216b44000ada ("brcmfmac: Fix use after free in brcmf_sdio_readframes()")
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Matthias Kaehlcke <mka@chromium.org>
Cc: Brian Norris <briannorris@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: franky.lin@broadcom.com
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Pull networking updates from David Miller:
1) Add WireGuard
2) Add HE and TWT support to ath11k driver, from John Crispin.
3) Add ESP in TCP encapsulation support, from Sabrina Dubroca.
4) Add variable window congestion control to TIPC, from Jon Maloy.
5) Add BCM84881 PHY driver, from Russell King.
6) Start adding netlink support for ethtool operations, from Michal
Kubecek.
7) Add XDP drop and TX action support to ena driver, from Sameeh
Jubran.
8) Add new ipv4 route notifications so that mlxsw driver does not have
to handle identical routes itself. From Ido Schimmel.
9) Add BPF dynamic program extensions, from Alexei Starovoitov.
10) Support RX and TX timestamping in igc, from Vinicius Costa Gomes.
11) Add support for macsec HW offloading, from Antoine Tenart.
12) Add initial support for MPTCP protocol, from Christoph Paasch,
Matthieu Baerts, Florian Westphal, Peter Krystad, and many others.
13) Add Octeontx2 PF support, from Sunil Goutham, Geetha sowjanya, Linu
Cherian, and others.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1469 commits)
net: phy: add default ARCH_BCM_IPROC for MDIO_BCM_IPROC
udp: segment looped gso packets correctly
netem: change mailing list
qed: FW 8.42.2.0 debug features
qed: rt init valid initialization changed
qed: Debug feature: ilt and mdump
qed: FW 8.42.2.0 Add fw overlay feature
qed: FW 8.42.2.0 HSI changes
qed: FW 8.42.2.0 iscsi/fcoe changes
qed: Add abstraction for different hsi values per chip
qed: FW 8.42.2.0 Additional ll2 type
qed: Use dmae to write to widebus registers in fw_funcs
qed: FW 8.42.2.0 Parser offsets modified
qed: FW 8.42.2.0 Queue Manager changes
qed: FW 8.42.2.0 Expose new registers and change windows
qed: FW 8.42.2.0 Internal ram offsets modifications
MAINTAINERS: Add entry for Marvell OcteonTX2 Physical Function driver
Documentation: net: octeontx2: Add RVU HW and drivers overview
octeontx2-pf: ethtool RSS config support
octeontx2-pf: Add basic ethtool support
...
idx is declared as u32, it will never less than 0. Signed-off-by: yuehaibing <yuehaibing@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Report monitor interface availability using cfg80211 and support it in the add_virtual_intf() and del_virtual_intf() callbacks. This new feature is conditional and depends on firmware flagging monitor packets. Receiving monitor frames is already handled by the brcmf_netif_mon_rx(). Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Move similar/duplicated code out of combination specific code blocks. This simplifies code a bit and allows adding more combinations later. A list of combinations remains unchanged. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Commit 262f2b53f679 ("brcmfmac: call brcmf_attach() just before calling
brcmf_bus_started()") changed the initialization order of the brcmfmac
SDIO driver. Unfortunately since brcmf_sdiod_intr_register() is now
called before the sdiodev->bus_if initialization, it reads the wrong
chip ID and fails to initialize the GPIO on brcm43362. Thus the chip
cannot send interrupts and fails to probe:
[ 12.517023] brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
[ 12.531214] ieee80211 phy0: brcmf_bus_started: failed: -110
[ 12.536976] ieee80211 phy0: brcmf_attach: dongle is not responding: err=-110
[ 12.566467] brcmfmac: brcmf_sdio_firmware_callback: brcmf_attach failed
Initialize the bus interface earlier to ensure that
brcmf_sdiod_intr_register() properly sets up the OOB interrupt.
BugLink: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=908438
Fixes: 262f2b53f679 ("brcmfmac: call brcmf_attach() just before calling brcmf_bus_started()")
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Fixes coccicheck warning: drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:911:2-24: WARNING: Assignment of 0/1 to bool variable Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: zhengbin <zhengbin13@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
NVIDIA Tegra SoCs do not like when OOB wake is enabled and WiFi interface is in DOWN state during suspend. This results in a CPU hang on programming OOB wake-up state of the GPIO controller during of system's suspend. The solution is trivial: don't enable wake for the OOB interrupt when it should be disabled. This fixes hang on Tegra20 (Acer A500) and Tegra30 (Nexus 7) devices which are using BCM4329 and BCM4330 WiFi chips respectively. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>