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Masashi Honma e307bfda74 ath9k_htc: Discard undersized packets 
[ Upstream commit cd486e627e ]

Sometimes the hardware will push small packets that trigger a WARN_ON
in mac80211. Discard them early to avoid this issue.

This patch ports 2 patches from ath9k to ath9k_htc.
commit 3c0efb745a "ath9k: discard
undersized packets".
commit df5c415050 "ath9k: correctly
handle short radar pulses".

[  112.835889] ------------[ cut here ]------------
[  112.835971] WARNING: CPU: 5 PID: 0 at net/mac80211/rx.c:804 ieee80211_rx_napi+0xaac/0xb40 [mac80211]
[  112.835973] Modules linked in: ath9k_htc ath9k_common ath9k_hw ath mac80211 cfg80211 libarc4 nouveau snd_hda_codec_hdmi intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_hda_codec video snd_hda_core ttm snd_hwdep drm_kms_helper snd_pcm crct10dif_pclmul snd_seq_midi drm snd_seq_midi_event crc32_pclmul snd_rawmidi ghash_clmulni_intel snd_seq aesni_intel aes_x86_64 crypto_simd cryptd snd_seq_device glue_helper snd_timer sch_fq_codel i2c_algo_bit fb_sys_fops snd input_leds syscopyarea sysfillrect sysimgblt intel_cstate mei_me intel_rapl_perf soundcore mxm_wmi lpc_ich mei kvm_intel kvm mac_hid irqbypass parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid hid raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear e1000e ahci libahci wmi
[  112.836022] CPU: 5 PID: 0 Comm: swapper/5 Not tainted 5.3.0-wt #1
[  112.836023] Hardware name: MouseComputer Co.,Ltd. X99-S01/X99-S01, BIOS 1.0C-W7 04/01/2015
[  112.836056] RIP: 0010:ieee80211_rx_napi+0xaac/0xb40 [mac80211]
[  112.836059] Code: 00 00 66 41 89 86 b0 00 00 00 e9 c8 fa ff ff 4c 89 b5 40 ff ff ff 49 89 c6 e9 c9 fa ff ff 48 c7 c7 e0 a2 a5 c0 e8 47 41 b0 e9 <0f> 0b 48 89 df e8 5a 94 2d ea e9 02 f9 ff ff 41 39 c1 44 89 85 60
[  112.836060] RSP: 0018:ffffaa6180220da8 EFLAGS: 00010286
[  112.836062] RAX: 0000000000000024 RBX: ffff909a20eeda00 RCX: 0000000000000000
[  112.836064] RDX: 0000000000000000 RSI: ffff909a2f957448 RDI: ffff909a2f957448
[  112.836065] RBP: ffffaa6180220e78 R08: 00000000000006e9 R09: 0000000000000004
[  112.836066] R10: 000000000000000a R11: 0000000000000001 R12: 0000000000000000
[  112.836068] R13: ffff909a261a47a0 R14: 0000000000000000 R15: 0000000000000004
[  112.836070] FS:  0000000000000000(0000) GS:ffff909a2f940000(0000) knlGS:0000000000000000
[  112.836071] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  112.836073] CR2: 00007f4e3ffffa08 CR3: 00000001afc0a006 CR4: 00000000001606e0
[  112.836074] Call Trace:
[  112.836076]  <IRQ>
[  112.836083]  ? finish_td+0xb3/0xf0
[  112.836092]  ? ath9k_rx_prepare.isra.11+0x22f/0x2a0 [ath9k_htc]
[  112.836099]  ath9k_rx_tasklet+0x10b/0x1d0 [ath9k_htc]
[  112.836105]  tasklet_action_common.isra.22+0x63/0x110
[  112.836108]  tasklet_action+0x22/0x30
[  112.836115]  __do_softirq+0xe4/0x2da
[  112.836118]  irq_exit+0xae/0xb0
[  112.836121]  do_IRQ+0x86/0xe0
[  112.836125]  common_interrupt+0xf/0xf
[  112.836126]  </IRQ>
[  112.836130] RIP: 0010:cpuidle_enter_state+0xa9/0x440
[  112.836133] Code: 3d bc 20 38 55 e8 f7 1d 84 ff 49 89 c7 0f 1f 44 00 00 31 ff e8 28 29 84 ff 80 7d d3 00 0f 85 e6 01 00 00 fb 66 0f 1f 44 00 00 <45> 85 ed 0f 89 ff 01 00 00 41 c7 44 24 10 00 00 00 00 48 83 c4 18
[  112.836134] RSP: 0018:ffffaa61800e3e48 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffde
[  112.836136] RAX: ffff909a2f96b340 RBX: ffffffffabb58200 RCX: 000000000000001f
[  112.836137] RDX: 0000001a458adc5d RSI: 0000000026c9b581 RDI: 0000000000000000
[  112.836139] RBP: ffffaa61800e3e88 R08: 0000000000000002 R09: 000000000002abc0
[  112.836140] R10: ffffaa61800e3e18 R11: 000000000000002d R12: ffffca617fb40b00
[  112.836141] R13: 0000000000000002 R14: ffffffffabb582d8 R15: 0000001a458adc5d
[  112.836145]  ? cpuidle_enter_state+0x98/0x440
[  112.836149]  ? menu_select+0x370/0x600
[  112.836151]  cpuidle_enter+0x2e/0x40
[  112.836154]  call_cpuidle+0x23/0x40
[  112.836156]  do_idle+0x204/0x280
[  112.836159]  cpu_startup_entry+0x1d/0x20
[  112.836164]  start_secondary+0x167/0x1c0
[  112.836169]  secondary_startup_64+0xa4/0xb0
[  112.836173] ---[ end trace 9f4cd18479cc5ae5 ]---

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2020-01-09 10:20:06 +01:00
..
appletalk
…
arcnet drivers: net: Fix Kconfig indentation 2019-09-26 08:56:17 +02:00
bonding bonding: fix active-backup transition after link failure 2020-01-04 19:19:11 +01:00
caif
…
can can: flexcan: add low power enter/exit acknowledgment helper 2019-12-31 16:46:05 +01:00
dsa net: dsa: sja1105: Reconcile the meaning of TPID and TPID2 for E/T and P/Q/R/S 2020-01-04 19:19:06 +01:00
ethernet net: ena: fix napi handler misbehavior when the napi budget is zero 2020-01-04 19:19:17 +01:00
fddi
…
fjes fjes: fix missed check in fjes_acpi_add 2019-12-31 16:41:14 +01:00
hamradio 6pack,mkiss: fix possible deadlock 2020-01-04 19:18:36 +01:00
hippi
…
hyperv hv_netvsc: Fix tx_table init in rndis_set_subchannel() 2020-01-04 19:19:15 +01:00
ieee802154 Merge tag 'ieee802154-for-davem-2019-09-28' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan 2019-09-30 17:14:45 -07:00
ipvlan net: core: add generic lockdep keys 2019-10-24 14:53:48 -07:00
netdevsim devlink: disallow reload operation during device cleanup 2019-11-09 19:38:36 -08:00
phy net: phylink: fix interface passed to mac_link_up 2020-01-04 19:19:17 +01:00
plip
…
ppp net: core: add generic lockdep keys 2019-10-24 14:53:48 -07:00
slip slip: Fix use-after-free Read in slip_open 2019-12-04 22:30:56 +01:00
team team: call RCU read lock when walking the port_list 2019-12-31 16:43:54 +01:00
usb net: usb: lan78xx: Fix suspend/resume PHY register access error 2019-12-31 16:41:29 +01:00
vmxnet3
…
wan net/wan: dscc4: remove broken dscc4 driver 2019-09-16 09:14:41 +02:00
wimax wimax: i2400: Fix memory leak in i2400m_op_rfkill_sw_toggle 2019-10-29 16:20:25 -07:00
wireless ath9k_htc: Discard undersized packets 2020-01-09 10:20:06 +01:00
xen-netback xen/netback: fix error path of xenvif_connect_data() 2019-10-19 11:43:29 -07:00
Kconfig drivers: net: Fix Kconfig indentation 2019-09-26 08:56:17 +02:00
LICENSE.SRC
…
Makefile
…
Space.c
…
dummy.c
…
eql.c
…
geneve.c net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2019-12-18 16:08:42 +01:00
gtp.c gtp: do not allow adding duplicate tid and ms_addr pdp context 2020-01-04 19:19:16 +01:00
ifb.c
…
loopback.c
…
macsec.c net: remove unnecessary variables and callback 2019-10-24 14:53:49 -07:00
macvlan.c macvlan: schedule bc_work even if error 2019-12-04 22:30:52 +01:00
macvtap.c
…
mdio.c
…
mii.c
…
net_failover.c
…
netconsole.c
…
nlmon.c
…
ntb_netdev.c
…
rionet.c
…
sb1000.c
…
sungem_phy.c
…
tap.c net: tap: clean up an indentation issue 2019-09-27 20:58:35 +02:00
thunderbolt.c
…
tun.c tun: fix data-race in gro_normal_list() 2019-12-31 16:45:34 +01:00
veth.c
…
virtio_net.c netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
vrf.c net: core: add generic lockdep keys 2019-10-24 14:53:48 -07:00
vsockmon.c
…
vxlan.c net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2019-12-18 16:08:42 +01:00
xen-netfront.c xen-netfront: do not use ~0U as error return value for xennet_fill_frags() 2019-10-01 21:49:51 -04:00