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Lorenzo BianconiandFelix Fietkau 06b4b36049 mt76: usb: make rx page_frag_cache access atomic 
Add rx_page_lock spinlock in order to make rx page fragment access
atomic. This patch fixes the following crash that occasionally
occurs during module loading/unloading

BUG: unable to handle kernel paging request at ffff9f8322e19000
PGD 27ba01067 P4D 27ba01067 PUD 27ddba063 PMD 263b35063 PTE 8000000262e19061
Oops: 0003 [#1] SMP PTI
CPU: 2 PID: 1766 Comm: systemd-udevd Not tainted 4.19.0-rc5+ #6
Hardware name: ASUSTeK COMPUTER INC. ESC2000 G2/Z9PE-D8 WS, BIOS 0405 03/19/2012
RIP: 0010:__memcpy+0x12/0x20
RSP: 0018:ffffba13849b3ad8 EFLAGS: 00010246
RAX: ffff9f8322e17004 RBX: 00000000000038f0 RCX: 000000000000031f
RDX: 0000000000000000 RSI: ffffba13844cf058 RDI: ffff9f8322e18ffc
RBP: 0000000000010c6c R08: 0000000000000000 R09: 0000607ec0000000
R10: 0000000000000003 R11: 0000000000003e2e R12: ffff9f8324cd9540
R13: 0000000000000000 R14: ffffba13849b3b30 R15: ffff9f8322e17000
FS:  00007fadec85b880(0000) GS:ffff9f833fa80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff9f8322e19000 CR3: 0000000263428001 CR4: 00000000000606e0
Call Trace:
 mt76x02u_mcu_fw_send_data+0x16c/0x270 [mt76x02_usb]
 mt76x0u_probe+0x35a/0x598 [mt76x0u]
 usb_probe_interface+0x113/0x310
 really_probe+0x1c8/0x400
 driver_probe_device+0x5c/0x130
 __driver_attach+0xec/0x110
 bus_for_each_dev+0x50/0x90
 bus_add_driver+0x1c0/0x280
 driver_register+0x5b/0xe0
 usb_register_driver+0x7c/0x140
 do_one_initcall+0x44/0x19b
 do_init_module+0x5a/0x210
 load_module+0x175c/0x1bc0
 __do_sys_finit_module+0x97/0xc0
 do_syscall_64+0x3f/0xf0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fadeb6f1809
RSP: 002b:00007ffe548f9f38 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 00007fadebdf0d89 RCX: 00007fadeb6f1809
RDX: 0000000000000000 RSI: 00007fadebdf0d89 RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000246 R12: 0000560b9ef58ab0
R13: 0000560b9ef29800 R14: 0000560b9ef59040 R15: 0000000000020000

Fixes: c12128ce44b0 ("mt76: use a per rx queue page fragment cache")
Reported-by: Stanislaw Gruszka <[email protected]>
Tested-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
2018-09-26 22:04:27 +02:00
firmware
update MT7628 firmware to the latest version
2018-05-19 10:52:29 +02:00
mt76x0
mt76: usb: make rx page_frag_cache access atomic
2018-09-26 22:04:27 +02:00
.gitignore
add .gitignore
2015-12-13 17:54:16 +01:00
agg-rx.c
treewide: Use struct_size() for kmalloc()-family
2018-09-12 13:18:26 +02:00
debugfs.c
mt76: move rate_txpower handler in mt76 debugfs
2018-09-26 22:04:27 +02:00
dma.c
mt76: use a per rx queue page fragment cache
2018-09-12 13:16:50 +02:00
dma.h
mt76x02: move TXD/RXD/MCU definitions in mt76x02_dma.h
2018-09-12 13:16:50 +02:00
eeprom.c
revert mt76_eeprom_override call reordering
2017-02-03 14:25:08 +01:00
mac80211.c
treewide: devm_kzalloc() -> devm_kcalloc()
2018-09-12 13:19:33 +02:00
Makefile
mt76: add mt76x02_phy_set_txpower utility routine
2018-09-26 22:04:27 +02:00
mmio.c
mt76: move __iomem regs in mt76_mmio
2018-09-12 13:16:50 +02:00
mt76.h
mt76: usb: make rx page_frag_cache access atomic
2018-09-26 22:04:27 +02:00
mt76x2_common.c
mt76: introduce mmio data structure in mt76_dev
2018-09-12 13:16:50 +02:00
mt76x2_core.c
mt76x2: add hw radar detector
2016-09-25 18:13:12 +02:00
mt76x2_debugfs.c
mt76: move rate_txpower handler in mt76 debugfs
2018-09-26 22:04:27 +02:00
mt76x2_dfs.c
mt76x2: debugfs: add sw pulse statistics to dfs debugfs
2018-09-11 13:49:19 +02:00
mt76x2_dfs.h
mt76x2: debugfs: add sw pulse statistics to dfs debugfs
2018-09-11 13:49:19 +02:00
mt76x2_dma.c
mt76: move mt76{0,2} mcu shared code in mt76x02_mcu.c
2018-09-12 13:16:50 +02:00
mt76x2_eeprom.c
mt76: include linux/module.h in files using MODULE_*
2018-09-26 22:04:27 +02:00
mt76x2_eeprom.h
mt76: add mt76x02_phy_set_txpower utility routine
2018-09-26 22:04:27 +02:00
mt76x2_init_common.c
mt76: add mt76x02_phy_set_txpower utility routine
2018-09-26 22:04:27 +02:00
mt76x2_init.c
mt76: move mt76x2_eeprom_get in mt76x02_eeprom.h
2018-09-21 18:05:35 +02:00
mt76x2_mac_common.c
mt76: move mt76_rate_power in mt76_dev
2018-09-26 16:55:35 +02:00
mt76x2_mac.c
mt76: move mt76x2_tx_complete routine in mt76x02-lib module
2018-09-11 13:49:19 +02:00
mt76x2_mac.h
mt76: unify txwi and rxwi structures
2018-09-11 13:49:19 +02:00
mt76x2_main.c
mt76: move mt76_rate_power in mt76_dev
2018-09-26 16:55:35 +02:00
mt76x2_mcu_common.c
mt76: move mt76x2_eeprom_get in mt76x02_eeprom.h
2018-09-21 18:05:35 +02:00
mt76x2_mcu.c
mt76: report firmware version using ethtool
2018-09-26 22:04:27 +02:00
mt76x2_mcu.h
mt76x0: pci: add fw uploading routine
2018-09-21 17:33:03 +02:00
mt76x2_pci.c
Revert "mt76x2: reset HW before probe"
2018-08-25 13:17:16 +02:00
mt76x2_phy_common.c
mt76: add mt76x02_phy_set_txpower utility routine
2018-09-26 22:04:27 +02:00
mt76x2_phy.c
mt76: move mt76x2_tssi_enabled in mt76x02_eeprom.h
2018-09-21 18:05:35 +02:00
mt76x2_trace.c
update my email address
2016-09-04 17:33:28 +02:00
mt76x2_trace.h
mt76: unify sta structure part 2
2018-09-11 13:49:19 +02:00
mt76x2_tx_common.c
mt76: move mt76_rate_power in mt76_dev
2018-09-26 16:55:35 +02:00
mt76x2_tx.c
mt76x02: move TXD/RXD/MCU definitions in mt76x02_dma.h
2018-09-12 13:16:50 +02:00
mt76x2_usb.c
mt76x2u: Add support for Alfa AWUS036ACM
2018-09-12 13:19:54 +02:00
mt76x2.h
mt76: move mt76_rate_power in mt76_dev
2018-09-26 16:55:35 +02:00
mt76x2u_core.c
mt76: usb: move mt76u_skb_dma_info in mt76x02_usb_core.c
2018-09-12 13:16:49 +02:00
mt76x2u_init.c
mt76: usb: make rx page_frag_cache access atomic
2018-09-26 22:04:27 +02:00
mt76x2u_mac.c
mt76: move mt76x02_mac_setaddr in mt76x02-lib module
2018-09-21 18:05:35 +02:00
mt76x2u_main.c
mt76: move mt76_rate_power in mt76_dev
2018-09-26 16:55:35 +02:00
mt76x2u_mcu.c
mt76: report firmware version using ethtool
2018-09-26 22:04:27 +02:00
mt76x2u_phy.c
mt76: move mt76x2_tssi_enabled in mt76x02_eeprom.h
2018-09-21 18:05:35 +02:00
mt76x2u.h
mt76: move mt76x02_mac_setaddr in mt76x02-lib module
2018-09-21 18:05:35 +02:00
mt76x02_dma.h
mt76x02: move TXD/RXD/MCU definitions in mt76x02_dma.h
2018-09-12 13:16:50 +02:00
mt76x02_eeprom.c
mt76: move mt76x02_eeprom_parse_hw_cap in mt76x02-lib module
2018-09-21 18:05:35 +02:00
mt76x02_eeprom.h
mt76x0: remove eeprom dependency from mt76x0_set_tx_power_per_rate
2018-09-26 22:04:27 +02:00
mt76x02_mac.c
mt76: move mt76x02_mac_setaddr in mt76x02-lib module
2018-09-21 18:05:35 +02:00
mt76x02_mac.h
mt76: fix return value of mt76x02_wait_for_mac
2018-09-26 16:55:35 +02:00
mt76x02_mcu.c
mt76: report firmware version using ethtool
2018-09-26 22:04:27 +02:00
mt76x02_mcu.h
mt76: report firmware version using ethtool
2018-09-26 22:04:27 +02:00
mt76x02_phy.c
mt76: add mt76x02_phy_set_txpower utility routine
2018-09-26 22:04:27 +02:00
mt76x02_phy.h
mt76: add mt76x02_phy_set_txpower utility routine
2018-09-26 22:04:27 +02:00
mt76x02_regs.h
mt76: merge mt76x0/regs.h into mt76x02_regs.h
2018-09-11 13:49:19 +02:00
mt76x02_usb_core.c
mt76x02: move TXD/RXD/MCU definitions in mt76x02_dma.h
2018-09-12 13:16:50 +02:00
mt76x02_usb_mcu.c
mt76: include linux/module.h in files using MODULE_*
2018-09-26 22:04:27 +02:00
mt76x02_usb.h
mt76: usb: move mt76u_skb_dma_info in mt76x02_usb_core.c
2018-09-12 13:16:49 +02:00
mt76x02_util.c
mt76: include linux/module.h in files using MODULE_*
2018-09-26 22:04:27 +02:00
mt76x02_util.h
mt76x02: add static qualifier to mt76x02_remove_dma_hdr
2018-09-12 13:16:50 +02:00
mt7603_beacon.c
mt76: rename mt76_tx_queue_skb in mt76_dma_tx_queue_skb
2018-09-11 13:49:19 +02:00
mt7603_core.c
update my email address
2016-09-04 17:33:28 +02:00
mt7603_debugfs.c
update my email address
2016-09-04 17:33:28 +02:00
mt7603_dma.c
mt76: move __iomem regs in mt76_mmio
2018-09-12 13:16:50 +02:00
mt7603_eeprom.c
mt7603: support loading the entire EEPROM from OTP
2017-02-27 09:52:36 +01:00
mt7603_eeprom.h
update my email address
2016-09-04 17:33:28 +02:00
mt7603_init.c
mt76x2: move interface_modes definition in mt76x2_init
2018-09-11 13:49:19 +02:00
mt7603_mac.c
mt7603: add survey support
2018-08-22 12:26:35 +02:00
mt7603_mac.h
update my email address
2016-09-04 17:33:28 +02:00
mt7603_main.c
mt7603: add survey support
2018-08-22 12:26:35 +02:00
mt7603_mcu.c
mt7603: mcu: fix potential NULL pointer dereferencing on failed allocation
2017-12-15 15:31:01 +01:00
mt7603_mcu.h
mt7603: mcu: fix indentation of mcu command definition
2017-09-25 20:25:12 +02:00
mt7603_pci.c
update my email address
2016-09-04 17:33:28 +02:00
mt7603_regs.h
mt7603: fix BAR rate
2018-08-24 14:00:05 +02:00
mt7603_soc.c
update my email address
2016-09-04 17:33:28 +02:00
mt7603.h
mt7603: add survey support
2018-08-22 12:26:35 +02:00
trace.c
update my email address
2016-09-04 17:33:28 +02:00
trace.h
core: rename register trace events to avoid conflict with mt7601u
2016-09-05 11:29:58 +02:00
tx.c
mt76: unify AC to hw queue mapping
2018-09-11 13:49:19 +02:00
usb_mcu.c
mt76: usb: move mt76x02 mcu code in mt76x02-usb module
2018-09-12 13:16:24 +02:00
usb_trace.c
mt76: add usb support to mt76 layer
2018-09-11 13:49:19 +02:00
usb_trace.h
mt76: add usb support to mt76 layer
2018-09-11 13:49:19 +02:00
usb.c
mt76: usb: make rx page_frag_cache access atomic
2018-09-26 22:04:27 +02:00
util.c
adjust MODULE_LICENSE for license change
2016-09-05 11:34:38 +02:00
util.h
move mt76_insert_hdr_pad to mt76x2_tx.c
2016-09-04 18:06:48 +02:00
S
Description
mac80211 driver for MediaTek MT76x0e, MT76x2e, MT7603, MT7615, MT7628 and MT7688
BSD-3-Clause
105 MiB
Languages
C 99.7%
Perl 0.2%
Makefile 0.1%