AuxXxilium/linux_dsm_epyc7002
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07460b92db
linux_dsm_epyc7002/drivers/net/wireless
History
Sven Eckelmann 07460b92db ath9k: Access rchan::buf only with per_cpu helper 
The relayfs was changed to use per CPU constructs to handle the rchan
buffers. But the users of the rchan buffers in other parts of the kernel
were not modified. This caused crashes like

  BUG: unable to handle kernel paging request at 00003a5198a0b910
  IP: [<ffffffffa973cb3a>] ath_cmn_process_fft+0xea/0x610
  PGD 0 [  179.522449]
  Oops: 0000 [#1] SMP
  Modules linked in:
  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.9.0-rc5 #1
  [...]
  Call Trace:
   <IRQ> [  179.656426]  [<ffffffffa9704373>] ? ath_rx_tasklet+0x2f3/0xd10
   [<ffffffffa9702106>] ? ath9k_tasklet+0x1b6/0x230
   [<ffffffffa90dcbd1>] ? tasklet_action+0xf1/0x100
   [<ffffffffa9a3cb3f>] ? __do_softirq+0xef/0x284
   [<ffffffffa90dd22e>] ? irq_exit+0xae/0xb0
   [<ffffffffa9a3c89f>] ? do_IRQ+0x4f/0xd0
   [<ffffffffa9a3aa42>] ? common_interrupt+0x82/0x82
   <EOI> [  179.703152]  [<ffffffffa9a39c1d>] ? poll_idle+0x2d/0x57
   [<ffffffffa908c845>] ? sched_clock+0x5/0x10
   [<ffffffffa97bc8d6>] ? cpuidle_enter_state+0xf6/0x2d0
   [<ffffffffa911988e>] ? cpu_startup_entry+0x14e/0x230
   [<ffffffffaa3cdf70>] ? start_kernel+0x461/0x481
   [<ffffffffaa3cd120>] ? early_idt_handler_array+0x120/0x120
   [<ffffffffaa3cd413>] ? x86_64_start_kernel+0x14c/0x170
  Code: 31 db 41 be ff ff ff ff 4c 8b 26 48 8b 6e 08 49 8b 84 24 60 05 00
        00 48 8b 00 0f b7 40 04 66 89 44 24 48 eb 11 48 8b 55 40 48 98 <48>
        8b 3c c2 e8 ad a0 a4 ff 01 c3 41 8d 56 01 be 00 02 00 00 48
  RIP  [<ffffffffa973cb3a>] ath_cmn_process_fft+0xea/0x610
   RSP <ffff9b43e7003d20>
  CR2: 00003a5198a0b910

Fixes: 017c59c042 ("relay: Use per CPU constructs for the relay channel buffer pointers")
Cc: Akash Goel <akash.goel@intel.com>
Cc: Nick Kossifidis <mickflemm@gmail.com>
Reported-by: Mathias Kretschmer <mathias.kretschmer@fit.fraunhofer.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-14 19:59:24 +02:00
..
admtek adm80211: return an error if adm8211_alloc_rings() fails 2016-12-30 13:29:21 +02:00
ath ath9k: Access rchan::buf only with per_cpu helper 2017-02-14 19:59:24 +02:00
atmel Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
broadcom brcmfmac: merge two remaining brcmf_err macros 2017-02-08 17:23:39 +02:00
cisco net: use core MTU range checking in wireless drivers 2016-10-20 14:51:08 -04:00
intel Some more updates: 2017-02-10 14:31:51 -05:00
intersil wireless-drivers-next patches for 4.11 2017-01-02 15:23:34 -05:00
marvell Some more updates: 2017-02-10 14:31:51 -05:00
mediatek Makefile: drop -D__CHECK_ENDIAN__ from cflags 2016-12-16 00:13:43 +02:00
ralink rt2x00: remove queue_entry from skbdesc 2017-02-08 17:30:20 +02:00
realtek wireless-drivers-next patches for 4.11 2017-02-10 13:47:52 -05:00
rsi mac80211: Pass new RSSI level in CQM RSSI notification 2017-02-08 10:43:04 +01:00
st mac80211: Pass new RSSI level in CQM RSSI notification 2017-02-08 10:43:04 +01:00
ti Some more updates: 2017-02-10 14:31:51 -05:00
zydas net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
Kconfig wireless: deprecate WDS and disable by default 2016-10-27 09:08:43 +02:00
mac80211_hwsim.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-22 13:27:16 -05:00
mac80211_hwsim.h drivers/wireless: use nla_put_u64_64bit() 2016-04-26 12:00:48 -04:00
Makefile
ray_cs.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ray_cs.h
rayctl.h
rndis_wlan.c cfg80211: Pass new RSSI level in CQM RSSI notification 2017-02-08 10:43:40 +01:00
wl3501_cs.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
wl3501.h