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200918b34d
linux/net/mac80211
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Steven Rostedt (Google) 292a089d78 treewide: Convert del_timer*() to timer_shutdown*() 
Due to several bugs caused by timers being re-armed after they are
shutdown and just before they are freed, a new state of timers was added
called "shutdown".  After a timer is set to this state, then it can no
longer be re-armed.

The following script was run to find all the trivial locations where
del_timer() or del_timer_sync() is called in the same function that the
object holding the timer is freed.  It also ignores any locations where
the timer->function is modified between the del_timer*() and the free(),
as that is not considered a "trivial" case.

This was created by using a coccinelle script and the following
commands:

    $ cat timer.cocci
    @@
    expression ptr, slab;
    identifier timer, rfield;
    @@
    (
    -       del_timer(&ptr->timer);
    +       timer_shutdown(&ptr->timer);
    |
    -       del_timer_sync(&ptr->timer);
    +       timer_shutdown_sync(&ptr->timer);
    )
      ... when strict
          when != ptr->timer
    (
            kfree_rcu(ptr, rfield);
    |
            kmem_cache_free(slab, ptr);
    |
            kfree(ptr);
    )

    $ spatch timer.cocci . > /tmp/t.patch
    $ patch -p1 < /tmp/t.patch

Link: https://lore.kernel.org/lkml/20221123201306.823305113@linutronix.de/
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Pavel Machek <pavel@ucw.cz> [ LED ]
Acked-by: Kalle Valo <kvalo@kernel.org> [ wireless ]
Acked-by: Paolo Abeni <pabeni@redhat.com> [ networking ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-12-25 13:38:09 -08:00
..
aead_api.c mac80211: Check crypto_aead_encrypt for errors 2021-03-16 21:20:41 +01:00
aead_api.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_ccm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_cmac.c mac80211: aes_cmac: check crypto_shash_setkey() return value 2021-04-19 12:01:40 +02:00
aes_cmac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_gcm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
aes_gmac.c mac80211: Check crypto_aead_encrypt for errors 2021-03-16 21:20:41 +01:00
aes_gmac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
agg-rx.c wifi: mac80211: remove support for AddBA with fragmentation 2022-10-07 15:24:31 +02:00
agg-tx.c wifi: mac80211: transmit AddBA with MLD address 2022-10-07 15:24:02 +02:00
airtime.c wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration 2022-11-25 12:45:53 +01:00
cfg.c wifi: mac80211: fix maybe-unused warning 2022-12-01 15:09:07 +01:00
chan.c wifi: mac80211: isolate driver from inactive links 2022-09-06 10:12:44 +02:00
debug.h wifi: mac80211: debug: omit link if non-MLO connection 2022-07-15 11:43:14 +02:00
debugfs_key.c wifi: mac80211: reorg some iface data structs for MLD 2022-06-20 12:55:06 +02:00
debugfs_key.h mac80211: Support BIGTK configuration for Beacon protection 2020-02-24 10:35:57 +01:00
debugfs_netdev.c wifi: mac80211: Drop support for TX push path 2022-10-10 11:06:14 +02:00
debugfs_netdev.h
debugfs_sta.c wifi: mac80211: Drop support for TX push path 2022-10-10 11:06:14 +02:00
debugfs_sta.h wifi: mac80211: add API to show the link STAs in debugfs 2022-10-07 15:23:41 +02:00
debugfs.c wifi: mac80211: Drop support for TX push path 2022-10-10 11:06:14 +02:00
debugfs.h
driver-ops.c wifi: mac80211: add API to show the link STAs in debugfs 2022-10-07 15:23:41 +02:00
driver-ops.h wifi: mac80211: add API to show the link STAs in debugfs 2022-10-07 15:23:41 +02:00
eht.c wifi: cfg80211/mac80211: check EHT capability size correctly 2022-08-25 10:41:24 +02:00
ethtool.c wifi: mac80211: read ethtool's sta_stats from sinfo 2022-08-26 09:56:54 +02:00
fils_aead.c mac80211: fils: use cfg80211_find_ext_elem() 2021-10-21 17:01:16 +02:00
fils_aead.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
he.c wifi: mac80211: keep A-MSDU data in sta and per-link 2022-09-06 10:17:08 +02:00
ht.c wifi: mac80211: keep A-MSDU data in sta and per-link 2022-09-06 10:17:08 +02:00
ibss.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-09-01 12:58:02 -07:00
ieee80211_i.h wifi: mac80211: Drop support for TX push path 2022-10-10 11:06:14 +02:00
iface.c wifi: mac80211: add support for restricting netdev features per vif 2022-12-01 15:09:10 +01:00
Kconfig ath9k: fix build error with LEDS_CLASS=m 2021-01-28 09:29:34 +02:00
key.c wifi: mac80211: implement link switching 2022-09-06 10:17:20 +02:00
key.h wifi: mac80211: implement link switching 2022-09-06 10:17:20 +02:00
led.c mac80211: don't open-code LED manipulations 2021-06-23 11:29:12 +02:00
led.h mac80211: fix throughput LED trigger 2021-11-15 10:56:57 +01:00
link.c wifi: mac80211: recalc station aggregate data during link switch 2022-10-07 15:23:45 +02:00
main.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-11-10 17:43:53 -08:00
Makefile wifi: mac80211: move link code to a new file 2022-09-03 17:02:25 +02:00
mesh_hwmp.c wifi: mac80211: fix multi-BSSID element parsing 2022-07-15 11:43:17 +02:00
mesh_pathtbl.c treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
mesh_plink.c wifi: mac80211: fix up link station creation/insertion 2022-07-15 11:43:23 +02:00
mesh_ps.c mac80211: mesh: fix potentially unaligned access 2021-09-23 13:25:09 +02:00
mesh_sync.c mac80211: mesh: clean up rx_bcn_presp API 2021-09-23 16:26:33 +02:00
mesh.c wifi: mac80211: correct SMPS mode in HE 6 GHz capability 2022-08-26 09:56:36 +02:00
mesh.h mac80211: mesh: embedd mesh_paths and mpp_paths into ieee80211_if_mesh 2022-01-04 15:11:49 +01:00
michael.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
michael.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mlme.c wifi: mac80211: don't parse multi-BSSID in assoc resp 2022-12-01 15:09:10 +01:00
ocb.c wifi: mac80211: fix up link station creation/insertion 2022-07-15 11:43:23 +02:00
offchannel.c wifi: mac80211: expand ieee80211_mgmt_tx() for MLO 2022-07-22 14:28:35 +02:00
pm.c mac80211: Prevent AP probing during suspend 2021-10-21 17:27:51 +02:00
rate.c wifi: mac80211: make ieee80211_check_rate_mask() link-aware 2022-07-15 11:43:21 +02:00
rate.h wifi: mac80211: make ieee80211_check_rate_mask() link-aware 2022-07-15 11:43:21 +02:00
rc80211_minstrel_ht_debugfs.c mac80211: minstrel_ht: show sampling rates in debugfs 2021-02-12 08:58:11 +01:00
rc80211_minstrel_ht.c wireless-next patches for v6.2 2022-10-28 18:31:40 -07:00
rc80211_minstrel_ht.h wifi: mac80211: minstrel_ht: remove unused has_mrr member from struct minstrel_priv 2022-10-07 15:25:05 +02:00
rx.c wifi: mac80211: fix and simplify unencrypted drop check for mesh 2022-12-01 15:11:11 +01:00
s1g.c wifi: mac80211: Set TWT Information Frame Disabled bit as 1 2022-11-02 09:50:40 +01:00
scan.c treewide: use get_random_{u8,u16}() when possible, part 1 2022-10-11 17:42:58 -06:00
spectmgmt.c wifi: mac80211: separate out connection downgrade flags 2022-07-15 11:43:14 +02:00
sta_info.c net: Remove the obsolte u64_stats_fetch_*_irq() users (net). 2022-10-28 20:13:54 -07:00
sta_info.h wifi: mac80211: recalc station aggregate data during link switch 2022-10-07 15:23:45 +02:00
status.c wifi: mac80211: don't start TX with fq->lock to fix deadlock 2022-09-27 10:29:04 +02:00
tdls.c wifi: mac80211: Drop support for TX push path 2022-10-10 11:06:14 +02:00
tkip.c mac80211: Fix TKIP replay protection immediately after key setup 2020-01-15 09:52:12 +01:00
tkip.h Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-07-08 20:57:08 -07:00
trace_msg.h mac80211: tracing: Use the new __vstring() helper 2022-07-24 19:11:17 -04:00
trace.c
trace.h wifi: mac80211: remove link_id parameter from link_info_changed() 2022-07-15 11:43:20 +02:00
tx.c wifi: mac80211: add support for restricting netdev features per vif 2022-12-01 15:09:10 +01:00
util.c wireless-next patches for v6.2 2022-10-28 18:31:40 -07:00
vht.c wifi: mac80211: keep A-MSDU data in sta and per-link 2022-09-06 10:17:08 +02:00
wep.c mac80211: make ieee80211_wep_init() return void 2020-02-07 12:40:34 +01:00
wep.h mac80211: make ieee80211_wep_init() return void 2020-02-07 12:40:34 +01:00
wme.c wifi: mac80211: Drop support for TX push path 2022-10-10 11:06:14 +02:00
wme.h wifi: mac80211: Drop support for TX push path 2022-10-10 11:06:14 +02:00
wpa.c wifi: use struct_group to copy addresses 2022-09-03 16:40:06 +02:00
wpa.h wifi: mac80211: remove cipher scheme support 2022-06-10 15:35:53 +02:00