kernel_optimize_test/net/mac80211
Andrey Ryabinin 68920c9732 net/mac80211/debugfs.c: prevent build failure with CONFIG_UBSAN=y
With upcoming CONFIG_UBSAN the following BUILD_BUG_ON in
net/mac80211/debugfs.c starts to trigger:

  BUILD_BUG_ON(hw_flag_names[NUM_IEEE80211_HW_FLAGS] != (void *)0x1);

It seems, that compiler instrumentation causes some code
deoptimizations.  Because of that GCC is not being able to resolve
condition in BUILD_BUG_ON() at compile time.

We could make size of hw_flag_names array unspecified and replace the
condition in BUILD_BUG_ON() with following:

  ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS

That will have the same effect as before (adding new flag without
updating array will trigger build failure) except it doesn't fail with
CONFIG_UBSAN.  As a bonus this patch slightly decreases size of
hw_flag_names array.

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-20 17:09:18 -08:00
..
aes_ccm.c
aes_ccm.h
aes_cmac.c
aes_cmac.h
aes_gcm.c
aes_gcm.h
aes_gmac.c
aes_gmac.h
agg-rx.c
agg-tx.c mac80211: always set the buf_size in AddBA req to 64 2015-11-20 11:39:40 +01:00
cfg.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-17 22:08:28 -05:00
chan.c
debug.h
debugfs_key.c
debugfs_key.h
debugfs_netdev.c
debugfs_netdev.h
debugfs_sta.c
debugfs_sta.h
debugfs.c net/mac80211/debugfs.c: prevent build failure with CONFIG_UBSAN=y 2016-01-20 17:09:18 -08:00
debugfs.h
driver-ops.c mac80211: document sleep requirements for channel context ops 2015-11-03 11:15:48 +01:00
driver-ops.h mac80211: document sleep requirements for channel context ops 2015-11-03 11:15:48 +01:00
ethtool.c
ht.c
ibss.c mac80211: Allow a STA to join an IBSS with 80+80 MHz channel 2015-12-04 14:43:32 +01:00
ieee80211_i.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-17 22:08:28 -05:00
iface.c mac80211: don't teardown sdata on sdata stop 2015-12-02 22:27:27 +01:00
Kconfig
key.c mac80211: add atomic uploaded keys iterator 2015-12-04 14:43:32 +01:00
key.h
led.c
led.h
main.c mac80211: rewrite remain-on-channel logic 2015-12-04 14:43:32 +01:00
Makefile
mesh_hwmp.c
mesh_pathtbl.c mac80211: mesh: print MAC address instead of pointer 2015-12-04 14:43:32 +01:00
mesh_plink.c mac80211: fix crash on mesh local link ID generation with VIFs 2015-11-03 10:43:40 +01:00
mesh_ps.c
mesh_sync.c
mesh.c mac80211: TDLS: add proper HT-oper IE 2015-11-03 10:42:47 +01:00
mesh.h
michael.c
michael.h
mlme.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-17 22:08:28 -05:00
ocb.c
offchannel.c mac80211: handle HW ROC expired properly 2015-12-07 11:06:37 +01:00
pm.c mac80211: don't reconfigure sched scan in case of wowlan 2015-11-03 10:42:05 +01:00
rate.c mac80211: further improve "no supported rates" warning 2015-11-03 10:56:42 +01:00
rate.h
rc80211_minstrel_debugfs.c
rc80211_minstrel_ht_debugfs.c
rc80211_minstrel_ht.c
rc80211_minstrel_ht.h
rc80211_minstrel.c
rc80211_minstrel.h
rx.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-17 22:08:28 -05:00
scan.c mac80211: do not actively scan DFS channels 2015-12-02 22:27:53 +01:00
spectmgmt.c
sta_info.c mac80211: add atomic uploaded keys iterator 2015-12-04 14:43:32 +01:00
sta_info.h mac80211: add atomic uploaded keys iterator 2015-12-04 14:43:32 +01:00
status.c
tdls.c mac80211: TDLS: add proper HT-oper IE 2015-11-03 10:42:47 +01:00
tkip.c
tkip.h
trace_msg.h
trace.c
trace.h mac80211: allow the driver to send EOSP when needed 2015-12-04 14:43:32 +01:00
tx.c mac80211: properly free TX skbs when monitor TX fails 2015-12-04 14:43:32 +01:00
util.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-17 22:08:28 -05:00
vht.c mac80211: handle width changes from opmode notification IE in beacon 2015-12-15 13:16:47 +01:00
wep.c
wep.h
wme.c
wme.h
wpa.c
wpa.h