kernel_optimize_test/net/mac80211
Waiman Long 453431a549 mm, treewide: rename kzfree() to kfree_sensitive()
As said by Linus:

  A symmetric naming is only helpful if it implies symmetries in use.
  Otherwise it's actively misleading.

  In "kzalloc()", the z is meaningful and an important part of what the
  caller wants.

  In "kzfree()", the z is actively detrimental, because maybe in the
  future we really _might_ want to use that "memfill(0xdeadbeef)" or
  something. The "zero" part of the interface isn't even _relevant_.

The main reason that kzfree() exists is to clear sensitive information
that should not be leaked to other future users of the same memory
objects.

Rename kzfree() to kfree_sensitive() to follow the example of the recently
added kvfree_sensitive() and make the intention of the API more explicit.
In addition, memzero_explicit() is used to clear the memory to make sure
that it won't get optimized away by the compiler.

The renaming is done by using the command sequence:

  git grep -w --name-only kzfree |\
  xargs sed -i 's/kzfree/kfree_sensitive/'

followed by some editing of the kfree_sensitive() kerneldoc and adding
a kzfree backward compatibility macro in slab.h.

[akpm@linux-foundation.org: fs/crypto/inline_crypt.c needs linux/slab.h]
[akpm@linux-foundation.org: fix fs/crypto/inline_crypt.c some more]

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Joe Perches <joe@perches.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: "Jason A . Donenfeld" <Jason@zx2c4.com>
Link: http://lkml.kernel.org/r/20200616154311.12314-3-longman@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-07 11:33:22 -07:00
..
aead_api.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
aead_api.h
aes_ccm.h
aes_cmac.c mac80211: Update BIP to support Beacon frames 2020-02-24 10:36:03 +01:00
aes_cmac.h
aes_gcm.h
aes_gmac.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
aes_gmac.h
agg-rx.c mac8211: fix struct initialisation 2020-08-03 10:55:17 +02:00
agg-tx.c mac80211: accept aggregation sessions on 6 GHz 2020-05-31 11:27:16 +02:00
airtime.c mac80211: improve AQL tx airtime estimation 2020-07-31 09:24:24 +02:00
cfg.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
chan.c mac80211: Use fallthrough pseudo-keyword 2020-07-31 09:24:23 +02:00
debug.h
debugfs_key.c mac80211: Support BIGTK configuration for Beacon protection 2020-02-24 10:35:57 +01:00
debugfs_key.h mac80211: Support BIGTK configuration for Beacon protection 2020-02-24 10:35:57 +01:00
debugfs_netdev.c cfg80211/mac80211: add connected to auth server to meshconf 2020-07-31 09:24:24 +02:00
debugfs_netdev.h
debugfs_sta.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2020-03-29 21:25:29 -07:00
debugfs_sta.h
debugfs.c
debugfs.h
driver-ops.c
driver-ops.h mac80211: warn only once in check_sdata_in_driver() at each caller 2020-07-31 09:27:02 +02:00
ethtool.c
fils_aead.c
fils_aead.h
he.c mac80211: use HE 6 GHz band capability and pass it to the driver 2020-05-31 11:27:03 +02:00
ht.c mac80211: Use fallthrough pseudo-keyword 2020-07-31 09:24:23 +02:00
ibss.c mac80211: Use fallthrough pseudo-keyword 2020-07-31 09:24:23 +02:00
ieee80211_i.h mac80211: add a function for running rx without passing skbs to the stack 2020-07-31 09:27:01 +02:00
iface.c mac80211: parse radiotap header when selecting Tx queue 2020-07-31 09:27:01 +02:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
key.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
key.h mac80211: Support BIGTK configuration for Beacon protection 2020-02-24 10:35:57 +01:00
led.c
led.h
main.c mac80211: support control port TX status reporting 2020-05-28 09:02:14 +02:00
Makefile
mesh_hwmp.c cfg80211/mac80211: add mesh_param "mesh_nolearn" to skip path discovery 2020-07-31 09:24:23 +02:00
mesh_pathtbl.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
mesh_plink.c mac80211: Use fallthrough pseudo-keyword 2020-07-31 09:24:23 +02:00
mesh_ps.c
mesh_sync.c
mesh.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
mesh.h mac80211: add HE 6 GHz Band Capability element 2020-05-31 11:26:39 +02:00
michael.c
michael.h
mlme.c mac80211: Do not report beacon loss if beacon filtering enabled 2020-08-03 13:02:06 +02:00
ocb.c
offchannel.c mac80211: remove unused flags argument in transmit functions 2020-07-31 09:27:01 +02:00
pm.c
rate.c mac80211: populate debugfs only after cfg80211 init 2020-04-24 11:30:13 +02:00
rate.h mac80211: populate debugfs only after cfg80211 init 2020-04-24 11:30:13 +02:00
rc80211_minstrel_debugfs.c
rc80211_minstrel_ht_debugfs.c
rc80211_minstrel_ht.c One batch of changes, containing: 2020-05-26 20:17:35 -07:00
rc80211_minstrel_ht.h
rc80211_minstrel.c
rc80211_minstrel.h
rx.c mac80211: add a function for running rx without passing skbs to the stack 2020-07-31 09:27:01 +02:00
scan.c mac80211: remove unused flags argument in transmit functions 2020-07-31 09:27:01 +02:00
spectmgmt.c mac80211: avoid using ext NSS high BW if not supported 2020-05-31 11:26:50 +02:00
sta_info.c mac80211: fix misplaced while instead of if 2020-08-03 11:03:14 +02:00
sta_info.h cfg80211/mac80211: add connected to auth server to station info 2020-07-31 09:24:24 +02:00
status.c mac80211: remove the need for variable rates_idx 2020-07-31 09:24:22 +02:00
tdls.c mac80211: Use fallthrough pseudo-keyword 2020-07-31 09:24:23 +02:00
tkip.c
tkip.h
trace_msg.h
trace.c
trace.h mac80211: use eth_zero_addr() to clear mac address 2020-08-03 10:56:04 +02:00
tx.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
util.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
vht.c mac80211: implement Operating Mode Notification extended NSS support 2020-04-24 12:33:42 +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 mac80211: Use fallthrough pseudo-keyword 2020-07-31 09:24:23 +02:00
wme.h
wpa.c
wpa.h