linux_dsm_epyc7002/net/tipc
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
..
addr.c
addr.h
bcast.c tipc: update a binding service via broadcast 2020-06-17 08:53:34 -07:00
bcast.h tipc: update a binding service via broadcast 2020-06-17 08:53:34 -07:00
bearer.c net: tipc: kerneldoc fixes 2020-07-13 17:20:40 -07:00
bearer.h tipc: introduce variable window congestion control 2019-12-10 17:31:15 -08:00
core.c tipc: fix ordering of tipc module init and exit routine 2019-12-06 12:01:09 -08:00
core.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-16 21:51:42 -08:00
crypto.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
crypto.h tipc: introduce TIPC encryption & authentication 2019-11-08 14:01:59 -08:00
diag.c
discover.c net: tipc: kerneldoc fixes 2020-07-13 17:20:40 -07:00
discover.h
eth_media.c tipc: Use is_broadcast_ether_addr() instead of memcmp() 2020-08-03 16:21:46 -07:00
group.c
group.h
ib_media.c tipc: introduce variable window congestion control 2019-12-10 17:31:15 -08:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
link.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-25 17:49:04 -07:00
link.h tipc: add support for broadcast rcv stats dumping 2020-05-26 15:16:52 -07:00
Makefile tipc: remove meaningless assignment in Makefile 2020-01-08 12:38:54 -08:00
monitor.c tipc: add NULL pointer check to prevent kernel oops 2020-03-15 00:07:00 -07:00
monitor.h tipc: update mon's self addr when node addr generated 2019-11-12 19:45:45 -08:00
msg.c net: tipc: kerneldoc fixes 2020-07-13 17:20:40 -07:00
msg.h tipc: Use struct_size() helper 2020-06-19 20:15:25 -07:00
name_distr.c tipc: update a binding service via broadcast 2020-06-17 08:53:34 -07:00
name_distr.h tipc: update a binding service via broadcast 2020-06-17 08:53:34 -07:00
name_table.c tipc: update a binding service via broadcast 2020-06-17 08:53:34 -07:00
name_table.h tipc: update a binding service via broadcast 2020-06-17 08:53:34 -07:00
net.c tipc: make legacy address flag readable over netlink 2019-12-20 21:18:42 -08:00
net.h tipc: make legacy address flag readable over netlink 2019-12-20 21:18:42 -08:00
netlink_compat.c tipc: eliminate KMSAN: uninit-value in __tipc_nl_compat_dumpit error 2020-01-06 13:24:31 -08:00
netlink.c tipc: add support for broadcast rcv stats dumping 2020-05-26 15:16:52 -07:00
netlink.h
node.c net: tipc: kerneldoc fixes 2020-07-13 17:20:40 -07:00
node.h tipc: update a binding service via broadcast 2020-06-17 08:53:34 -07:00
socket.c net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
socket.h tipc: call tsk_set_importance from tipc_topsrv_create_listener 2020-05-28 11:11:46 -07:00
subscr.c
subscr.h tipc: fix failed service subscription deletion 2020-05-13 12:33:19 -07:00
sysctl.c tipc: enable broadcast retrans via unicast 2020-05-26 15:16:52 -07:00
topsrv.c tipc: call tsk_set_importance from tipc_topsrv_create_listener 2020-05-28 11:11:46 -07:00
topsrv.h
trace.c
trace.h tipc: add support for broadcast rcv stats dumping 2020-05-26 15:16:52 -07:00
udp_media.c tipc: set ub->ifindex for local ipv6 address 2020-08-05 12:19:52 -07:00
udp_media.h