WSL2-Linux-Kernel/drivers/staging/ks7010
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
..
Kconfig Revert "staging: ks7010: Fix build error" 2019-06-24 16:45:34 +08:00
Makefile staging: add missing SPDX lines to Makefile files 2019-04-03 11:10:15 +02:00
TODO staging: ks7010: remove me from CC list 2020-05-05 12:36:04 +02:00
eap_packet.h staging: ks7010: remove not used definition WPA_CAPABILITY_PREAUTH 2018-05-14 14:07:05 +02:00
ks7010_sdio.c staging: ks7010: remove line over 80 characters 2020-03-10 10:15:23 +01:00
ks_hostif.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
ks_hostif.h staging: Replace zero-length array with flexible-array member 2020-02-23 19:18:54 +01:00
ks_wlan.h staging: ks7010: Remove unused define 2018-05-15 09:31:38 +02:00
ks_wlan_ioctl.h staging: ks7010: add SPDX identifiers to all files 2018-05-06 18:58:36 -07:00
ks_wlan_net.c staging: ks7010: Use fallthrough pseudo-keyword 2020-07-28 10:18:52 +02:00