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Subject[patch 0/7] kzfree() v2
This series introduces kzfree() and converts callsites which do
memset() + kzfree() explicitely.

The caller intention is to ensure that security-sensitive data are
cleared from slab objects before they are passed back to the
allocator.

This also removes the last modular ksize() user (crypto/api.c) again
by converting it to kzfree() which figures out the length of the
memory region to zero internally.

I left out drivers/w1/w1{,_int}.c and dropped the conversion of
drivers/atm/mpoa_caches.c in this iteration as I think they don't
strictly need the zeroeing and the memsetting should probably be
removed [ added Chas Williams and Evgeniy Polyakov to Cc ].

v2:
- EXPORT_SYMBOL(kzfree), thanks linker
- remove superfluous NULL checks, thanks Pekka
- mention `security' in the description

Hannes

arch/s390/crypto/prng.c | 3 +--
crypto/api.c | 5 +----
drivers/md/dm-crypt.c | 6 ++----
drivers/s390/crypto/zcrypt_pcixcc.c | 3 +--
drivers/usb/host/hwa-hc.c | 3 +--
drivers/usb/wusbcore/cbaf.c | 3 +--
fs/cifs/connect.c | 6 +-----
fs/cifs/misc.c | 10 ++--------
fs/ecryptfs/keystore.c | 3 +--
fs/ecryptfs/messaging.c | 3 +--
include/linux/slab.h | 1 +
mm/util.c | 20 ++++++++++++++++++++
12 files changed, 33 insertions(+), 33 deletions(-)



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