lib80211: use crypto API ccm(aes) transform for CCMP processing
authorArd Biesheuvel <ard.biesheuvel@linaro.org>
Mon, 17 Jun 2019 09:19:01 +0000 (11:19 +0200)
committerJohannes Berg <johannes.berg@intel.com>
Fri, 26 Jul 2019 11:22:47 +0000 (13:22 +0200)
commita11e2f85481c2f08b55c06467445602a2330ee5b
treeafe4709be560fe33d5d5c76ef3a0e9be7032943e
parent612fcfd9b31f08858d2a2e1279adda367e1ade00
lib80211: use crypto API ccm(aes) transform for CCMP processing

Instead of open coding the CCM aead mode in the driver, and invoking
the AES block cipher block by block, use a ccm(aes) aead transform
which already encapsulates this functionality. This is a cleaner use
of the crypto API, and permits optimized implementations to be used,
which are typically much faster and deal more efficiently with the
SIMD register file, which usually needs to be preserved/restored in
order to use special AES instructions.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Link: https://lore.kernel.org/r/20190617091901.7063-1-ard.biesheuvel@linaro.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
net/wireless/Kconfig
net/wireless/lib80211_crypt_ccmp.c