Many users of kernel async. crypto services have a pattern of starting an async. crypto op and than using a completion to wait for it to end, resulting of the same code repeating itself in multiple places, sometime with errors. This patch aims to introduce a generic "wait for async. crypto op to complete" functions and move all the users I could find to use it. This gets rid of almost 300 lines of code and fixes at least one bug (hopefully without adding new ones). In some cases (indicated in the specific patch description) the move to the generic function changes the semantics slightly (such as dropping interruptible when waiting). I am especially interested in feedback whether people think this is OK or I should an interruptible variant. The patch set was boot tested on x86_64 and arm64 which at the very least tests the crypto users via testmgr but I am less confident regarding some of the other users and would love feedback. Signed-off-by: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx> Gilad Ben-Yossef (10): crypto: factor async completion for general use crypto: move pub key to generic async completion crypto: move drbg to generic async completion crypto: move gcm to generic async completion crypto: move testmgr to generic async completion dm: move dm-verity to generic async completion fscrypt: move to generic async completion cifs: move to generic async completion ima: move to generic async completion crypto: adapt api sample to use async. op wait Documentation/crypto/api-samples.rst | 52 ++-------- crypto/af_alg.c | 27 ----- crypto/algif_aead.c | 14 +-- crypto/algif_hash.c | 30 +++--- crypto/algif_skcipher.c | 10 +- crypto/api.c | 28 ++++++ crypto/asymmetric_keys/public_key.c | 28 +----- crypto/drbg.c | 35 ++----- crypto/gcm.c | 34 ++----- crypto/testmgr.c | 184 +++++++++++------------------------ drivers/md/dm-verity-target.c | 81 ++++----------- drivers/md/dm-verity.h | 5 - fs/cifs/smb2ops.c | 30 +----- fs/crypto/crypto.c | 28 +----- fs/crypto/fname.c | 36 ++----- fs/crypto/fscrypt_private.h | 10 -- fs/crypto/keyinfo.c | 21 +--- include/crypto/drbg.h | 3 +- include/crypto/if_alg.h | 14 --- include/linux/crypto.h | 28 ++++++ security/integrity/ima/ima_crypto.c | 56 ++++------- 21 files changed, 222 insertions(+), 532 deletions(-) -- 2.1.4
