From cd900f0cacd7601dabdd028e8cbdbf2a7041cee2 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Thu, 2 Jan 2020 19:58:46 -0800 Subject: crypto: aead - pass instance to crypto_grab_aead() Initializing a crypto_aead_spawn currently requires: 1. Set spawn->base.inst to point to the instance. 2. Call crypto_grab_aead(). But there's no reason for these steps to be separate, and in fact this unneeded complication has caused at least one bug, the one fixed by commit 6db43410179b ("crypto: adiantum - initialize crypto_spawn::inst") So just make crypto_grab_aead() take the instance as an argument. To keep the function calls from getting too unwieldy due to this extra argument, also introduce a 'mask' variable into the affected places which weren't already using one. Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu --- crypto/ccm.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'crypto/ccm.c') diff --git a/crypto/ccm.c b/crypto/ccm.c index 4414f0ddfe5a..48766e81b933 100644 --- a/crypto/ccm.c +++ b/crypto/ccm.c @@ -734,6 +734,7 @@ static int crypto_rfc4309_create(struct crypto_template *tmpl, struct rtattr **tb) { struct crypto_attr_type *algt; + u32 mask; struct aead_instance *inst; struct crypto_aead_spawn *spawn; struct aead_alg *alg; @@ -747,6 +748,8 @@ static int crypto_rfc4309_create(struct crypto_template *tmpl, if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask) return -EINVAL; + mask = crypto_requires_sync(algt->type, algt->mask); + ccm_name = crypto_attr_alg_name(tb[1]); if (IS_ERR(ccm_name)) return PTR_ERR(ccm_name); @@ -756,9 +759,8 @@ static int crypto_rfc4309_create(struct crypto_template *tmpl, return -ENOMEM; spawn = aead_instance_ctx(inst); - crypto_set_aead_spawn(spawn, aead_crypto_instance(inst)); - err = crypto_grab_aead(spawn, ccm_name, 0, - crypto_requires_sync(algt->type, algt->mask)); + err = crypto_grab_aead(spawn, aead_crypto_instance(inst), + ccm_name, 0, mask); if (err) goto out_free_inst; -- cgit v1.2.3