From 332d314e25825a5dd6548664d427bfac49409af1 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Fri, 29 Nov 2019 10:23:04 -0800 Subject: crypto: skcipher - remove crypto_skcipher::keysize Due to the removal of the blkcipher and ablkcipher algorithm types, crypto_skcipher::keysize is now redundant since it always equals crypto_skcipher_alg(tfm)->max_keysize. Remove it and update crypto_skcipher_default_keysize() accordingly. Also rename crypto_skcipher_default_keysize() to crypto_skcipher_max_keysize() to clarify that it specifically returns the maximum key size, not some unspecified "default". Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu --- crypto/skcipher.c | 3 +-- crypto/testmgr.c | 10 ++++++---- 2 files changed, 7 insertions(+), 6 deletions(-) (limited to 'crypto') diff --git a/crypto/skcipher.c b/crypto/skcipher.c index 7d2e722e..6cfafd80 100644 --- a/crypto/skcipher.c +++ b/crypto/skcipher.c @@ -585,7 +585,7 @@ static unsigned int crypto_skcipher_extsize(struct crypto_alg *alg) static void skcipher_set_needkey(struct crypto_skcipher *tfm) { - if (tfm->keysize) + if (crypto_skcipher_max_keysize(tfm) != 0) crypto_skcipher_set_flags(tfm, CRYPTO_TFM_NEED_KEY); } @@ -686,7 +686,6 @@ static int crypto_skcipher_init_tfm(struct crypto_tfm *tfm) skcipher->setkey = skcipher_setkey; skcipher->encrypt = alg->encrypt; skcipher->decrypt = alg->decrypt; - skcipher->keysize = alg->max_keysize; skcipher_set_needkey(skcipher); diff --git a/crypto/testmgr.c b/crypto/testmgr.c index 82513b6b..85d720a5 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -2647,7 +2647,7 @@ static void generate_random_cipher_testvec(struct skcipher_request *req, char *name, size_t max_namelen) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); - const unsigned int maxkeysize = tfm->keysize; + const unsigned int maxkeysize = crypto_skcipher_max_keysize(tfm); const unsigned int ivsize = crypto_skcipher_ivsize(tfm); struct scatterlist src, dst; u8 iv[MAX_IVLEN]; @@ -2693,6 +2693,7 @@ static int test_skcipher_vs_generic_impl(const char *driver, struct cipher_test_sglists *tsgls) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + const unsigned int maxkeysize = crypto_skcipher_max_keysize(tfm); const unsigned int ivsize = crypto_skcipher_ivsize(tfm); const unsigned int blocksize = crypto_skcipher_blocksize(tfm); const unsigned int maxdatasize = (2 * PAGE_SIZE) - TESTMGR_POISON_LEN; @@ -2751,9 +2752,10 @@ static int test_skcipher_vs_generic_impl(const char *driver, /* Check the algorithm properties for consistency. */ - if (tfm->keysize != generic_tfm->keysize) { + if (maxkeysize != crypto_skcipher_max_keysize(generic_tfm)) { pr_err("alg: skcipher: max keysize for %s (%u) doesn't match generic impl (%u)\n", - driver, tfm->keysize, generic_tfm->keysize); + driver, maxkeysize, + crypto_skcipher_max_keysize(generic_tfm)); err = -EINVAL; goto out; } @@ -2778,7 +2780,7 @@ static int test_skcipher_vs_generic_impl(const char *driver, * the other implementation against them. */ - vec.key = kmalloc(tfm->keysize, GFP_KERNEL); + vec.key = kmalloc(maxkeysize, GFP_KERNEL); vec.iv = kmalloc(ivsize, GFP_KERNEL); vec.ptext = kmalloc(maxdatasize, GFP_KERNEL); vec.ctext = kmalloc(maxdatasize, GFP_KERNEL); -- cgit v1.2.3