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From:   Corentin Labbe <clabbe@baylibre.com>
To:     davem@davemloft.net, ebiggers@kernel.org,
        herbert@gondor.apana.org.au, nhorman@tuxdriver.com
Cc:     linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
        Corentin Labbe <clabbe@baylibre.com>
Subject: [PATCH v3 08/10] crypto: crypto_user_stat: remove intermediate variable
Date:   Tue, 20 Nov 2018 12:32:24 +0000
Message-Id: <1542717146-34917-9-git-send-email-clabbe@baylibre.com>
In-Reply-To: <1542717146-34917-1-git-send-email-clabbe@baylibre.com>
References: <1542717146-34917-1-git-send-email-clabbe@baylibre.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

The use of the v64 intermediate variable is useless, and removing it
bring to much readable code.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
 crypto/crypto_user_stat.c | 132 ++++++++++++--------------------------
 1 file changed, 41 insertions(+), 91 deletions(-)

diff --git a/crypto/crypto_user_stat.c b/crypto/crypto_user_stat.c
index 838123758423..7b668c659122 100644
--- a/crypto/crypto_user_stat.c
+++ b/crypto/crypto_user_stat.c
@@ -34,22 +34,16 @@ struct crypto_dump_info {
 static int crypto_report_aead(struct sk_buff *skb, struct crypto_alg *alg)
 {
 	struct crypto_stat_aead raead;
-	u64 v64;
 
 	memset(&raead, 0, sizeof(raead));
 
 	strscpy(raead.type, "aead", sizeof(raead.type));
 
-	v64 = atomic64_read(&alg->encrypt_cnt);
-	raead.stat_encrypt_cnt = v64;
-	v64 = atomic64_read(&alg->encrypt_tlen);
-	raead.stat_encrypt_tlen = v64;
-	v64 = atomic64_read(&alg->decrypt_cnt);
-	raead.stat_decrypt_cnt = v64;
-	v64 = atomic64_read(&alg->decrypt_tlen);
-	raead.stat_decrypt_tlen = v64;
-	v64 = atomic64_read(&alg->aead_err_cnt);
-	raead.stat_aead_err_cnt = v64;
+	raead.stat_encrypt_cnt = atomic64_read(&alg->encrypt_cnt);
+	raead.stat_encrypt_tlen = atomic64_read(&alg->encrypt_tlen);
+	raead.stat_decrypt_cnt = atomic64_read(&alg->decrypt_cnt);
+	raead.stat_decrypt_tlen = atomic64_read(&alg->decrypt_tlen);
+	raead.stat_aead_err_cnt = atomic64_read(&alg->aead_err_cnt);
 
 	return nla_put(skb, CRYPTOCFGA_STAT_AEAD, sizeof(raead), &raead);
 }
@@ -57,22 +51,16 @@ static int crypto_report_aead(struct sk_buff *skb, struct crypto_alg *alg)
 static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg)
 {
 	struct crypto_stat_cipher rcipher;
-	u64 v64;
 
 	memset(&rcipher, 0, sizeof(rcipher));
 
 	strscpy(rcipher.type, "cipher", sizeof(rcipher.type));
 
-	v64 = atomic64_read(&alg->encrypt_cnt);
-	rcipher.stat_encrypt_cnt = v64;
-	v64 = atomic64_read(&alg->encrypt_tlen);
-	rcipher.stat_encrypt_tlen = v64;
-	v64 = atomic64_read(&alg->decrypt_cnt);
-	rcipher.stat_decrypt_cnt = v64;
-	v64 = atomic64_read(&alg->decrypt_tlen);
-	rcipher.stat_decrypt_tlen = v64;
-	v64 = atomic64_read(&alg->cipher_err_cnt);
-	rcipher.stat_cipher_err_cnt = v64;
+	rcipher.stat_encrypt_cnt = atomic64_read(&alg->encrypt_cnt);
+	rcipher.stat_encrypt_tlen = atomic64_read(&alg->encrypt_tlen);
+	rcipher.stat_decrypt_cnt =  atomic64_read(&alg->decrypt_cnt);
+	rcipher.stat_decrypt_tlen = atomic64_read(&alg->decrypt_tlen);
+	rcipher.stat_cipher_err_cnt =  atomic64_read(&alg->cipher_err_cnt);
 
 	return nla_put(skb, CRYPTOCFGA_STAT_CIPHER, sizeof(rcipher), &rcipher);
 }
@@ -80,21 +68,15 @@ static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg)
 static int crypto_report_comp(struct sk_buff *skb, struct crypto_alg *alg)
 {
 	struct crypto_stat_compress rcomp;
-	u64 v64;
 
 	memset(&rcomp, 0, sizeof(rcomp));
 
 	strscpy(rcomp.type, "compression", sizeof(rcomp.type));
-	v64 = atomic64_read(&alg->compress_cnt);
-	rcomp.stat_compress_cnt = v64;
-	v64 = atomic64_read(&alg->compress_tlen);
-	rcomp.stat_compress_tlen = v64;
-	v64 = atomic64_read(&alg->decompress_cnt);
-	rcomp.stat_decompress_cnt = v64;
-	v64 = atomic64_read(&alg->decompress_tlen);
-	rcomp.stat_decompress_tlen = v64;
-	v64 = atomic64_read(&alg->compress_err_cnt);
-	rcomp.stat_compress_err_cnt = v64;
+	rcomp.stat_compress_cnt = atomic64_read(&alg->compress_cnt);
+	rcomp.stat_compress_tlen = atomic64_read(&alg->compress_tlen);
+	rcomp.stat_decompress_cnt = atomic64_read(&alg->decompress_cnt);
+	rcomp.stat_decompress_tlen = atomic64_read(&alg->decompress_tlen);
+	rcomp.stat_compress_err_cnt = atomic64_read(&alg->compress_err_cnt);
 
 	return nla_put(skb, CRYPTOCFGA_STAT_COMPRESS, sizeof(rcomp), &rcomp);
 }
@@ -102,21 +84,15 @@ static int crypto_report_comp(struct sk_buff *skb, struct crypto_alg *alg)
 static int crypto_report_acomp(struct sk_buff *skb, struct crypto_alg *alg)
 {
 	struct crypto_stat_compress racomp;
-	u64 v64;
 
 	memset(&racomp, 0, sizeof(racomp));
 
 	strscpy(racomp.type, "acomp", sizeof(racomp.type));
-	v64 = atomic64_read(&alg->compress_cnt);
-	racomp.stat_compress_cnt = v64;
-	v64 = atomic64_read(&alg->compress_tlen);
-	racomp.stat_compress_tlen = v64;
-	v64 = atomic64_read(&alg->decompress_cnt);
-	racomp.stat_decompress_cnt = v64;
-	v64 = atomic64_read(&alg->decompress_tlen);
-	racomp.stat_decompress_tlen = v64;
-	v64 = atomic64_read(&alg->compress_err_cnt);
-	racomp.stat_compress_err_cnt = v64;
+	racomp.stat_compress_cnt = atomic64_read(&alg->compress_cnt);
+	racomp.stat_compress_tlen = atomic64_read(&alg->compress_tlen);
+	racomp.stat_decompress_cnt =  atomic64_read(&alg->decompress_cnt);
+	racomp.stat_decompress_tlen = atomic64_read(&alg->decompress_tlen);
+	racomp.stat_compress_err_cnt = atomic64_read(&alg->compress_err_cnt);
 
 	return nla_put(skb, CRYPTOCFGA_STAT_ACOMP, sizeof(racomp), &racomp);
 }
@@ -124,25 +100,17 @@ static int crypto_report_acomp(struct sk_buff *skb, struct crypto_alg *alg)
 static int crypto_report_akcipher(struct sk_buff *skb, struct crypto_alg *alg)
 {
 	struct crypto_stat_akcipher rakcipher;
-	u64 v64;
 
 	memset(&rakcipher, 0, sizeof(rakcipher));
 
 	strscpy(rakcipher.type, "akcipher", sizeof(rakcipher.type));
-	v64 = atomic64_read(&alg->encrypt_cnt);
-	rakcipher.stat_encrypt_cnt = v64;
-	v64 = atomic64_read(&alg->encrypt_tlen);
-	rakcipher.stat_encrypt_tlen = v64;
-	v64 = atomic64_read(&alg->decrypt_cnt);
-	rakcipher.stat_decrypt_cnt = v64;
-	v64 = atomic64_read(&alg->decrypt_tlen);
-	rakcipher.stat_decrypt_tlen = v64;
-	v64 = atomic64_read(&alg->sign_cnt);
-	rakcipher.stat_sign_cnt = v64;
-	v64 = atomic64_read(&alg->verify_cnt);
-	rakcipher.stat_verify_cnt = v64;
-	v64 = atomic64_read(&alg->akcipher_err_cnt);
-	rakcipher.stat_akcipher_err_cnt = v64;
+	rakcipher.stat_encrypt_cnt = atomic64_read(&alg->encrypt_cnt);
+	rakcipher.stat_encrypt_tlen = atomic64_read(&alg->encrypt_tlen);
+	rakcipher.stat_decrypt_cnt = atomic64_read(&alg->decrypt_cnt);
+	rakcipher.stat_decrypt_tlen = atomic64_read(&alg->decrypt_tlen);
+	rakcipher.stat_sign_cnt = atomic64_read(&alg->sign_cnt);
+	rakcipher.stat_verify_cnt = atomic64_read(&alg->verify_cnt);
+	rakcipher.stat_akcipher_err_cnt = atomic64_read(&alg->akcipher_err_cnt);
 
 	return nla_put(skb, CRYPTOCFGA_STAT_AKCIPHER,
 		       sizeof(rakcipher), &rakcipher);
@@ -151,20 +119,15 @@ static int crypto_report_akcipher(struct sk_buff *skb, struct crypto_alg *alg)
 static int crypto_report_kpp(struct sk_buff *skb, struct crypto_alg *alg)
 {
 	struct crypto_stat_kpp rkpp;
-	u64 v;
 
 	memset(&rkpp, 0, sizeof(rkpp));
 
 	strscpy(rkpp.type, "kpp", sizeof(rkpp.type));
 
-	v = atomic64_read(&alg->setsecret_cnt);
-	rkpp.stat_setsecret_cnt = v;
-	v = atomic64_read(&alg->generate_public_key_cnt);
-	rkpp.stat_generate_public_key_cnt = v;
-	v = atomic64_read(&alg->compute_shared_secret_cnt);
-	rkpp.stat_compute_shared_secret_cnt = v;
-	v = atomic64_read(&alg->kpp_err_cnt);
-	rkpp.stat_kpp_err_cnt = v;
+	rkpp.stat_setsecret_cnt = atomic64_read(&alg->setsecret_cnt);
+	rkpp.stat_generate_public_key_cnt = atomic64_read(&alg->generate_public_key_cnt);
+	rkpp.stat_compute_shared_secret_cnt = atomic64_read(&alg->compute_shared_secret_cnt);
+	rkpp.stat_kpp_err_cnt = atomic64_read(&alg->kpp_err_cnt);
 
 	return nla_put(skb, CRYPTOCFGA_STAT_KPP, sizeof(rkpp), &rkpp);
 }
@@ -172,18 +135,14 @@ static int crypto_report_kpp(struct sk_buff *skb, struct crypto_alg *alg)
 static int crypto_report_ahash(struct sk_buff *skb, struct crypto_alg *alg)
 {
 	struct crypto_stat_hash rhash;
-	u64 v64;
 
 	memset(&rhash, 0, sizeof(rhash));
 
 	strscpy(rhash.type, "ahash", sizeof(rhash.type));
 
-	v64 = atomic64_read(&alg->hash_cnt);
-	rhash.stat_hash_cnt = v64;
-	v64 = atomic64_read(&alg->hash_tlen);
-	rhash.stat_hash_tlen = v64;
-	v64 = atomic64_read(&alg->hash_err_cnt);
-	rhash.stat_hash_err_cnt = v64;
+	rhash.stat_hash_cnt = atomic64_read(&alg->hash_cnt);
+	rhash.stat_hash_tlen = atomic64_read(&alg->hash_tlen);
+	rhash.stat_hash_err_cnt = atomic64_read(&alg->hash_err_cnt);
 
 	return nla_put(skb, CRYPTOCFGA_STAT_HASH, sizeof(rhash), &rhash);
 }
@@ -191,18 +150,14 @@ static int crypto_report_ahash(struct sk_buff *skb, struct crypto_alg *alg)
 static int crypto_report_shash(struct sk_buff *skb, struct crypto_alg *alg)
 {
 	struct crypto_stat_hash rhash;
-	u64 v64;
 
 	memset(&rhash, 0, sizeof(rhash));
 
 	strscpy(rhash.type, "shash", sizeof(rhash.type));
 
-	v64 = atomic64_read(&alg->hash_cnt);
-	rhash.stat_hash_cnt = v64;
-	v64 = atomic64_read(&alg->hash_tlen);
-	rhash.stat_hash_tlen = v64;
-	v64 = atomic64_read(&alg->hash_err_cnt);
-	rhash.stat_hash_err_cnt = v64;
+	rhash.stat_hash_cnt =  atomic64_read(&alg->hash_cnt);
+	rhash.stat_hash_tlen = atomic64_read(&alg->hash_tlen);
+	rhash.stat_hash_err_cnt = atomic64_read(&alg->hash_err_cnt);
 
 	return nla_put(skb, CRYPTOCFGA_STAT_HASH, sizeof(rhash), &rhash);
 }
@@ -210,20 +165,15 @@ static int crypto_report_shash(struct sk_buff *skb, struct crypto_alg *alg)
 static int crypto_report_rng(struct sk_buff *skb, struct crypto_alg *alg)
 {
 	struct crypto_stat_rng rrng;
-	u64 v64;
 
 	memset(&rrng, 0, sizeof(rrng));
 
 	strscpy(rrng.type, "rng", sizeof(rrng.type));
 
-	v64 = atomic64_read(&alg->generate_cnt);
-	rrng.stat_generate_cnt = v64;
-	v64 = atomic64_read(&alg->generate_tlen);
-	rrng.stat_generate_tlen = v64;
-	v64 = atomic64_read(&alg->seed_cnt);
-	rrng.stat_seed_cnt = v64;
-	v64 = atomic64_read(&alg->rng_err_cnt);
-	rrng.stat_rng_err_cnt = v64;
+	rrng.stat_generate_cnt = atomic64_read(&alg->generate_cnt);
+	rrng.stat_generate_tlen = atomic64_read(&alg->generate_tlen);
+	rrng.stat_seed_cnt = atomic64_read(&alg->seed_cnt);
+	rrng.stat_rng_err_cnt = atomic64_read(&alg->rng_err_cnt);
 
 	return nla_put(skb, CRYPTOCFGA_STAT_RNG, sizeof(rrng), &rrng);
 }
-- 
2.18.1