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Message-Id: <20190710060614.6155-1-natechancellor@gmail.com>
Date: Tue, 9 Jul 2019 23:06:15 -0700
From: Nathan Chancellor <natechancellor@...il.com>
To: Saeed Mahameed <saeedm@...lanox.com>,
Leon Romanovsky <leon@...nel.org>
Cc: "David S. Miller" <davem@...emloft.net>,
Boris Pismenny <borisp@...lanox.com>, netdev@...r.kernel.org,
linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
clang-built-linux@...glegroups.com,
Nathan Chancellor <natechancellor@...il.com>,
Nick Desaulniers <ndesaulniers@...gle.com>
Subject: [PATCH net-next v3] net/mlx5e: Convert single case statement switch statements into if statements
During the review of commit 1ff2f0fa450e ("net/mlx5e: Return in default
case statement in tx_post_resync_params"), Leon and Nick pointed out
that the switch statements can be converted to single if statements
that return early so that the code is easier to follow.
Suggested-by: Leon Romanovsky <leon@...nel.org>
Suggested-by: Nick Desaulniers <ndesaulniers@...gle.com>
Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
---
v1 -> v2:
* Refactor switch statements into if statements
v2 -> v3:
* Rebase on net-next after v1 was already applied, patch just refactors
switch statements to if statements.
.../mellanox/mlx5/core/en_accel/ktls_tx.c | 34 ++++++-------------
1 file changed, 11 insertions(+), 23 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
index 5c08891806f0..ea032f54197e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
@@ -25,23 +25,17 @@ static void
fill_static_params_ctx(void *ctx, struct mlx5e_ktls_offload_context_tx *priv_tx)
{
struct tls_crypto_info *crypto_info = priv_tx->crypto_info;
+ struct tls12_crypto_info_aes_gcm_128 *info;
char *initial_rn, *gcm_iv;
u16 salt_sz, rec_seq_sz;
char *salt, *rec_seq;
u8 tls_version;
- switch (crypto_info->cipher_type) {
- case TLS_CIPHER_AES_GCM_128: {
- struct tls12_crypto_info_aes_gcm_128 *info =
- (struct tls12_crypto_info_aes_gcm_128 *)crypto_info;
-
- EXTRACT_INFO_FIELDS;
- break;
- }
- default:
- WARN_ON(1);
+ if (WARN_ON(crypto_info->cipher_type != TLS_CIPHER_AES_GCM_128))
return;
- }
+
+ info = (struct tls12_crypto_info_aes_gcm_128 *)crypto_info;
+ EXTRACT_INFO_FIELDS;
gcm_iv = MLX5_ADDR_OF(tls_static_params, ctx, gcm_iv);
initial_rn = MLX5_ADDR_OF(tls_static_params, ctx, initial_record_number);
@@ -234,24 +228,18 @@ tx_post_resync_params(struct mlx5e_txqsq *sq,
u64 rcd_sn)
{
struct tls_crypto_info *crypto_info = priv_tx->crypto_info;
+ struct tls12_crypto_info_aes_gcm_128 *info;
__be64 rn_be = cpu_to_be64(rcd_sn);
bool skip_static_post;
u16 rec_seq_sz;
char *rec_seq;
- switch (crypto_info->cipher_type) {
- case TLS_CIPHER_AES_GCM_128: {
- struct tls12_crypto_info_aes_gcm_128 *info =
- (struct tls12_crypto_info_aes_gcm_128 *)crypto_info;
-
- rec_seq = info->rec_seq;
- rec_seq_sz = sizeof(info->rec_seq);
- break;
- }
- default:
- WARN_ON(1);
+ if (WARN_ON(crypto_info->cipher_type != TLS_CIPHER_AES_GCM_128))
return;
- }
+
+ info = (struct tls12_crypto_info_aes_gcm_128 *)crypto_info;
+ rec_seq = info->rec_seq;
+ rec_seq_sz = sizeof(info->rec_seq);
skip_static_post = !memcmp(rec_seq, &rn_be, rec_seq_sz);
if (!skip_static_post)
--
2.22.0
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