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net/mlx5e: Convert single case statement switch statements into if statements 

During the review of commit 1ff2f0fa45 ("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@kernel.org>
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nathan Chancellor 2019-07-09 23:06:15 -07:00 committed by David S. Miller
parent 3194d6adfe
commit 9db7e618fc
1 changed files with 11 additions and 23 deletions
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34
drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
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@ -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)