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crypto: virtio - Drop superfluous ctx->tfm backpointer

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struct virtio_crypto_[as]kcipher_ctx contains a backpointer to struct
crypto_[as]kcipher which is superfluous in two ways:

First, it's not used anywhere.  Second, the context is embedded into
struct crypto_tfm, so one could just use container_of() to get from the
context to crypto_tfm and from there to crypto_[as]kcipher.

Drop the superfluous backpointer.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Lukas Wunner 2025-02-03 14:37:03 +01:00 • committed by Herbert Xu
parent 17410baf65
commit aefeca1188
2 changed files with 0 additions and 9 deletions
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5
drivers/crypto/virtio/virtio_crypto_akcipher_algs.c
View file

@ -26,7 +26,6 @@ struct virtio_crypto_rsa_ctx {
struct virtio_crypto_akcipher_ctx { struct virtio_crypto_akcipher_ctx {
struct virtio_crypto *vcrypto; struct virtio_crypto *vcrypto;
struct crypto_akcipher *tfm;
bool session_valid; bool session_valid;
__u64 session_id; __u64 session_id;
union { union {
@ -447,10 +446,6 @@ static unsigned int virtio_crypto_rsa_max_size(struct crypto_akcipher *tfm)
static int virtio_crypto_rsa_init_tfm(struct crypto_akcipher *tfm) static int virtio_crypto_rsa_init_tfm(struct crypto_akcipher *tfm)
{ {
struct virtio_crypto_akcipher_ctx *ctx = akcipher_tfm_ctx(tfm);
ctx->tfm = tfm;
akcipher_set_reqsize(tfm, akcipher_set_reqsize(tfm,
sizeof(struct virtio_crypto_akcipher_request)); sizeof(struct virtio_crypto_akcipher_request));

4
drivers/crypto/virtio/virtio_crypto_skcipher_algs.c
View file

@ -17,7 +17,6 @@
struct virtio_crypto_skcipher_ctx { struct virtio_crypto_skcipher_ctx {
struct virtio_crypto *vcrypto; struct virtio_crypto *vcrypto;
struct crypto_skcipher *tfm;
struct virtio_crypto_sym_session_info enc_sess_info; struct virtio_crypto_sym_session_info enc_sess_info;
struct virtio_crypto_sym_session_info dec_sess_info; struct virtio_crypto_sym_session_info dec_sess_info;
@ -515,10 +514,7 @@ static int virtio_crypto_skcipher_decrypt(struct skcipher_request *req)
static int virtio_crypto_skcipher_init(struct crypto_skcipher *tfm) static int virtio_crypto_skcipher_init(struct crypto_skcipher *tfm)
{ {
struct virtio_crypto_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
crypto_skcipher_set_reqsize(tfm, sizeof(struct virtio_crypto_sym_request)); crypto_skcipher_set_reqsize(tfm, sizeof(struct virtio_crypto_sym_request));
ctx->tfm = tfm;
return 0; return 0;
} }