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crypto: x86/ghash - Use proper helpers to clone request

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Rather than copying a request by hand with memcpy, use the correct
API helpers to setup the new request.  This will matter once the
API helpers start setting up chained requests as a simple memcpy
will break chaining.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu committed 2025-02-22 16:00:03 +08:00
1 parent 075db21426
commit f407764621
1 file changed
+17 -6
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arch/x86/crypto/ghash-clmulni-intel_glue.c
+17 -6
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@@ -189,6 +189,20 @@ static int ghash_async_init(struct ahash_request *req)
return crypto_shash_init(desc);
}
static void ghash_init_cryptd_req(struct ahash_request *req)
{
struct ahash_request *cryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
ahash_request_set_callback(cryptd_req, req->base.flags,
req->base.complete, req->base.data);
ahash_request_set_crypt(cryptd_req, req->src, req->result,
req->nbytes);
}
static int ghash_async_update(struct ahash_request *req)
{
struct ahash_request *cryptd_req = ahash_request_ctx(req);
@@ -198,8 +212,7 @@ static int ghash_async_update(struct ahash_request *req)
if (!crypto_simd_usable() ||
(in_atomic() && cryptd_ahash_queued(cryptd_tfm))) {
memcpy(cryptd_req, req, sizeof(*req));
ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
ghash_init_cryptd_req(req);
return crypto_ahash_update(cryptd_req);
} else {
struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
@@ -216,8 +229,7 @@ static int ghash_async_final(struct ahash_request *req)
if (!crypto_simd_usable() ||
(in_atomic() && cryptd_ahash_queued(cryptd_tfm))) {
memcpy(cryptd_req, req, sizeof(*req));
ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
ghash_init_cryptd_req(req);
return crypto_ahash_final(cryptd_req);
} else {
struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
@@ -257,8 +269,7 @@ static int ghash_async_digest(struct ahash_request *req)
if (!crypto_simd_usable() ||
(in_atomic() && cryptd_ahash_queued(cryptd_tfm))) {
memcpy(cryptd_req, req, sizeof(*req));
ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
ghash_init_cryptd_req(req);
return crypto_ahash_digest(cryptd_req);
} else {
struct shash_desc *desc = cryptd_shash_desc(cryptd_req);