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[2/7] crypto: api - Add reqsize to crypto_alg

Message ID 658b1db49fa1968d6e88fc178b8e5c757971f13c.1744021074.git.herbert@gondor.apana.org.au (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show
Series crypto: Add reqsize to crypto_alg | expand

Commit Message

Herbert Xu April 7, 2025, 10:20 a.m. UTC 
Add a reqsize field to crypto_alg with the intention of replacing
the type-specific reqsize field currently used by ahash and acomp.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 include/linux/crypto.h | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 56cf229e2530..15476b085ce3 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -276,6 +276,7 @@  struct cipher_alg {
  *		   to the alignmask of the algorithm being used, in order to
  *		   avoid the API having to realign them.  Note: the alignmask is
  *		   not supported for hash algorithms and is always 0 for them.
+ * @cra_reqsize: Size of the request context for this algorithm.
  * @cra_priority: Priority of this transformation implementation. In case
  *		  multiple transformations with same @cra_name are available to
  *		  the Crypto API, the kernel will use the one with highest
@@ -322,6 +323,7 @@  struct crypto_alg {
 	unsigned int cra_blocksize;
 	unsigned int cra_ctxsize;
 	unsigned int cra_alignmask;
+	unsigned int cra_reqsize;
 
 	int cra_priority;
 	refcount_t cra_refcnt;
@@ -441,6 +443,11 @@  static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm)
 	return tfm->__crt_alg->cra_alignmask;
 }
 
+static inline unsigned int crypto_tfm_alg_reqsize(struct crypto_tfm *tfm)
+{
+	return tfm->__crt_alg->cra_reqsize;
+}
+
 static inline u32 crypto_tfm_get_flags(struct crypto_tfm *tfm)
 {
 	return tfm->crt_flags;