* [PATCH] crypto: atmel-ecc - drop dead code in atmel_ecdh_max_size
@ 2026-06-02 22:25 Thorsten Blum
0 siblings, 0 replies; only message in thread
From: Thorsten Blum @ 2026-06-02 22:25 UTC (permalink / raw)
To: Thorsten Blum, Herbert Xu, David S. Miller, Nicolas Ferre,
Alexandre Belloni, Claudiu Beznea
Cc: linux-crypto, linux-arm-kernel, linux-kernel
atmel_ecdh_init_tfm() always allocates ctx->fallback, so it is never
NULL in atmel_ecdh_max_size(). Remove the dead code and return
crypto_kpp_maxsize() directly.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
drivers/crypto/atmel-ecc.c | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/drivers/crypto/atmel-ecc.c b/drivers/crypto/atmel-ecc.c
index 9c380351d2f9..6a1716175b30 100644
--- a/drivers/crypto/atmel-ecc.c
+++ b/drivers/crypto/atmel-ecc.c
@@ -284,15 +284,7 @@ static unsigned int atmel_ecdh_max_size(struct crypto_kpp *tfm)
{
struct atmel_ecdh_ctx *ctx = kpp_tfm_ctx(tfm);
- if (ctx->fallback)
- return crypto_kpp_maxsize(ctx->fallback);
-
- /*
- * The device only supports NIST P256 ECC keys. The public key size will
- * always be the same. Use a macro for the key size to avoid unnecessary
- * computations.
- */
- return ATMEL_ECC_PUBKEY_SIZE;
+ return crypto_kpp_maxsize(ctx->fallback);
}
static struct kpp_alg atmel_ecdh_nist_p256 = {
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