linux-kernel - [PATCH] crypto: ecc - Add comment to ecc_digits_from

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Message-ID: <20240607223417.587821-1-stefanb@linux.ibm.com>
Date: Fri,  7 Jun 2024 18:34:17 -0400
From: Stefan Berger <stefanb@...ux.ibm.com>
To: keyrings@...r.kernel.org, linux-crypto@...r.kernel.org,
        herbert@...dor.apana.org.au, davem@...emloft.net
Cc: linux-kernel@...r.kernel.org, jarkko@...nel.org,
        Stefan Berger <stefanb@...ux.ibm.com>
Subject: [PATCH] crypto: ecc - Add comment to ecc_digits_from_bytes about input byte array

Add comment to ecc_digits_from_bytes kdoc that the first byte is expected
to hold the most significant bits of the large integer that is converted
into an array of digits.

Signed-off-by: Stefan Berger <stefanb@...ux.ibm.com>
---
 include/crypto/internal/ecc.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/crypto/internal/ecc.h b/include/crypto/internal/ecc.h
index f7e75e1e71f3..0717a53ae732 100644
--- a/include/crypto/internal/ecc.h
+++ b/include/crypto/internal/ecc.h
@@ -63,6 +63,9 @@ static inline void ecc_swap_digits(const void *in, u64 *out, unsigned int ndigit
  * @nbytes    Size of input byte array
  * @out       Output digits array
  * @ndigits:  Number of digits to create from byte array
+ *
+ * The first byte in the input byte array is expected to hold the most
+ * significant bits of the large integer.
  */
 void ecc_digits_from_bytes(const u8 *in, unsigned int nbytes,
 			   u64 *out, unsigned int ndigits);
-- 
2.43.0