From 5a35316d97914d56d6be8b3748b2437785e74790 Mon Sep 17 00:00:00 2001 From: "Hook, Gary" Date: Tue, 25 Jun 2019 23:43:43 +0000 Subject: [PATCH] crypto: doc - Add parameter documentation Fill in missing parameter descriptions for the compression algorithm, then pick them up to document for the compression_alg structure. Signed-off-by: Gary R Hook Signed-off-by: Herbert Xu --- Documentation/crypto/api-skcipher.rst | 2 +- include/linux/crypto.h | 11 +++++++++++ 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/Documentation/crypto/api-skcipher.rst b/Documentation/crypto/api-skcipher.rst index 4eec4a93f7e3..20ba08dddf2e 100644 --- a/Documentation/crypto/api-skcipher.rst +++ b/Documentation/crypto/api-skcipher.rst @@ -5,7 +5,7 @@ Block Cipher Algorithm Definitions :doc: Block Cipher Algorithm Definitions .. kernel-doc:: include/linux/crypto.h - :functions: crypto_alg ablkcipher_alg blkcipher_alg cipher_alg + :functions: crypto_alg ablkcipher_alg blkcipher_alg cipher_alg compress_alg Symmetric Key Cipher API ------------------------ diff --git a/include/linux/crypto.h b/include/linux/crypto.h index 311237b1dab0..4b4e2ffbee74 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -327,6 +327,17 @@ struct cipher_alg { void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); }; +/** + * struct compress_alg - compression/decompression algorithm + * @coa_compress: Compress a buffer of specified length, storing the resulting + * data in the specified buffer. Return the length of the + * compressed data in dlen. + * @coa_decompress: Decompress the source buffer, storing the uncompressed + * data in the specified buffer. The length of the data is + * returned in dlen. + * + * All fields are mandatory. + */ struct compress_alg { int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src, unsigned int slen, u8 *dst, unsigned int *dlen);