linux-kernel - [PATCH 1/3] crypto: doc - Add parameter documentation

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Date:   Mon, 24 Jun 2019 19:07:42 +0000
From:   "Hook, Gary" <Gary.Hook@....com>
To:     "herbert@...dor.apana.org.au" <herbert@...dor.apana.org.au>,
        "corbet@....net" <corbet@....net>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>
Subject: [PATCH 1/3] crypto: doc - Add parameter documentation

Fill in missing parameter descriptions for the ompression algorithm,
then pick them up to document for the compression_alg structure.

Signed-off-by: Gary R Hook <gary.hook@....com>
---
 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);