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 <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/Documentation/crypto/api-skcipher.rst b/Documentation/crypto/api-skcipher.rst
index 4eec4a9..20ba08d 100644
--- a/Documentation/crypto/api-skcipher.rst
+++ b/Documentation/crypto/api-skcipher.rst
@@ -5,7 +5,7 @@
: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 311237b..4b4e2ff 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -327,6 +327,17 @@
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);