lz4's decompression doesn't requires any scratch buffer so
it doesn't need tfm context. Hence, it can support
crypto compression noctx API and this patch implements it.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
---
crypto/lz4.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/crypto/lz4.c b/crypto/lz4.c
index d38ce2a..589fa251 100644
--- a/crypto/lz4.c
+++ b/crypto/lz4.c
@@ -76,6 +76,12 @@ static int lz4_decompress_crypto(struct crypto_tfm *tfm, const u8 *src,
return err;
}
+static int lz4_decompress_noctx(const u8 *src, unsigned int slen,
+ u8 *dst, unsigned int *dlen)
+{
+ return lz4_decompress_crypto(NULL, src, slen, dst, dlen);
+}
+
static struct crypto_alg alg_lz4 = {
.cra_name = "lz4",
.cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
@@ -87,7 +93,7 @@ static struct crypto_alg alg_lz4 = {
.cra_u = { .compress = {
.coa_compress = lz4_compress_crypto,
.coa_decompress = lz4_decompress_crypto,
- .coa_decompress_noctx = NULL } }
+ .coa_decompress_noctx = lz4_decompress_noctx } }
};
static int __init lz4_mod_init(void)
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-crypto" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
