SCTP: Fix build issues with SCTP AUTH.

SCTP-AUTH requires selection of CRYPTO, HMAC and SHA1 since
SHA1 is a MUST requirement for AUTH.  We also support SHA256,
but that's optional, so fix the code to treat it as such.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index 6d89e35307aa..97e6ebd14500 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -54,11 +54,13 @@ static struct sctp_hmac sctp_hmac_list[SCTP_AUTH_NUM_HMACS] = {
                 /* id 2 is reserved as well */
                 .hmac_id = SCTP_AUTH_HMAC_ID_RESERVED_2,
         },
+#if defined (CONFIG_CRYPTO_SHA256) || defined (CONFIG_CRYPTO_SHA256_MODULE)
         {
                 .hmac_id = SCTP_AUTH_HMAC_ID_SHA256,
                 .hmac_name="hmac(sha256)",
                 .hmac_len = SCTP_SHA256_SIG_SIZE,
         }
+#endif
 };