net: ipv6: Add scaffolding to change completion function signature

This patch adds temporary scaffolding so that the Crypto API
completion function can take a void * instead of crypto_async_request.
Once affected users have been converted this can be removed.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

net/ipv6/ah6.c

@@ -281,12 +281,12 @@ static int ipv6_clear_mutable_options(struct ipv6hdr *iph, int len, int dir)
 	return 0;
 }
 
-static void ah6_output_done(struct crypto_async_request *base, int err)
+static void ah6_output_done(crypto_completion_data_t *data, int err)
 {
 	int extlen;
 	u8 *iph_base;
 	u8 *icv;
-	struct sk_buff *skb = base->data;
+	struct sk_buff *skb = crypto_get_completion_data(data);
 	struct xfrm_state *x = skb_dst(skb)->xfrm;
 	struct ah_data *ahp = x->data;
 	struct ipv6hdr *top_iph = ipv6_hdr(skb);
@@ -451,12 +451,12 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
 	return err;
 }
 
-static void ah6_input_done(struct crypto_async_request *base, int err)
+static void ah6_input_done(crypto_completion_data_t *data, int err)
 {
 	u8 *auth_data;
 	u8 *icv;
 	u8 *work_iph;
-	struct sk_buff *skb = base->data;
+	struct sk_buff *skb = crypto_get_completion_data(data);
 	struct xfrm_state *x = xfrm_input_state(skb);
 	struct ah_data *ahp = x->data;
 	struct ip_auth_hdr *ah = ip_auth_hdr(skb);

net/ipv6/esp6.c

@@ -278,9 +278,9 @@ static void esp_output_encap_csum(struct sk_buff *skb)
 	}
 }
 
-static void esp_output_done(struct crypto_async_request *base, int err)
+static void esp_output_done(crypto_completion_data_t *data, int err)
 {
-	struct sk_buff *skb = base->data;
+	struct sk_buff *skb = crypto_get_completion_data(data);
 	struct xfrm_offload *xo = xfrm_offload(skb);
 	void *tmp;
 	struct xfrm_state *x;
@@ -368,12 +368,12 @@ static struct ip_esp_hdr *esp_output_set_esn(struct sk_buff *skb,
 	return esph;
 }
 
-static void esp_output_done_esn(struct crypto_async_request *base, int err)
+static void esp_output_done_esn(crypto_completion_data_t *data, int err)
 {
-	struct sk_buff *skb = base->data;
+	struct sk_buff *skb = crypto_get_completion_data(data);
 
 	esp_output_restore_header(skb);
-	esp_output_done(base, err);
+	esp_output_done(data, err);
 }
 
 static struct ip_esp_hdr *esp6_output_udp_encap(struct sk_buff *skb,
@@ -879,9 +879,9 @@ int esp6_input_done2(struct sk_buff *skb, int err)
 }
 EXPORT_SYMBOL_GPL(esp6_input_done2);
 
-static void esp_input_done(struct crypto_async_request *base, int err)
+static void esp_input_done(crypto_completion_data_t *data, int err)
 {
-	struct sk_buff *skb = base->data;
+	struct sk_buff *skb = crypto_get_completion_data(data);
 
 	xfrm_input_resume(skb, esp6_input_done2(skb, err));
 }
@@ -909,12 +909,12 @@ static void esp_input_set_header(struct sk_buff *skb, __be32 *seqhi)
 	}
 }
 
-static void esp_input_done_esn(struct crypto_async_request *base, int err)
+static void esp_input_done_esn(crypto_completion_data_t *data, int err)
 {
-	struct sk_buff *skb = base->data;
+	struct sk_buff *skb = crypto_get_completion_data(data);
 
 	esp_input_restore_header(skb);
-	esp_input_done(base, err);
+	esp_input_done(data, err);
 }
 
 static int esp6_input(struct xfrm_state *x, struct sk_buff *skb)