netdev - [PATCH 6/17] net: ipv6: Add scaffolding to change completion function signature

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Date:   Mon, 06 Feb 2023 18:22:23 +0800
From:   "Herbert Xu" <herbert@...dor.apana.org.au>
To:     Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...nel.org>, dm-devel@...hat.com,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        Tyler Hicks <code@...icks.com>, ecryptfs@...r.kernel.org,
        Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        linux-bluetooth@...r.kernel.org,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Jon Maloy <jmaloy@...hat.com>,
        Ying Xue <ying.xue@...driver.com>,
        Boris Pismenny <borisp@...dia.com>,
        John Fastabend <john.fastabend@...il.com>,
        David Howells <dhowells@...hat.com>,
        Jarkko Sakkinen <jarkko@...nel.org>, keyrings@...r.kernel.org
Subject: [PATCH 6/17] 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@...dor.apana.org.au>
---

 net/ipv6/ah6.c  |    8 ++++----
 net/ipv6/esp6.c |   20 ++++++++++----------
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 5228d2716289..e43735578a76 100644
--- a/net/ipv6/ah6.c
+++ b/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);
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 14ed868680c6..b9ee81c7dfcf 100644
--- a/net/ipv6/esp6.c
+++ b/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)