[LLC]: Kill llc_station_mac_sa symbol export.

[cascardo/linux.git] / net / ipv6 / ipcomp6.c

diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 0cd4056..e3dcfa2 100644 (file)
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -64,6 +64,7 @@ static LIST_HEAD(ipcomp6_tfms_list);
 
 static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
 {
+       int nexthdr;
        int err = -ENOMEM;
        struct ip_comp_hdr *ipch;
        int plen, dlen;
@@ -79,6 +80,8 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
 
        /* Remove ipcomp header and decompress original payload */
        ipch = (void *)skb->data;
+       nexthdr = ipch->nexthdr;
+
        skb->transport_header = skb->network_header + sizeof(*ipch);
        __skb_pull(skb, sizeof(*ipch));
 
@@ -108,7 +111,7 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
        skb->truesize += dlen - plen;
        __skb_put(skb, dlen - plen);
        skb_copy_to_linear_data(skb, scratch, dlen);
-       err = ipch->nexthdr;
+       err = nexthdr;
 
 out_put_cpu:
        put_cpu();
@@ -143,7 +146,9 @@ static int ipcomp6_output(struct xfrm_state *x, struct sk_buff *skb)
        scratch = *per_cpu_ptr(ipcomp6_scratches, cpu);
        tfm = *per_cpu_ptr(ipcd->tfms, cpu);
 
+       local_bh_disable();
        err = crypto_comp_compress(tfm, start, plen, scratch, &dlen);
+       local_bh_enable();
        if (err || (dlen + sizeof(*ipch)) >= plen) {
                put_cpu();
                goto out_ok;
@@ -190,7 +195,6 @@ static void ipcomp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 static struct xfrm_state *ipcomp6_tunnel_create(struct xfrm_state *x)
 {
        struct xfrm_state *t = NULL;
-       u8 mode = XFRM_MODE_TUNNEL;
 
        t = xfrm_state_alloc();
        if (!t)
@@ -204,9 +208,7 @@ static struct xfrm_state *ipcomp6_tunnel_create(struct xfrm_state *x)
        memcpy(t->id.daddr.a6, x->id.daddr.a6, sizeof(struct in6_addr));
        memcpy(&t->sel, &x->sel, sizeof(t->sel));
        t->props.family = AF_INET6;
-       if (x->props.mode == XFRM_MODE_BEET)
-               mode = x->props.mode;
-       t->props.mode = mode;
+       t->props.mode = x->props.mode;
        memcpy(t->props.saddr.a6, x->props.saddr.a6, sizeof(struct in6_addr));
 
        if (xfrm_init_state(t))
@@ -405,22 +407,22 @@ static int ipcomp6_init_state(struct xfrm_state *x)
        if (x->encap)
                goto out;
 
-       err = -ENOMEM;
-       ipcd = kzalloc(sizeof(*ipcd), GFP_KERNEL);
-       if (!ipcd)
-               goto out;
-
        x->props.header_len = 0;
        switch (x->props.mode) {
-       case XFRM_MODE_BEET:
        case XFRM_MODE_TRANSPORT:
                break;
        case XFRM_MODE_TUNNEL:
                x->props.header_len += sizeof(struct ipv6hdr);
+               break;
        default:
-               goto error;
+               goto out;
        }
 
+       err = -ENOMEM;
+       ipcd = kzalloc(sizeof(*ipcd), GFP_KERNEL);
+       if (!ipcd)
+               goto out;
+
        mutex_lock(&ipcomp6_resource_mutex);
        if (!ipcomp6_alloc_scratches())
                goto error;
@@ -453,7 +455,7 @@ error:
        goto out;
 }
 
-static struct xfrm_type ipcomp6_type =
+static const struct xfrm_type ipcomp6_type =
 {
        .description    = "IPCOMP6",
        .owner          = THIS_MODULE,