Signed-off-by: Changli Gao <xiaosuo@xxxxxxxxx>
----
include/linux/netfilter.h | 2 +-
net/netfilter/core.c | 8 ++++----
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index 89341c3..9dc919b 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -243,7 +243,7 @@ int compat_nf_getsockopt(struct sock *sk, u_int8_t pf, int optval,
/* Call this before modifying an existing packet: ensures it is
modifiable and linear to the point you care about (writable_len).
Returns true or false. */
-extern int skb_make_writable(struct sk_buff *skb, unsigned int writable_len);
+extern bool skb_make_writable(struct sk_buff *skb, unsigned int writable_len);
struct flowi;
struct nf_queue_entry;
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 78b505d..274ab8c 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -189,17 +189,17 @@ next_hook:
EXPORT_SYMBOL(nf_hook_slow);
-int skb_make_writable(struct sk_buff *skb, unsigned int writable_len)
+bool skb_make_writable(struct sk_buff *skb, unsigned int writable_len)
{
if (writable_len > skb->len)
- return 0;
+ return false;
/* Not exclusive use of packet? Must copy. */
if (!skb_cloned(skb)) {
if (writable_len <= skb_headlen(skb))
- return 1;
+ return true;
} else if (skb_clone_writable(skb, writable_len))
- return 1;
+ return true;
if (writable_len <= skb_headlen(skb))
writable_len = 0;
--
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