X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fnet%2Fpppoe.c;h=68631a5721ac1046774450c168be665808dd9cd5;hb=5f08e46b621a769e52a9545a23ab1d5fb2aec1d4;hp=6f98834e6ace29bc892b54f63a03aa6ed799fd70;hpb=a205752d1ad2d37d6597aaae5a56fc396a770868;p=linux-2.6

diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index 6f98834e6a..68631a5721 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -108,19 +108,24 @@ static inline int cmp_addr(struct pppoe_addr *a, unsigned long sid, char *addr)
 		(memcmp(a->remote,addr,ETH_ALEN) == 0));
 }
 
-static int hash_item(unsigned long sid, unsigned char *addr)
+#if 8%PPPOE_HASH_BITS
+#error 8 must be a multiple of PPPOE_HASH_BITS
+#endif
+
+static int hash_item(unsigned int sid, unsigned char *addr)
 {
-	char hash = 0;
-	int i, j;
+	unsigned char hash = 0;
+	unsigned int i;
 
-	for (i = 0; i < ETH_ALEN ; ++i) {
-		for (j = 0; j < 8/PPPOE_HASH_BITS ; ++j) {
-			hash ^= addr[i] >> ( j * PPPOE_HASH_BITS );
-		}
+	for (i = 0 ; i < ETH_ALEN ; i++) {
+		hash ^= addr[i];
+	}
+	for (i = 0 ; i < sizeof(sid_t)*8 ; i += 8 ){
+		hash ^= sid>>i;
+	}
+	for (i = 8 ; (i>>=1) >= PPPOE_HASH_BITS ; ) {
+		hash ^= hash>>i;
 	}
-
-	for (i = 0; i < (sizeof(unsigned long)*8) / PPPOE_HASH_BITS ; ++i)
-		hash ^= sid >> (i*PPPOE_HASH_BITS);
 
 	return hash & ( PPPOE_HASH_SIZE - 1 );
 }
@@ -664,8 +669,8 @@ static int pppoe_ioctl(struct socket *sock, unsigned int cmd,
 {
 	struct sock *sk = sock->sk;
 	struct pppox_sock *po = pppox_sk(sk);
-	int val = 0;
-	int err = 0;
+	int val;
+	int err;
 
 	switch (cmd) {
 	case PPPIOCGMRU:
@@ -754,8 +759,9 @@ static int pppoe_ioctl(struct socket *sock, unsigned int cmd,
 		err = 0;
 		break;
 
-	default:;
-	};
+	default:
+		err = -ENOTTY;
+	}
 
 	return err;
 }
@@ -773,6 +779,7 @@ static int pppoe_sendmsg(struct kiocb *iocb, struct socket *sock,
 	struct net_device *dev;
 	char *start;
 
+	lock_sock(sk);
 	if (sock_flag(sk, SOCK_DEAD) || !(sk->sk_state & PPPOX_CONNECTED)) {
 		error = -ENOTCONN;
 		goto end;
@@ -783,8 +790,6 @@ static int pppoe_sendmsg(struct kiocb *iocb, struct socket *sock,
 	hdr.code = 0;
 	hdr.sid = po->num;
 
-	lock_sock(sk);
-
 	dev = po->pppoe_dev;
 
 	error = -EMSGSIZE;