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Message-ID: <474F8065.2030000@cn.fujitsu.com>
Date: Fri, 30 Nov 2007 11:15:49 +0800
From: Wang Chen <wangchen@...fujitsu.com>
To: herbert@...dor.apana.org.au
CC: davem@...emloft.net, andi@...stfloor.org, netdev@...r.kernel.org,
gerrit@....abdn.ac.uk, Wang Chen <wangchen@...fujitsu.com>
Subject: [PATCH 2/3] [UDP]: Clean up for IS_UDPLITE macro
(This patch base on "PATCH 1/3".)
Since we have macro IS_UDPLITE, we can use it.
Signed-off-by: Wang Chen <wangchen@...fujitsu.com>
---
ipv4/udp.c | 19 +++++++++++--------
ipv6/udp.c | 14 ++++++++------
2 files changed, 19 insertions(+), 14 deletions(-)
diff -Nurp linux-2.6.24.rc3.org/net/ipv4/udp.c linux-2.6.24.rc3/net/ipv4/udp.c
--- linux-2.6.24.rc3.org/net/ipv4/udp.c 2007-11-30 10:07:48.000000000 +0800
+++ linux-2.6.24.rc3/net/ipv4/udp.c 2007-11-30 10:18:49.000000000 +0800
@@ -471,6 +471,7 @@ static int udp_push_pending_frames(struc
struct sk_buff *skb;
struct udphdr *uh;
int err = 0;
+ int is_udplite = IS_UDPLITE(sk);
__wsum csum = 0;
/* Grab the skbuff where UDP header space exists. */
@@ -486,7 +487,7 @@ static int udp_push_pending_frames(struc
uh->len = htons(up->len);
uh->check = 0;
- if (up->pcflag) /* UDP-Lite */
+ if (is_udplite) /* UDP-Lite */
csum = udplite_csum_outgoing(sk, skb);
else if (sk->sk_no_check == UDP_CSUM_NOXMIT) { /* UDP csum disabled */
@@ -514,7 +515,7 @@ out:
up->len = 0;
up->pending = 0;
if (!err)
- UDP_INC_STATS_USER(UDP_MIB_OUTDATAGRAMS, up->pcflag);
+ UDP_INC_STATS_USER(UDP_MIB_OUTDATAGRAMS, is_udplite);
return err;
}
@@ -531,7 +532,7 @@ int udp_sendmsg(struct kiocb *iocb, stru
__be32 daddr, faddr, saddr;
__be16 dport;
u8 tos;
- int err, is_udplite = up->pcflag;
+ int err, is_udplite = IS_UDPLITE(sk);
int corkreq = up->corkflag || msg->msg_flags&MSG_MORE;
int (*getfrag)(void *, char *, int, int, int, struct sk_buff *);
@@ -942,6 +943,7 @@ int udp_queue_rcv_skb(struct sock * sk,
{
struct udp_sock *up = udp_sk(sk);
int rc;
+ int is_udplite = IS_UDPLITE(sk);
/*
* Charge it to the socket, dropping if the queue is full.
@@ -978,7 +980,7 @@ int udp_queue_rcv_skb(struct sock * sk,
/*
* UDP-Lite specific tests, ignored on UDP sockets
*/
- if ((up->pcflag & UDPLITE_RECV_CC) && UDP_SKB_CB(skb)->partial_cov) {
+ if ((is_udplite & UDPLITE_RECV_CC) && UDP_SKB_CB(skb)->partial_cov) {
/*
* MIB statistics other than incrementing the error count are
@@ -1019,14 +1021,14 @@ int udp_queue_rcv_skb(struct sock * sk,
if ((rc = sock_queue_rcv_skb(sk,skb)) < 0) {
/* Note that an ENOMEM error is charged twice */
if (rc == -ENOMEM)
- UDP_INC_STATS_BH(UDP_MIB_RCVBUFERRORS, up->pcflag);
+ UDP_INC_STATS_BH(UDP_MIB_RCVBUFERRORS, is_udplite);
goto drop;
}
return 0;
drop:
- UDP_INC_STATS_BH(UDP_MIB_INERRORS, up->pcflag);
+ UDP_INC_STATS_BH(UDP_MIB_INERRORS, is_udplite);
kfree_skb(skb);
return -1;
}
@@ -1235,6 +1237,7 @@ int udp_lib_setsockopt(struct sock *sk,
struct udp_sock *up = udp_sk(sk);
int val;
int err = 0;
+ int is_udplite = IS_UDPLITE(sk);
if (optlen<sizeof(int))
return -EINVAL;
@@ -1276,7 +1279,7 @@ int udp_lib_setsockopt(struct sock *sk,
/* The sender sets actual checksum coverage length via this option.
* The case coverage > packet length is handled by send module. */
case UDPLITE_SEND_CSCOV:
- if (!up->pcflag) /* Disable the option on UDP sockets */
+ if (!is_udplite) /* Disable the option on UDP sockets */
return -ENOPROTOOPT;
if (val != 0 && val < 8) /* Illegal coverage: use default (8) */
val = 8;
@@ -1288,7 +1291,7 @@ int udp_lib_setsockopt(struct sock *sk,
* sense, this should be set to at least 8 (as done below). If zero is
* used, this again means full checksum coverage. */
case UDPLITE_RECV_CSCOV:
- if (!up->pcflag) /* Disable the option on UDP sockets */
+ if (!is_udplite) /* Disable the option on UDP sockets */
return -ENOPROTOOPT;
if (val != 0 && val < 8) /* Avoid silly minimal values. */
val = 8;
diff -Nurp linux-2.6.24.rc3.org/net/ipv6/udp.c linux-2.6.24.rc3/net/ipv6/udp.c
--- linux-2.6.24.rc3.org/net/ipv6/udp.c 2007-11-30 10:07:48.000000000 +0800
+++ linux-2.6.24.rc3/net/ipv6/udp.c 2007-11-30 10:22:25.000000000 +0800
@@ -260,6 +260,7 @@ int udpv6_queue_rcv_skb(struct sock * sk
{
struct udp_sock *up = udp_sk(sk);
int rc;
+ int is_udplite = IS_UDPLITE(sk);
if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb))
goto drop;
@@ -267,7 +268,7 @@ int udpv6_queue_rcv_skb(struct sock * sk
/*
* UDP-Lite specific tests, ignored on UDP sockets (see net/ipv4/udp.c).
*/
- if ((up->pcflag & UDPLITE_RECV_CC) && UDP_SKB_CB(skb)->partial_cov) {
+ if ((is_udplite & UDPLITE_RECV_CC) && UDP_SKB_CB(skb)->partial_cov) {
if (up->pcrlen == 0) { /* full coverage was set */
LIMIT_NETDEBUG(KERN_WARNING "UDPLITE6: partial coverage"
@@ -291,13 +292,13 @@ int udpv6_queue_rcv_skb(struct sock * sk
if ((rc = sock_queue_rcv_skb(sk,skb)) < 0) {
/* Note that an ENOMEM error is charged twice */
if (rc == -ENOMEM)
- UDP6_INC_STATS_BH(UDP_MIB_RCVBUFERRORS, up->pcflag);
+ UDP6_INC_STATS_BH(UDP_MIB_RCVBUFERRORS, is_udplite);
goto drop;
}
return 0;
drop:
- UDP6_INC_STATS_BH(UDP_MIB_INERRORS, up->pcflag);
+ UDP6_INC_STATS_BH(UDP_MIB_INERRORS, is_udplite);
kfree_skb(skb);
return -1;
}
@@ -525,6 +526,7 @@ static int udp_v6_push_pending_frames(st
struct inet_sock *inet = inet_sk(sk);
struct flowi *fl = &inet->cork.fl;
int err = 0;
+ int is_udplite = IS_UDPLITE(sk);
__wsum csum = 0;
/* Grab the skbuff where UDP header space exists. */
@@ -540,7 +542,7 @@ static int udp_v6_push_pending_frames(st
uh->len = htons(up->len);
uh->check = 0;
- if (up->pcflag)
+ if (is_udplite)
csum = udplite_csum_outgoing(sk, skb);
else
csum = udp_csum_outgoing(sk, skb);
@@ -556,7 +558,7 @@ out:
up->len = 0;
up->pending = 0;
if (!err)
- UDP6_INC_STATS_USER(UDP_MIB_OUTDATAGRAMS, up->pcflag);
+ UDP6_INC_STATS_USER(UDP_MIB_OUTDATAGRAMS, is_udplite);
return err;
}
@@ -580,7 +582,7 @@ int udpv6_sendmsg(struct kiocb *iocb, st
int corkreq = up->corkflag || msg->msg_flags&MSG_MORE;
int err;
int connected = 0;
- int is_udplite = up->pcflag;
+ int is_udplite = IS_UDPLITE(sk);
int (*getfrag)(void *, char *, int, int, int, struct sk_buff *);
/* destination address check */
-
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