A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-24 21:54:34 -04:00
Code Issues Projects Releases Packages Wiki Activity

[UDP]: Allow users to configure UDP-Lite.

Browse source 
Let's give users an option for disabling UDP-Lite (~4K).

old:
|    text	   data	    bss	    dec	    hex	filename
|  286498	  12432	   6072	 305002	  4a76a	net/ipv4/built-in.o
|  193830	   8192	   3204	 205226	  321aa	net/ipv6/ipv6.o

new (without UDP-Lite):
|    text	   data	    bss	    dec	    hex	filename
|  284086	  12136	   5432	 301654	  49a56	net/ipv4/built-in.o
|  191835	   7832	   3076	 202743	  317f7	net/ipv6/ipv6.o

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
This commit is contained in:
YOSHIFUJI Hideaki 2008-03-01 01:06:47 +09:00
commit e898d4db27
14 changed files with 99 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

5
include/net/ipv6.h
View file

@ -603,8 +603,13 @@ extern int tcp6_proc_init(void);
extern void tcp6_proc_exit(void);
extern int udp6_proc_init(void);
extern void udp6_proc_exit(void);
#ifdef CONFIG_IP_UDPLITE
extern int udplite6_proc_init(void);
extern void udplite6_proc_exit(void);
#else
static inline int udplite6_proc_init(void) { return 0; }
static inline void udplite6_proc_exit(void) { }
#endif
extern int ipv6_misc_proc_init(void);
extern void ipv6_misc_proc_exit(void);
extern int snmp6_register_dev(struct inet6_dev *idev);

5
include/net/transp_v6.h
View file

@ -27,8 +27,13 @@ extern int rawv6_init(void);
extern void rawv6_exit(void);
extern int udpv6_init(void);
extern void udpv6_exit(void);
#ifdef CONFIG_IP_UDPLITE
extern int udplitev6_init(void);
extern void udplitev6_exit(void);
#else
static inline int udplitev6_init(void) { return 0; }
static inline void udplitev6_exit(void) { }
#endif
extern int tcpv6_init(void);
extern void tcpv6_exit(void);

9
include/net/udplite.h
View file

@ -25,7 +25,9 @@ static __inline__ int udplite_getfrag(void *from, char *to, int offset,
/* Designate sk as UDP-Lite socket */
static inline int udplite_sk_init(struct sock *sk)
{
#ifdef CONFIG_IP_UDPLITE
udp_sk(sk)->pcflag = UDPLITE_BIT;
#endif
return 0;
}
@ -69,7 +71,7 @@ static inline int udplite_checksum_init(struct sk_buff *skb, struct udphdr *uh)
static inline int udplite_sender_cscov(struct udp_sock *up, struct udphdr *uh)
{
int cscov = up->len;
#ifdef CONFIG_IP_UDPLITE
/*
* Sender has set `partial coverage' option on UDP-Lite socket
*/
@ -93,13 +95,15 @@ static inline int udplite_sender_cscov(struct udp_sock *up, struct udphdr *uh)
* illegal, we fall back to the defaults here.
*/
}
#endif
return cscov;
}
static inline __wsum udplite_csum_outgoing(struct sock *sk, struct sk_buff *skb)
{
int cscov = udplite_sender_cscov(udp_sk(sk), udp_hdr(skb));
__wsum csum = 0;
#ifdef CONFIG_IP_UDPLITE
int cscov = udplite_sender_cscov(udp_sk(sk), udp_hdr(skb));
skb->ip_summed = CHECKSUM_NONE; /* no HW support for checksumming */
@ -112,6 +116,7 @@ static inline __wsum udplite_csum_outgoing(struct sock *sk, struct sk_buff *skb)
if ((cscov -= len) <= 0)
break;
}
#endif
return csum;
}