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ip: stash a pointer to msghdr in struct ping_fakehdr 

... instead of storing its ->mgs_iter.iov there

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-11-27 20:34:16 -05:00
parent 2e90b1c45e
commit cacdc7d2f9
3 changed files with 5 additions and 7 deletions
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2
include/net/ping.h
View File

@ -59,7 +59,7 @@ extern struct pingv6_ops pingv6_ops;
struct pingfakehdr {
struct icmphdr icmph;
struct iovec *iov;
struct msghdr *msg;
sa_family_t family;
__wsum wcheck;
};

7
net/ipv4/ping.c
View File

@ -602,14 +602,14 @@ int ping_getfrag(void *from, char *to,
if (fraglen < sizeof(struct icmphdr))
BUG();
if (csum_partial_copy_fromiovecend(to + sizeof(struct icmphdr),
pfh->iov, 0, fraglen - sizeof(struct icmphdr),
pfh->msg->msg_iter.iov, 0, fraglen - sizeof(struct icmphdr),
&pfh->wcheck))
return -EFAULT;
} else if (offset < sizeof(struct icmphdr)) {
BUG();
} else {
if (csum_partial_copy_fromiovecend
(to, pfh->iov, offset - sizeof(struct icmphdr),
(to, pfh->msg->msg_iter.iov, offset - sizeof(struct icmphdr),
fraglen, &pfh->wcheck))
return -EFAULT;
}
@ -811,8 +811,7 @@ back_from_confirm:
pfh.icmph.checksum = 0;
pfh.icmph.un.echo.id = inet->inet_sport;
pfh.icmph.un.echo.sequence = user_icmph.un.echo.sequence;
/* XXX: stripping const */
pfh.iov = (struct iovec *)msg->msg_iter.iov;
pfh.msg = msg;
pfh.wcheck = 0;
pfh.family = AF_INET;

3
net/ipv6/ping.c
View File

@ -163,8 +163,7 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
pfh.icmph.checksum = 0;
pfh.icmph.un.echo.id = inet->inet_sport;
pfh.icmph.un.echo.sequence = user_icmph.icmp6_sequence;
/* XXX: stripping const */
pfh.iov = (struct iovec *)msg->msg_iter.iov;
pfh.msg = msg;
pfh.wcheck = 0;
pfh.family = AF_INET6;