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authorAmerigo Wang <amwang@redhat.com>2010-03-22 01:59:58 +0300
committerDavid S. Miller <davem@davemloft.net>2010-03-23 06:05:45 +0300
commit5fc05f8764f301138003ff562a31ad3721f1675f (patch)
tree7c5a3d9179ce0fc23829302149aaa1d2e1d1a4ab /net
parent21afc27c9f9ae1f6370c47b323be7f3b75106569 (diff)
downloadlinux-5fc05f8764f301138003ff562a31ad3721f1675f.tar.xz
netpoll: warn when there are spaces in parameters
v2: update according to Frans' comments. Currently, if we leave spaces before dst port, netconsole will silently accept it as 0. Warn about this. Also, when spaces appear in other places, make them visible in error messages. Signed-off-by: WANG Cong <amwang@redhat.com> Cc: David Miller <davem@davemloft.net> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/netpoll.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index d4ec38fa64e6..6f9206b36dc2 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -614,7 +614,7 @@ void netpoll_print_options(struct netpoll *np)
np->name, np->local_port);
printk(KERN_INFO "%s: local IP %pI4\n",
np->name, &np->local_ip);
- printk(KERN_INFO "%s: interface %s\n",
+ printk(KERN_INFO "%s: interface '%s'\n",
np->name, np->dev_name);
printk(KERN_INFO "%s: remote port %d\n",
np->name, np->remote_port);
@@ -661,6 +661,9 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
if ((delim = strchr(cur, '@')) == NULL)
goto parse_failed;
*delim = 0;
+ if (*cur == ' ' || *cur == '\t')
+ printk(KERN_INFO "%s: warning: whitespace"
+ "is not allowed\n", np->name);
np->remote_port = simple_strtol(cur, NULL, 10);
cur = delim;
}
@@ -708,7 +711,7 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
return 0;
parse_failed:
- printk(KERN_INFO "%s: couldn't parse config at %s!\n",
+ printk(KERN_INFO "%s: couldn't parse config at '%s'!\n",
np->name, cur);
return -1;
}