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-rw-r--r--net/tipc/subscr.c57
1 files changed, 22 insertions, 35 deletions
diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index ac91f0dfa144..ff123e56114a 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -76,19 +76,6 @@ struct top_srv {
static struct top_srv topsrv = { 0 };
/**
- * htohl - convert value to endianness used by destination
- * @in: value to convert
- * @swap: non-zero if endianness must be reversed
- *
- * Returns converted value
- */
-
-static u32 htohl(u32 in, int swap)
-{
- return swap ? swab32(in) : in;
-}
-
-/**
* subscr_send_event - send a message containing a tipc_event to the subscriber
*
* Note: Must not hold subscriber's server port lock, since tipc_send() will
@@ -107,11 +94,11 @@ static void subscr_send_event(struct subscription *sub,
msg_sect.iov_base = (void *)&sub->evt;
msg_sect.iov_len = sizeof(struct tipc_event);
- sub->evt.event = htohl(event, sub->swap);
- sub->evt.found_lower = htohl(found_lower, sub->swap);
- sub->evt.found_upper = htohl(found_upper, sub->swap);
- sub->evt.port.ref = htohl(port_ref, sub->swap);
- sub->evt.port.node = htohl(node, sub->swap);
+ sub->evt.event = htonl(event);
+ sub->evt.found_lower = htonl(found_lower);
+ sub->evt.found_upper = htonl(found_upper);
+ sub->evt.port.ref = htonl(port_ref);
+ sub->evt.port.node = htonl(node);
tipc_send(sub->server_ref, 1, &msg_sect);
}
@@ -287,16 +274,23 @@ static void subscr_cancel(struct tipc_subscr *s,
{
struct subscription *sub;
struct subscription *sub_temp;
+ __u32 type, lower, upper;
int found = 0;
/* Find first matching subscription, exit if not found */
+ type = ntohl(s->seq.type);
+ lower = ntohl(s->seq.lower);
+ upper = ntohl(s->seq.upper);
+
list_for_each_entry_safe(sub, sub_temp, &subscriber->subscription_list,
subscription_list) {
- if (!memcmp(s, &sub->evt.s, sizeof(struct tipc_subscr))) {
- found = 1;
- break;
- }
+ if ((type == sub->seq.type) &&
+ (lower == sub->seq.lower) &&
+ (upper == sub->seq.upper)) {
+ found = 1;
+ break;
+ }
}
if (!found)
return;
@@ -325,16 +319,10 @@ static struct subscription *subscr_subscribe(struct tipc_subscr *s,
struct subscriber *subscriber)
{
struct subscription *sub;
- int swap;
-
- /* Determine subscriber's endianness */
-
- swap = !(s->filter & (TIPC_SUB_PORTS | TIPC_SUB_SERVICE));
/* Detect & process a subscription cancellation request */
- if (s->filter & htohl(TIPC_SUB_CANCEL, swap)) {
- s->filter &= ~htohl(TIPC_SUB_CANCEL, swap);
+ if (ntohl(s->filter) & TIPC_SUB_CANCEL) {
subscr_cancel(s, subscriber);
return NULL;
}
@@ -359,11 +347,11 @@ static struct subscription *subscr_subscribe(struct tipc_subscr *s,
/* Initialize subscription object */
- sub->seq.type = htohl(s->seq.type, swap);
- sub->seq.lower = htohl(s->seq.lower, swap);
- sub->seq.upper = htohl(s->seq.upper, swap);
- sub->timeout = htohl(s->timeout, swap);
- sub->filter = htohl(s->filter, swap);
+ sub->seq.type = ntohl(s->seq.type);
+ sub->seq.lower = ntohl(s->seq.lower);
+ sub->seq.upper = ntohl(s->seq.upper);
+ sub->timeout = ntohl(s->timeout);
+ sub->filter = ntohl(s->filter);
if ((!(sub->filter & TIPC_SUB_PORTS) ==
!(sub->filter & TIPC_SUB_SERVICE)) ||
(sub->seq.lower > sub->seq.upper)) {
@@ -376,7 +364,6 @@ static struct subscription *subscr_subscribe(struct tipc_subscr *s,
INIT_LIST_HEAD(&sub->nameseq_list);
list_add(&sub->subscription_list, &subscriber->subscription_list);
sub->server_ref = subscriber->port_ref;
- sub->swap = swap;
memcpy(&sub->evt.s, s, sizeof(struct tipc_subscr));
atomic_inc(&topsrv.subscription_count);
if (sub->timeout != TIPC_WAIT_FOREVER) {