atomic_t *p_id = ip_idents + hash % IP_IDENTS_SZ;
u32 old = ACCESS_ONCE(*p_tstamp);
u32 now = (u32)jiffies;
- u32 delta = 0;
+ u32 new, delta = 0;
if (old != now && cmpxchg(p_tstamp, old, now) == old)
delta = prandom_u32_max(now - old);
- return atomic_add_return(segs + delta, p_id) - segs;
+ /* Do not use atomic_add_return() as it makes UBSAN unhappy */
+ do {
+ old = (u32)atomic_read(p_id);
+ new = old + delta + segs;
+ } while (atomic_cmpxchg(p_id, old, new) != old);
+
+ return new - segs;
}
EXPORT_SYMBOL(ip_idents_reserve);
if (!IN_DEV_FORWARD(in_dev)) {
switch (rt->dst.error) {
case EHOSTUNREACH:
- IP_INC_STATS_BH(net, IPSTATS_MIB_INADDRERRORS);
+ __IP_INC_STATS(net, IPSTATS_MIB_INADDRERRORS);
break;
case ENETUNREACH:
- IP_INC_STATS_BH(net, IPSTATS_MIB_INNOROUTES);
+ __IP_INC_STATS(net, IPSTATS_MIB_INNOROUTES);
break;
}
goto out;
break;
case ENETUNREACH:
code = ICMP_NET_UNREACH;
- IP_INC_STATS_BH(net, IPSTATS_MIB_INNOROUTES);
+ __IP_INC_STATS(net, IPSTATS_MIB_INNOROUTES);
break;
case EACCES:
code = ICMP_PKT_FILTERED;
unsigned int flags = 0;
struct fib_result res;
struct rtable *rth;
+ int master_idx;
int orig_oif;
int err = -ENETUNREACH;
orig_oif = fl4->flowi4_oif;
+ master_idx = l3mdev_master_ifindex_by_index(net, fl4->flowi4_oif);
+ if (master_idx)
+ fl4->flowi4_oif = master_idx;
fl4->flowi4_iif = LOOPBACK_IFINDEX;
fl4->flowi4_tos = tos & IPTOS_RT_MASK;
fl4->flowi4_scope = ((tos & RTO_ONLINK) ?