pkt_sched: fq: prefetch() fix
kbuild bot reported following m68k build error :
net/sched/sch_fq.c: In function 'fq_dequeue':
>> net/sched/sch_fq.c:491:2: error: implicit declaration of function
'prefetch' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
While we are fixing this, move this prefetch() call a bit earlier.
Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index 91ceca7..32ad015 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -46,6 +46,7 @@
#include <linux/slab.h>
#include <linux/rbtree.h>
#include <linux/hash.h>
+#include <linux/prefetch.h>
#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <net/sock.h>
@@ -461,6 +462,7 @@
}
goto begin;
}
+ prefetch(&skb->end);
f->time_next_packet = now;
f->credit -= qdisc_pkt_len(skb);
@@ -488,7 +490,6 @@
}
}
out:
- prefetch(&skb->end);
sch->qstats.backlog -= qdisc_pkt_len(skb);
qdisc_bstats_update(sch, skb);
sch->q.qlen--;