Add suffix LL to constant 1000 in order to avoid a potential integer
overflow and give the compiler complete information about the proper
arithmetic to use. Notice that this constant is being used in a context
that expects an expression of type s64, but it's currently evaluated
using 32-bit arithmetic.
Addresses-Coverity-ID: 1453459 ("Unintentional integer overflow")
Fixes: f04b514c0ce2 ("taprio: Set default link speed to 10 Mbps in
taprio_set_picos_per_byte")
Signed-off-by: Gustavo A. R. Silva <gust...@embeddedor.com>
---
net/sched/sch_taprio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c
index 8d8bc2ec5cd6..956f837436ea 100644
--- a/net/sched/sch_taprio.c
+++ b/net/sched/sch_taprio.c
@@ -966,7 +966,7 @@ static void taprio_set_picos_per_byte(struct net_device
*dev,
skip:
picos_per_byte = div64_s64(NSEC_PER_SEC * 1000LL * 8,
- speed * 1000 * 1000);
+ speed * 1000LL * 1000);
atomic64_set(&q->picos_per_byte, picos_per_byte);
netdev_dbg(dev, "taprio: set %s's picos_per_byte to: %lld, linkspeed:
%d\n",
--
2.23.0
