ipv4: Fix compilation errors in fib_rebalance

This fixes

net/built-in.o: In function `fib_rebalance':
fib_semantics.c:(.text+0x9df14): undefined reference to `__divdi3'

and

net/built-in.o: In function `fib_rebalance':
net/ipv4/fib_semantics.c:572: undefined reference to `__aeabi_ldivmod'

Fixes: 0e884c78ee19 ("ipv4: L3 hash-based multipath")

Signed-off-by: Peter Nørlund <pch@ordbogen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 0c49d2f3bbc0..7bd698c3bd3a 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -569,8 +569,8 @@ static void fib_rebalance(struct fib_info *fi)
                         upper_bound = -1;
                 } else {
                         w += nexthop_nh->nh_weight;
-                        upper_bound = DIV_ROUND_CLOSEST(2147483648LL * w,
-                                                        total) - 1;
+                        upper_bound = DIV_ROUND_CLOSEST_ULL((u64)w << 31,
+                                                            total) - 1;
                 }
 
                 atomic_set(&nexthop_nh->nh_upper_bound, upper_bound);