[PATCH] netfilter: xt_hashlimit: fix 64 bit division compile error

[Vishwanath Pai]

commit bea74641e378 ("netfilter: xt_hashlimit: add rate match mode")
introduced a line where we divide two 64bit unsigned integers. This
breaks on ARM processors with the error:

ERROR: "__aeabi_uldivmod" [net/netfilter/xt_hashlimit.ko] undefined!

We can fix it by using div64_u64 instead.

Fixes: bea74641e378 ("netfilter: xt_hashlimit: add rate match mode")
Signed-off-by: Vishwanath Pai <v...@akamai.com>
---
 net/netfilter/xt_hashlimit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index 10d4823..fece7c2 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -531,7 +531,7 @@ static u64 user2rate_bytes(u64 user)
 {
        u64 r;
 
-       r = user ? 0xFFFFFFFFULL / user : 0xFFFFFFFFULL;
+       r = user ? div64_u64(0xFFFFFFFFULL, user) : 0xFFFFFFFFULL;
        r = (r - 1) << 4;
        return r;
 }
-- 
1.9.1