| From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.19 205/206] net: openvswitch: use div_u64() for 64-by-32 divisions | Date | Thu, 17 Sep 2020 22:08:01 -0400 |
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From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
[ Upstream commit 659d4587fe7233bfdff303744b20d6f41ad04362 ]
Compile the kernel for arm 32 platform, the build warning found. To fix that, should use div_u64() for divisions. | net/openvswitch/meter.c:396: undefined reference to `__udivdi3'
[add more commit msg, change reported tag, and use div_u64 instead of do_div by Tonghao]
Fixes: e57358873bb5d6ca ("net: openvswitch: use u64 for meter bucket") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com> Tested-by: Tonghao Zhang <xiangxia.m.yue@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- net/openvswitch/meter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/openvswitch/meter.c b/net/openvswitch/meter.c index 6f5131d1074b0..5ea2471ffc03f 100644 --- a/net/openvswitch/meter.c +++ b/net/openvswitch/meter.c @@ -256,7 +256,7 @@ static struct dp_meter *dp_meter_create(struct nlattr **a) * Start with a full bucket. */ band->bucket = (band->burst_size + band->rate) * 1000ULL; - band_max_delta_t = band->bucket / band->rate; + band_max_delta_t = div_u64(band->bucket, band->rate); if (band_max_delta_t > meter->max_delta_t) meter->max_delta_t = band_max_delta_t; band++; -- 2.25.1
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