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| author |   Yunsheng Lin <linyunsheng@huawei.com> | 2019-03-21 11:28:43 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-03-21 13:59:24 -0700 |
| commit | 5f543a54eec08228ab0cc0a49cf5d79dd32c9e5e (patch) | |
| tree | 8766e7d7a2619c06d7e81391db73b02f9db2c2ab /drivers/net/ethernet/realtek/r8169.c | |
| parent | rhashtable: Still do rehash when we get EEXIST (diff) | |
| download | linux-dev-5f543a54eec08228ab0cc0a49cf5d79dd32c9e5e.tar.xz linux-dev-5f543a54eec08228ab0cc0a49cf5d79dd32c9e5e.zip | |
net: hns3: fix for not calculating tx bd num correctly
When there is only one byte in a frag, the current calculation
using "(size + HNS3_MAX_BD_SIZE - 1) >> HNS3_MAX_BD_SIZE_OFFSET"
will return zero, because HNS3_MAX_BD_SIZE is 65535 and
HNS3_MAX_BD_SIZE_OFFSET is 16. So it will cause tx error when
a frag's size is one byte.
This patch fixes it by using DIV_ROUND_UP.
Fixes: 3fe13ed95dd3 ("net: hns3: avoid mult + div op in critical data path")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/realtek/r8169.c')
0 files changed, 0 insertions, 0 deletions