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| author | Yunsheng Lin <linyunsheng@huawei.com> | 2020-07-21 19:03:51 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-21 15:49:17 -0700 |
| commit | 0ec3b6a7c026e8f404f76d6dda5dae8d262312a0 (patch) | |
| tree | 4d9fe45751955ad05931bd81d518daf53bef8a09 /crypto | |
| parent | b0a422772fec29811e293c7c0e6f991c0fd9241d (diff) | |
| download | linux-0ec3b6a7c026e8f404f76d6dda5dae8d262312a0.tar.gz | |
net: hns3: fix for not unmapping TX buffer correctly
When a big TX buffer is sent using multi BD, the driver maps the
whole TX buffer, and unmaps it using info in desc_cb corresponding
to each BD, but only the info in the desc_cb of first BD is correct,
other info in desc_cb is wrong, which causes TX unmapping problem
when SMMU is on.
Only set the mapping and freeing info in the desc_cb of first BD to
fix this problem, because the TX buffer only need to be unmapped and
freed once.
Fixes: 1e8a7977d09f("net: hns3: add handling for big TX fragment")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huzhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'crypto')
0 files changed, 0 insertions, 0 deletions