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| author |   Yufeng Mo <moyufeng@huawei.com> | 2022-03-30 21:45:05 +0800 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2022-03-31 11:39:59 +0200 |
| commit | 9c9a04212fa380d2e7d1412bb281309955c0a781 (patch) | |
| tree | 1562ce7225991d42966a865ff80d5bcc0dd84b20 /drivers/net/ethernet/hisilicon/hns3/hnae3.h | |
| parent | Merge branch 'docs-update-and-move-the-netdev-faq' (diff) | |
| download | linux-dev-9c9a04212fa380d2e7d1412bb281309955c0a781.tar.xz linux-dev-9c9a04212fa380d2e7d1412bb281309955c0a781.zip | |
net: hns3: fix the concurrency between functions reading debugfs
Currently, the debugfs mechanism is that all functions share a
global variable to save the pointer for obtaining data. When
different functions concurrently access the same file node,
repeated release exceptions occur. Therefore, the granularity
of the pointer for storing the obtained data is adjusted to be
private for each function.
Fixes: 5e69ea7ee2a6 ("net: hns3: refactor the debugfs process")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hnae3.h')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index d44dd7091fa1..79c64f4e67d2 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -845,6 +845,7 @@ struct hnae3_handle { struct dentry *hnae3_dbgfs; /* protects concurrent contention between debugfs commands */ struct mutex dbgfs_lock; + char **dbgfs_buf; /* Network interface message level enabled bits */ u32 msg_enable; |