mirror of https://gitee.com/openkylin/linux.git
f01204ec8b
The legacy ethtool userspace tool shows an error when no features could
be changed. It's useful to have a netlink reply to be able to show this
error when __netdev_update_features wasn't called, for example:
1. ethtool -k eth0
large-receive-offload: off
2. ethtool -K eth0 rx-fcs on
3. ethtool -K eth0 lro on
Could not change any device features
rx-lro: off [requested on]
4. ethtool -K eth0 lro on
# The output should be the same, but without this patch the kernel
# doesn't send the reply, and ethtool is unable to detect the error.
This commit makes ethtool-netlink always return a reply when requested,
and it still avoids unnecessary calls to __netdev_update_features if the
wanted features haven't changed.
Fixes:
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||
|---|---|---|
| .. | ||
| Makefile | ||
| bitset.c | ||
| bitset.h | ||
| cabletest.c | ||
| channels.c | ||
| coalesce.c | ||
| common.c | ||
| common.h | ||
| debug.c | ||
| eee.c | ||
| features.c | ||
| ioctl.c | ||
| linkinfo.c | ||
| linkmodes.c | ||
| linkstate.c | ||
| netlink.c | ||
| netlink.h | ||
| pause.c | ||
| privflags.c | ||
| rings.c | ||
| strset.c | ||
| tsinfo.c | ||
| tunnels.c | ||
| wol.c | ||