ethtool: don't call set_channels in drivers if config didn't change (75c36dbb) · Commits · 戴 / test

Don't call drivers if nothing changed. Netlink code already contains this logic. Signed-off-by:

net/ethtool/ioctl.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -1669,6 +1669,12 @@ static noinline_for_stack int ethtool_set_channels(struct net_device *dev,

		dev->ethtool_ops->get_channels(dev, &curr);

		if (channels.rx_count == curr.rx_count &&
		channels.tx_count == curr.tx_count &&
		channels.combined_count == curr.combined_count &&
		channels.other_count == curr.other_count)
		return 0;

		/* ensure new counts are within the maximums */
		if (channels.rx_count > curr.max_rx \|\|
		channels.tx_count > curr.max_tx \|\|