From b8c8a2e2e3758be93959587e6b19aadbb0ce7275 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Mon, 1 Oct 2018 14:51:35 +0200 Subject: [PATCH] ethtool: rename local variable max -> curr ethtool_set_channels() validates the config against driver's max settings. It retrieves the current config and stores it in a variable called max. This was okay when only max settings were accessed but we will soon want to access current settings as well, so calling the entire structure max makes the code less readable. While at it drop unnecessary parenthesis. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Signed-off-by: Daniel Borkmann --- net/core/ethtool.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 96afc55aa61e..9a648fb09594 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -1655,7 +1655,7 @@ static noinline_for_stack int ethtool_get_channels(struct net_device *dev, static noinline_for_stack int ethtool_set_channels(struct net_device *dev, void __user *useraddr) { - struct ethtool_channels channels, max = { .cmd = ETHTOOL_GCHANNELS }; + struct ethtool_channels channels, curr = { .cmd = ETHTOOL_GCHANNELS }; u32 max_rx_in_use = 0; if (!dev->ethtool_ops->set_channels || !dev->ethtool_ops->get_channels) @@ -1664,13 +1664,13 @@ static noinline_for_stack int ethtool_set_channels(struct net_device *dev, if (copy_from_user(&channels, useraddr, sizeof(channels))) return -EFAULT; - dev->ethtool_ops->get_channels(dev, &max); + dev->ethtool_ops->get_channels(dev, &curr); /* ensure new counts are within the maximums */ - if ((channels.rx_count > max.max_rx) || - (channels.tx_count > max.max_tx) || - (channels.combined_count > max.max_combined) || - (channels.other_count > max.max_other)) + if (channels.rx_count > curr.max_rx || + channels.tx_count > curr.max_tx || + channels.combined_count > curr.max_combined || + channels.other_count > curr.max_other) return -EINVAL; /* ensure the new Rx count fits within the configured Rx flow