From 36504605432996590f889e33d47e2d9c581f7569 Mon Sep 17 00:00:00 2001 From: David Decotigny Date: Wed, 27 Apr 2011 18:32:37 +0000 Subject: ethtool: cosmetics: enforce const-ness in ethtool_cmd_speed The 'ep' argument of ethtool_cmd_speed is not altered: advertise it in protoype. +Indentation fix. Also add comments to advise using the ethtool_cmd_speed API to get/set the link speed. Signed-off-by: David Decotigny Signed-off-by: David S. Miller --- include/linux/ethtool.h | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'include/linux/ethtool.h') diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 9de31274341d..7e6e0a89ca26 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -24,7 +24,10 @@ struct ethtool_cmd { __u32 cmd; __u32 supported; /* Features this interface supports */ __u32 advertising; /* Features this interface advertises */ - __u16 speed; /* The forced speed, 10Mb, 100Mb, gigabit */ + __u16 speed; /* The forced speed (lower bits) in + * Mbps. Please use + * ethtool_cmd_speed()/_set() to + * access it */ __u8 duplex; /* Duplex, half or full */ __u8 port; /* Which connector port */ __u8 phy_address; @@ -33,7 +36,10 @@ struct ethtool_cmd { __u8 mdio_support; __u32 maxtxpkt; /* Tx pkts before generating tx int */ __u32 maxrxpkt; /* Rx pkts before generating rx int */ - __u16 speed_hi; + __u16 speed_hi; /* The forced speed (upper + * bits) in Mbps. Please use + * ethtool_cmd_speed()/_set() to + * access it */ __u8 eth_tp_mdix; __u8 reserved2; __u32 lp_advertising; /* Features the link partner advertises */ @@ -41,14 +47,14 @@ struct ethtool_cmd { }; static inline void ethtool_cmd_speed_set(struct ethtool_cmd *ep, - __u32 speed) + __u32 speed) { ep->speed = (__u16)speed; ep->speed_hi = (__u16)(speed >> 16); } -static inline __u32 ethtool_cmd_speed(struct ethtool_cmd *ep) +static inline __u32 ethtool_cmd_speed(const struct ethtool_cmd *ep) { return (ep->speed_hi << 16) | ep->speed; } -- cgit v1.2.3-59-g8ed1b