[PATCH] net: add unknown state to sysfs NIC duplex export
From: Nikolay Aleksandrov <hidden>
Date: 2012-09-05 14:12:47
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Currently when the NIC duplex state is DUPLEX_UNKNOWN it is exported as full through sysfs, this patch adds support for DUPLEX_UNKNOWN. It is handled the same way as in ethtool. Signed-off-by: Nikolay Aleksandrov [off-list ref] --- net/core/net-sysfs.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 7260717..7720fb1 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c@@ -166,9 +166,21 @@ static ssize_t show_duplex(struct device *dev, if (netif_running(netdev)) { struct ethtool_cmd cmd; - if (!__ethtool_get_settings(netdev, &cmd)) - ret = sprintf(buf, "%s\n", - cmd.duplex ? "full" : "half"); + if (!__ethtool_get_settings(netdev, &cmd)) { + char *duplex; + switch(cmd.duplex) { + case DUPLEX_HALF: + duplex = "half"; + break; + case DUPLEX_FULL: + duplex = "full"; + break; + default: + duplex = "unknown"; + break; + } + ret = sprintf(buf, "%s\n", duplex); + } } rtnl_unlock(); return ret;
--
1.7.11.4