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authorDan Carpenter <dan.carpenter@oracle.com>2011-11-04 08:21:38 +0000
committerDavid S. Miller <davem@davemloft.net>2011-11-04 18:37:23 -0400
commit589665f5a6008dbce1d0af2cb93e94a80bf78151 (patch)
tree4f4ec1949dd233a8474c2cb477da3637166b6e75
parent27d240fdae2808d727ad9ce48ec029731a457524 (diff)
downloadlwn-589665f5a6008dbce1d0af2cb93e94a80bf78151.tar.gz
lwn-589665f5a6008dbce1d0af2cb93e94a80bf78151.zip
bonding: comparing a u8 with -1 is always false
slave->duplex is a u8 type so the in bond_info_show_slave() when we check "if (slave->duplex == -1)", it's always false. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/bonding/bond_main.c4
-rw-r--r--drivers/net/bonding/bond_procfs.c4
-rw-r--r--include/linux/ethtool.h2
3 files changed, 6 insertions, 4 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index b2b9109b6712..b0c577256487 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -560,8 +560,8 @@ static int bond_update_speed_duplex(struct slave *slave)
u32 slave_speed;
int res;
- slave->speed = -1;
- slave->duplex = -1;
+ slave->speed = SPEED_UNKNOWN;
+ slave->duplex = DUPLEX_UNKNOWN;
res = __ethtool_get_settings(slave_dev, &ecmd);
if (res < 0)
diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c
index d2ff52e63cbb..17206da2fab7 100644
--- a/drivers/net/bonding/bond_procfs.c
+++ b/drivers/net/bonding/bond_procfs.c
@@ -157,12 +157,12 @@ static void bond_info_show_slave(struct seq_file *seq,
seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
seq_printf(seq, "MII Status: %s\n",
(slave->link == BOND_LINK_UP) ? "up" : "down");
- if (slave->speed == -1)
+ if (slave->speed == SPEED_UNKNOWN)
seq_printf(seq, "Speed: %s\n", "Unknown");
else
seq_printf(seq, "Speed: %d Mbps\n", slave->speed);
- if (slave->duplex == -1)
+ if (slave->duplex == DUPLEX_UNKNOWN)
seq_printf(seq, "Duplex: %s\n", "Unknown");
else
seq_printf(seq, "Duplex: %s\n", slave->duplex ? "full" : "half");
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 45f00b61c096..de33de1e2052 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -1097,10 +1097,12 @@ struct ethtool_ops {
#define SPEED_1000 1000
#define SPEED_2500 2500
#define SPEED_10000 10000
+#define SPEED_UNKNOWN -1
/* Duplex, half or full. */
#define DUPLEX_HALF 0x00
#define DUPLEX_FULL 0x01
+#define DUPLEX_UNKNOWN 0xff
/* Which connector port. */
#define PORT_TP 0x00