Author: jfv
Date: Sat Jan 22 00:19:15 2011
New Revision: 217707
URL: http://svn.freebsd.org/changeset/base/217707
Log:
Don't bother to run the flowcontrol code if there
is no change. Thanks to Andrew for the tweak.
Modified:
head/sys/dev/ixgbe/ixgbe.c
Modified: head/sys/dev/ixgbe/ixgbe.c
==============================================================================
--- head/sys/dev/ixgbe/ixgbe.c Sat Jan 22 00:08:06 2011 (r217706)
+++ head/sys/dev/ixgbe/ixgbe.c Sat Jan 22 00:19:15 2011 (r217707)
@@ -5268,13 +5268,17 @@ static int
ixgbe_set_flowcntl(SYSCTL_HANDLER_ARGS)
{
int error;
+ int last = ixgbe_flow_control;
struct adapter *adapter;
error = sysctl_handle_int(oidp, &ixgbe_flow_control, 0, req);
-
if (error)
return (error);
+ /* Don't bother if it's not changed */
+ if (ixgbe_flow_control == last)
+ return (0);
+
adapter = (struct adapter *) arg1;
switch (ixgbe_flow_control) {
case ixgbe_fc_rx_pause:
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