From: Rui Paulo <rpaulo@FreeBSD.org>
Date: Wed, 7 Aug 2013 07:54:16 +0000 (+0300)
Subject: bsd: Skip SIOCSIFFFLAGS ioctl when there is no change.
X-Git-Tag: aosp-kk-from-upstream~99
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cb76af8a35a46146fbc324d28b06c50317c7197b;p=thirdparty%2Fhostap.git

bsd: Skip SIOCSIFFFLAGS ioctl when there is no change.

Don't issue SIOCSIFFLAGS if the interface is already up or already down.

Signed-hostap: Rui Paulo <rpaulo@FreeBSD.org>
---

diff --git a/src/drivers/driver_bsd.c b/src/drivers/driver_bsd.c
index 9d869b151..a80a9ac7b 100644
--- a/src/drivers/driver_bsd.c
+++ b/src/drivers/driver_bsd.c
@@ -265,10 +265,15 @@ bsd_ctrl_iface(void *priv, int enable)
 		return -1;
 	}
 
-	if (enable)
+	if (enable) {
+		if (ifr.ifr_flags & IFF_UP)
+			return 0;
 		ifr.ifr_flags |= IFF_UP;
-	else
+	} else {
+		if (!(ifr.ifr_flags & IFF_UP))
+			return 0;
 		ifr.ifr_flags &= ~IFF_UP;
+	}
 
 	if (ioctl(drv->sock, SIOCSIFFLAGS, &ifr) < 0) {
 		perror("ioctl[SIOCSIFFLAGS]");