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--- a/hostapd/driver_madwifi.c
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+++ b/hostapd/driver_madwifi.c
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@@ -310,6 +310,7 @@ madwifi_set_iface_flags(void *priv, int
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{
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struct madwifi_driver_data *drv = priv;
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struct ifreq ifr;
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+ short flags;
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wpa_printf(MSG_DEBUG, "%s: dev_up=%d", __func__, dev_up);
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@@ -324,10 +325,14 @@ madwifi_set_iface_flags(void *priv, int
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return -1;
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}
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+ flags = ifr.ifr_flags;
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if (dev_up)
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- ifr.ifr_flags |= IFF_UP;
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+ flags |= IFF_UP;
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else
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- ifr.ifr_flags &= ~IFF_UP;
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+ flags &= ~IFF_UP;
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+
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+ if (flags == ifr.ifr_flags)
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+ return 0;
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if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
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perror("ioctl[SIOCSIFFLAGS]");
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