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Fix build error introduced in my last commit
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@ -2922,12 +2922,12 @@ lwip_setsockopt_impl(int s, int level, int optname, const void *optval, socklen_
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#endif /* LWIP_UDP */
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case SO_BINDTODEVICE:
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{
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struct ifreq *iface;
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const struct ifreq *iface;
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struct netif* n = NULL;
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LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, optlen, struct ifreq);
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iface = (struct ifreq*)optval;
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iface = (const struct ifreq*)optval;
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if (iface->ifr_name[0] != 0) {
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n = netif_find(iface->ifr_name);
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if (n == NULL) {
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