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etharp: cast netif_addr_idx_t to u16_t to match format type
This fixes an issue seen on MacOS with Clang 9.0.0: ../../../../lwip/src/core/ipv4/etharp.c:1069:142: error: format specifies type 'unsigned short' but the argument has type 'netif_addr_idx_t' (aka 'unsigned char') [-Werror,-Wformat] LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: dropped previously queued packet %p for ARP entry %"U16_F"\n", (void *)q, i)); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~ ../../../../lwip/src/core/ipv4/etharp.c:1074:120: error: format specifies type 'unsigned short' but the argument has type 'netif_addr_idx_t' (aka 'unsigned char') [-Werror,-Wformat] LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: queued packet %p on ARP entry %"U16_F"\n", (void *)q, i)); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~ By default, netif_addr_idx_t is u8_t, so cast up to u16_t to match the format type
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@ -1066,12 +1066,12 @@ etharp_query(struct netif *netif, const ip4_addr_t *ipaddr, struct pbuf *q)
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#else /* ARP_QUEUEING */
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#else /* ARP_QUEUEING */
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/* always queue one packet per ARP request only, freeing a previously queued packet */
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/* always queue one packet per ARP request only, freeing a previously queued packet */
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if (arp_table[i].q != NULL) {
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if (arp_table[i].q != NULL) {
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LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: dropped previously queued packet %p for ARP entry %"U16_F"\n", (void *)q, i));
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LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: dropped previously queued packet %p for ARP entry %"U16_F"\n", (void *)q, (u16_t)i));
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pbuf_free(arp_table[i].q);
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pbuf_free(arp_table[i].q);
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}
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}
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arp_table[i].q = p;
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arp_table[i].q = p;
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result = ERR_OK;
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result = ERR_OK;
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LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: queued packet %p on ARP entry %"U16_F"\n", (void *)q, i));
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LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: queued packet %p on ARP entry %"U16_F"\n", (void *)q, (u16_t)i));
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#endif /* ARP_QUEUEING */
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#endif /* ARP_QUEUEING */
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} else {
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} else {
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ETHARP_STATS_INC(etharp.memerr);
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ETHARP_STATS_INC(etharp.memerr);
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