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arp: fix race between init and incoming packets

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Matheus
2025-08-12 23:43:06 -03:00
parent 98be724c65
commit 5b5dca8137
1 changed files with 4 additions and 0 deletions
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kernel-src/io/net/arp.c
+4
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@@ -179,6 +179,10 @@ static void handlerthreadfn() {
// executed in dpc context // executed in dpc context
void arp_process(netdev_t *netdev, void *buffer) { void arp_process(netdev_t *netdev, void *buffer) {
// not initialized yet
if (handlerthread == NULL)
return;
arpframe_t *frame = buffer; arpframe_t *frame = buffer;
if (frame->hwtype != cpu_to_be_w(1)) // ethernet if (frame->hwtype != cpu_to_be_w(1)) // ethernet
return; return;