The function netif_receive_skb() can only be called from softirq

context. To call it from process context, add bh_disable() around the call.
alliedtelesis · Oct 30, 2024 · 606680f · 606680f
1 parent 542192c
commit 606680f
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/LINUX/netmap_linux.c b/LINUX/netmap_linux.c
@@ -476,7 +476,9 @@ nm_os_send_up(struct ifnet *ifp, struct mbuf *m, struct mbuf *prev)
 
 	/* Process this packet now on the stack of the userspace caller (rather than
 	   queuing on the cpu backlog and then processing later via ksoftirqd) */
+	local_bh_disable();
 	netif_receive_skb(m);
+	local_bh_enable();
 #else
 #ifdef NETMAP_LINUX_HAVE_NETIF_RX_NI
 	netif_rx_ni(m);