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Take kernel lock before passing data to if_input. This is in line

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with IPL_NET interrupts generally not being MPSAFE.
This commit is contained in:
pooka 2010-08-15 18:48:38 +00:00
parent dc24e61692
commit 9ae53a340e
1 changed files with 4 additions and 2 deletions
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6
sys/rump/net/lib/libshmif/if_shmem.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_shmem.c,v 1.21 2010/08/15 18:40:41 pooka Exp $ */
/* $NetBSD: if_shmem.c,v 1.22 2010/08/15 18:48:38 pooka Exp $ */
/*
* Copyright (c) 2009 Antti Kantee. All Rights Reserved.
@ -28,7 +28,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_shmem.c,v 1.21 2010/08/15 18:40:41 pooka Exp $");
__KERNEL_RCSID(0, "$NetBSD: if_shmem.c,v 1.22 2010/08/15 18:48:38 pooka Exp $");
#include <sys/param.h>
#include <sys/atomic.h>
@ -310,7 +310,9 @@ shmif_rcv(void *arg)
/* if it's from us, don't pass up and reuse storage space */
eth = mtod(m, struct ether_header *);
if (memcmp(eth->ether_shost, sc->sc_myaddr, 6) != 0) {
KERNEL_LOCK(1, NULL);
ifp->if_input(ifp, m);
KERNEL_UNLOCK_ONE(NULL);
m = NULL;
}
}