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Take the modulus of the AEN queue tail number rather than the mask of. Now 

the tail pointer advances properly.
This commit is contained in:
heas 2004-09-23 01:16:34 +00:00
parent ad8109e2b5
commit 9d64f3ebc8
1 changed files with 3 additions and 3 deletions
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6
sys/dev/pci/twe.c
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@ -1,4 +1,4 @@
/* $NetBSD: twe.c,v 1.59 2004/09/13 12:55:48 drochner Exp $ */
/* $NetBSD: twe.c,v 1.60 2004/09/23 01:16:34 heas Exp $ */
/*-
* Copyright (c) 2000, 2001, 2002, 2003, 2004 The NetBSD Foundation, Inc.
@ -70,7 +70,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: twe.c,v 1.59 2004/09/13 12:55:48 drochner Exp $");
__KERNEL_RCSID(0, "$NetBSD: twe.c,v 1.60 2004/09/23 01:16:34 heas Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -1039,7 +1039,7 @@ twe_aen_dequeue(struct twe_softc *sc)
aen = TWE_AEN_QUEUE_EMPTY;
else {
aen = sc->sc_aen_queue[sc->sc_aen_tail];
sc->sc_aen_tail = (sc->sc_aen_tail + 1) & TWE_AEN_Q_LENGTH;
sc->sc_aen_tail = (sc->sc_aen_tail + 1) % TWE_AEN_Q_LENGTH;
}
return (aen);