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Add a default: branch with a panic() to the switch statement to 

handle "impossible" segment types, so that the compiler can know
that 'pt' has been initialized after the switch statement.
This commit is contained in:
he 2003-11-06 00:32:27 +00:00
parent 93d88e5e12
commit 11f834a44a
1 changed files with 4 additions and 2 deletions
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6
sys/arch/vax/vax/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.129 2003/10/19 14:58:22 ragge Exp $ */
/* $NetBSD: pmap.c,v 1.130 2003/11/06 00:32:27 he Exp $ */
/*
* Copyright (c) 1994, 1998, 1999, 2003 Ludd, University of Lule}, Sweden.
* All rights reserved.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.129 2003/10/19 14:58:22 ragge Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.130 2003/11/06 00:32:27 he Exp $");
#include "opt_ddb.h"
#include "opt_cputype.h"
@ -1309,6 +1309,8 @@ pmap_protect_long(pmap_t pmap, vaddr_t start, vaddr_t end, vm_prot_t prot)
pt = pmap->pm_p0br;
pr = (prot & VM_PROT_WRITE ? PROT_RW : PROT_RO);
break;
default:
panic("unsupported segtype: %d", SEGTYPE(start));
}
pts = &pt[start >> VAX_PGSHIFT];