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Left-shift of negative values is UB.

This commit is contained in:
joerg 2015-11-27 13:51:24 +00:00
parent b5e21344a8
commit 1caddb70de
1 changed files with 3 additions and 3 deletions
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6
sys/arch/sparc64/sparc64/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.299 2015/09/08 13:18:06 nakayama Exp $ */
/* $NetBSD: pmap.c,v 1.300 2015/11/27 13:51:24 joerg Exp $ */
/*
*
* Copyright (C) 1996-1999 Eduardo Horvath.
@ -26,7 +26,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.299 2015/09/08 13:18:06 nakayama Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.300 2015/11/27 13:51:24 joerg Exp $");
#undef NO_VCACHE /* Don't forget the locked TLB in dostart */
#define HWREF
@ -1418,7 +1418,7 @@ pmap_growkernel(vaddr_t maxkvaddr)
}
DPRINTF(PDB_GROW, ("pmap_growkernel(%lx...%lx)\n", kbreak, maxkvaddr));
/* Align with the start of a page table */
for (kbreak &= (-1 << PDSHIFT); kbreak < maxkvaddr;
for (kbreak &= ((~0ULL) << PDSHIFT); kbreak < maxkvaddr;
kbreak += (1 << PDSHIFT)) {
if (pseg_get(pm, kbreak) & TLB_V)
continue;