Fix end boundary of mapping for regions ending at offset 1 in a page.

From NetBSD PR#3441, Matthias Drochner <drochner@zelz26.zel.kfa-juelich.de>

diff --git a/sys/arch/i386/i386/machdep.c b/sys/arch/i386/i386/machdep.c
index 8522f40..31fe044 100644 (file)
--- a/sys/arch/i386/i386/machdep.c
+++ b/sys/arch/i386/i386/machdep.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: machdep.c,v 1.42 1997/02/24 04:05:48 downsj Exp $     */
+/*     $OpenBSD: machdep.c,v 1.43 1997/04/02 22:02:55 niklas Exp $     */
 /*     $NetBSD: machdep.c,v 1.202 1996/05/18 15:54:59 christos Exp $   */
 
 /*-
@@ -1681,7 +1681,7 @@ bus_mem_add_mapping(bpa, size, cacheable, bshp)
        vm_offset_t va;
 
        pa = i386_trunc_page(bpa);
-       endpa = i386_round_page((bpa + size) - 1);
+       endpa = i386_round_page(bpa + size);
 
 #ifdef DIAGNOSTIC
        if (endpa <= pa)
@@ -1728,7 +1728,7 @@ bus_space_unmap(t, bsh, size)
        case I386_BUS_SPACE_MEM:
                ex = iomem_ex;
                va = i386_trunc_page(bsh);
-               endva = i386_round_page((bsh + size) - 1);
+               endva = i386_round_page(bsh + size);
 
 #ifdef DIAGNOSTIC
                if (endva <= va)