This is a first step towards getting rid of avail_start and avail_end in the

kernel, currently limited to low-hanging fruit: these variables were used
by bus_dma to specify the range in which to allocate memory, back when
uvm_pglistalloc() was stupid and would not walk the vm_physseg[].

Nowadays, except on some platforms for early initialization, these variables
are not used, or do not need to be global variables. Therefore:
- remove `extern' declarations of avail_start and avail_end (or close cousins,
  such as arm physical_start and physical_end) from files which no longer need
  to use them.
- make them local variables whenever possible.
- remove them when they are assigned to but no longer used.

1 files changed, 2 insertions, 2 deletions

diff --git a/sys/arch/hppa64/hppa64/machdep.c b/sys/arch/hppa64/hppa64/machdep.c
index 68e9788f868..b0d424d717d 100644
--- a/sys/arch/hppa64/hppa64/machdep.c
+++ b/sys/arch/hppa64/hppa64/machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: machdep.c,v 1.26 2010/07/24 21:27:57 kettenis Exp $	*/
+/*	$OpenBSD: machdep.c,v 1.27 2010/11/20 20:33:23 miod Exp $	*/
 
 /*
  * Copyright (c) 2005 Michael Shalayeff
@@ -121,7 +121,6 @@ u_int	fpu_version;
 
 dev_t	bootdev;
 int	physmem, resvmem, resvphysmem, esym;
-paddr_t	avail_end;
 
 /*
  * Things for MI glue to stick on.
@@ -182,6 +181,7 @@ hppa_init(start)
 {
 	extern int kernel_text;
 	int error;
+	paddr_t	avail_end;
 
 	mtctl((long)&cpu0_info, 24);