[PATCH] powerpc: Add a is_kernel_addr() macro

There's a bunch of code that compares an address with KERNELBASE to see if
it's a "kernel address", ie. >= KERNELBASE. The proper test is actually to
compare with PAGE_OFFSET, since we're going to change KERNELBASE soon.

So replace all of them with an is_kernel_addr() macro that does that.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 465b75c5647e..22612ed5379c 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -1013,7 +1013,7 @@ static long check_bp_loc(unsigned long addr)
         unsigned int instr;
 
         addr &= ~3;
-        if (addr < KERNELBASE) {
+        if (!is_kernel_addr(addr)) {
                 printf("Breakpoints may only be placed at kernel addresses\n");
                 return 0;
         }
@@ -1064,7 +1064,7 @@ bpt_cmds(void)
                 dabr.address = 0;
                 dabr.enabled = 0;
                 if (scanhex(&dabr.address)) {
-                        if (dabr.address < KERNELBASE) {
+                        if (!is_kernel_addr(dabr.address)) {
                                 printf(badaddr);
                                 break;
                         }