[PATCH 3/4] memtest: exclude page starting at address 0.

[Renaud Barbier]

memtest fails when a reserved sdram region is at the bank start at
address 0. This patch supports the exclusion of memory region at
the bank start.

Tested on P2020RDB and DA923RC, qemuarm versatilepb.

Signed-off-by: Renaud Barbier <renaud.barbier at ge.com>
---
 commands/memtest.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/commands/memtest.c b/commands/memtest.c
index c82badc..a71576e 100644
--- a/commands/memtest.c
+++ b/commands/memtest.c
@@ -88,11 +88,11 @@ static int request_memtest_regions(struct list_head *list)
 				 * remember last used element
 				 */
 				start = PAGE_ALIGN(bank->res->start);
-				end = PAGE_ALIGN_DOWN(r->start) - 1;
-				size = end - start + 1;
+				end = PAGE_ALIGN_DOWN(r->start);
 				r_prev = r;
-				if (start >= end)
+				if (start == end)
 					continue;
+				size = end - start;
 
 				ret = alloc_memtest_region(list, start, size);
 				if (ret < 0)
@@ -103,12 +103,12 @@ static int request_memtest_regions(struct list_head *list)
 			 * Between used regions
 			 */
 			start = PAGE_ALIGN(r_prev->end);
-			end = PAGE_ALIGN_DOWN(r->start) - 1;
-			size = end - start + 1;
+			end = PAGE_ALIGN_DOWN(r->start);
 			r_prev = r;
 			if (start >= end)
 				continue;
 
+			size = end - start;
 			ret = alloc_memtest_region(list, start, size);
 			if (ret < 0)
 				return ret;
-- 
1.7.1