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Diffstat (limited to 'arch/x86/mm/memtest.c')
-rw-r--r--arch/x86/mm/memtest.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/x86/mm/memtest.c b/arch/x86/mm/memtest.c
index c80b9fb95734..8dabbed409ee 100644
--- a/arch/x86/mm/memtest.c
+++ b/arch/x86/mm/memtest.c
@@ -9,6 +9,7 @@
#include <linux/memblock.h>
static u64 patterns[] __initdata = {
+ /* The first entry has to be 0 to leave memtest with zeroed memory */
0,
0xffffffffffffffffULL,
0x5555555555555555ULL,
@@ -110,15 +111,8 @@ void __init early_memtest(unsigned long start, unsigned long end)
return;
printk(KERN_INFO "early_memtest: # of tests: %d\n", memtest_pattern);
- for (i = 0; i < memtest_pattern; i++) {
+ for (i = memtest_pattern-1; i < UINT_MAX; --i) {
idx = i % ARRAY_SIZE(patterns);
do_one_pass(patterns[idx], start, end);
}
-
- if (idx > 0) {
- printk(KERN_INFO "early_memtest: wipe out "
- "test pattern from memory\n");
- /* additional test with pattern 0 will do this */
- do_one_pass(0, start, end);
- }
}