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-rw-r--r--kernel/range.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/kernel/range.c b/kernel/range.c
index eb911dbce267..322ea8e93e4b 100644
--- a/kernel/range.c
+++ b/kernel/range.c
@@ -4,7 +4,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/sort.h>
-
+#include <linux/string.h>
#include <linux/range.h>
int add_range(struct range *range, int az, int nr_range, u64 start, u64 end)
@@ -32,9 +32,8 @@ int add_range_with_merge(struct range *range, int az, int nr_range,
if (start >= end)
return nr_range;
- /* Try to merge it with old one: */
+ /* get new start/end: */
for (i = 0; i < nr_range; i++) {
- u64 final_start, final_end;
u64 common_start, common_end;
if (!range[i].end)
@@ -45,14 +44,16 @@ int add_range_with_merge(struct range *range, int az, int nr_range,
if (common_start > common_end)
continue;
- final_start = min(range[i].start, start);
- final_end = max(range[i].end, end);
+ /* new start/end, will add it back at last */
+ start = min(range[i].start, start);
+ end = max(range[i].end, end);
- /* clear it and add it back for further merge */
- range[i].start = 0;
- range[i].end = 0;
- return add_range_with_merge(range, az, nr_range,
- final_start, final_end);
+ memmove(&range[i], &range[i + 1],
+ (nr_range - (i + 1)) * sizeof(range[i]));
+ range[nr_range - 1].start = 0;
+ range[nr_range - 1].end = 0;
+ nr_range--;
+ i--;
}
/* Need to add it: */