[PATCH 2/3] mkimage: Skip adding non-existent IDs to a list

[Naoki Hayama]

In show_valid_options(), this patch introduces checking whether
a category has an entry ID. If not, adding it to a list for output
is skipped before calling qsort().
This patch will affect all kinds of image header categories
(-A, -C, -O and -T flags).

Signed-off-by: Naoki Hayama <naoki.hayama at lineo.co.jp>
---

 tools/mkimage.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/mkimage.c b/tools/mkimage.c
index 43078d075c..e78608293e 100644
--- a/tools/mkimage.c
+++ b/tools/mkimage.c
@@ -51,8 +51,13 @@ static int show_valid_options(enum ih_category category)
 		return -ENOMEM;
 
 	/* Sort the names in order of short name for easier reading */
-	for (item = 0; item < count; item++)
-		order[item] = item;
+	for (i = 0, item = 0; i < count; i++, item++) {
+		while (!genimg_cat_has_id(category, item) && i < count) {
+			item++;
+			count--;
+		}
+		order[i] = item;
+	}
 	cur_category = category;
 	qsort(order, count, sizeof(int), h_compare_category_name);
 
-- 
2.17.1