[PATCH v4 08/15] luks2: Split idx into three variables: keyslot_key, digest_key, segment_key.

[Glenn Washburn]

Introduce new variables keyslot_key, digest_key, and segment_key which
represent the integer key of the item in the respective associative array
when looping over the array items. This replaces using a generically
named variable named "idx" used for all three values.

Signed-off-by: Glenn Washburn <development@efficientek.com>
---
 grub-core/disk/luks2.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/grub-core/disk/luks2.c b/grub-core/disk/luks2.c
index d96764a02..1a4034f28 100644
--- a/grub-core/disk/luks2.c
+++ b/grub-core/disk/luks2.c
@@ -259,12 +259,12 @@ luks2_get_keyslot (grub_luks2_keyslot_t *k, 
grub_luks2_digest_t *d, grub_luks2_s
 {
   grub_json_t keyslots, keyslot, digests, digest, segments, segment;
   grub_size_t i, size;
-  grub_uint64_t idx;
+  grub_uint64_t keyslot_key, digest_key, segment_key;
 
   /* Get nth keyslot */
   if (grub_json_getvalue (&keyslots, root, "keyslots") ||
       grub_json_getchild (&keyslot, &keyslots, keyslot_idx) ||
-      grub_json_getuint64 (&idx, &keyslot, NULL) ||
+      grub_json_getuint64 (&keyslot_key, &keyslot, NULL) ||
       grub_json_getchild (&keyslot, &keyslot, 0) ||
       luks2_parse_keyslot (k, &keyslot))
     return grub_error (GRUB_ERR_BAD_ARGUMENT, "Could not parse keyslot 
%"PRIuGRUB_SIZE, keyslot_idx);
@@ -276,11 +276,12 @@ luks2_get_keyslot (grub_luks2_keyslot_t *k, 
grub_luks2_digest_t *d, grub_luks2_s
   for (i = 0; i < size; i++)
     {
       if (grub_json_getchild (&digest, &digests, i) ||
+         grub_json_getuint64 (&digest_key, &digest, NULL) ||
           grub_json_getchild (&digest, &digest, 0) ||
           luks2_parse_digest (d, &digest))
        return grub_error (GRUB_ERR_BAD_ARGUMENT, "Could not parse digest 
%"PRIuGRUB_SIZE, i);
 
-      if ((d->keyslots & (1 << idx)))
+      if ((d->keyslots & (1 << keyslot_key)))
        break;
     }
   if (i == size)
@@ -293,12 +294,12 @@ luks2_get_keyslot (grub_luks2_keyslot_t *k, 
grub_luks2_digest_t *d, grub_luks2_s
   for (i = 0; i < size; i++)
     {
       if (grub_json_getchild (&segment, &segments, i) ||
-         grub_json_getuint64 (&idx, &segment, NULL) ||
+         grub_json_getuint64 (&segment_key, &segment, NULL) ||
          grub_json_getchild (&segment, &segment, 0) ||
           luks2_parse_segment (s, &segment))
        return grub_error (GRUB_ERR_BAD_ARGUMENT, "Could not parse segment 
%"PRIuGRUB_SIZE, i);
 
-      if ((d->segments & (1 << idx)))
+      if ((d->segments & (1 << segment_key)))
        break;
     }
   if (i == size)
-- 
2.27.0