[PATCH 3/5] fwu: use FWU_MAX_STATE_BANKS for bank_state array

[Dario Binacchi]

Replace the hardcoded size of the bank_state array with
FWU_MAX_STATE_BANKS to improve readability and ensure consistency
between the structure definition and code that relies on it,
including the mkfwumdata tool.

Signed-off-by: Dario Binacchi <dario.binacchi at amarulasolutions.com>
---

 include/fwu_mdata.h | 5 ++++-
 tools/mkfwumdata.c  | 5 +----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/fwu_mdata.h b/include/fwu_mdata.h
index 43b3487c4a23..b84a9987f769 100644
--- a/include/fwu_mdata.h
+++ b/include/fwu_mdata.h
@@ -94,6 +94,9 @@ struct fwu_mdata {
 } __packed;
 
 #else /* CONFIG_FWU_MDATA_V1 */
+
+#define FWU_MAX_STATE_BANKS			4
+
 /**
  * struct fwu_mdata - FWU metadata structure for multi-bank updates
  * @crc32: crc32 value for the FWU metadata
@@ -120,7 +123,7 @@ struct fwu_mdata {
 	uint32_t metadata_size;
 	uint16_t desc_offset;
 	uint16_t reserved1;
-	uint8_t  bank_state[4];
+	uint8_t  bank_state[FWU_MAX_STATE_BANKS];
 	uint32_t reserved2;
 
 	// struct fwu_fw_store_desc fw_desc;
diff --git a/tools/mkfwumdata.c b/tools/mkfwumdata.c
index 0d1697622e6a..c2fd3d4232f5 100644
--- a/tools/mkfwumdata.c
+++ b/tools/mkfwumdata.c
@@ -30,9 +30,6 @@ typedef uint64_t u64;
 #define CONFIG_FWU_NUM_BANKS		0
 #define CONFIG_FWU_NUM_IMAGES_PER_BANK	0
 
-/* version 2 supports maximum of 4 banks */
-#define MAX_BANKS_V2			4
-
 #include <fwu_mdata.h>
 
 static const char *opts_short = "b:i:a:p:v:V:gh";
@@ -292,7 +289,7 @@ static void fwu_fill_version_specific_mdata(struct fwu_mdata_object *mobj)
 	mdata->metadata_size = mobj->size;
 	mdata->desc_offset = sizeof(struct fwu_mdata);
 
-	for (i = 0; i < MAX_BANKS_V2; i++)
+	for (i = 0; i < FWU_MAX_STATE_BANKS; i++)
 		mdata->bank_state[i] = i < mobj->banks ?
 			FWU_BANK_ACCEPTED : FWU_BANK_INVALID;
 
-- 
2.43.0