blk: Use macros for block device vendor/product/rev string size

So far these are using magic numbers. Replace them with macros.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/include/blk.h b/include/blk.h
index a106f9ca0e5922170c48864060f9a7460666f35e..27abfddb94f7ba2ddf9ffd4f1a35a62c7ec1d6e0 100644 (file)
--- a/include/blk.h
+++ b/include/blk.h
@@ -36,6 +36,10 @@ enum if_type {
        IF_TYPE_COUNT,                  /* Number of interface types */
 };
 
+#define BLK_VEN_SIZE           40
+#define BLK_PRD_SIZE           20
+#define BLK_REV_SIZE           8
+
 /*
  * With driver model (CONFIG_BLK) this is uclass platform data, accessible
  * with dev_get_uclass_platdata(dev)
@@ -60,9 +64,9 @@ struct blk_desc {
        lbaint_t        lba;            /* number of blocks */
        unsigned long   blksz;          /* block size */
        int             log2blksz;      /* for convenience: log2(blksz) */
-       char            vendor[40+1];   /* IDE model, SCSI Vendor */
-       char            product[20+1];  /* IDE Serial no, SCSI product */
-       char            revision[8+1];  /* firmware revision */
+       char            vendor[BLK_VEN_SIZE + 1]; /* device vendor string */
+       char            product[BLK_PRD_SIZE + 1]; /* device product number */
+       char            revision[BLK_REV_SIZE + 1]; /* firmware revision */
 #if CONFIG_IS_ENABLED(BLK)
        /*
         * For now we have a few functions which take struct blk_desc as a