On Tue, Jun 22, 2021 at 08:44:19PM +0300, Anton Suvorov wrote:

Stack usage reduced (measured with allyesconfig):

Not just stack footprint, but also a whole lot cleaner code in general.

-			       bdevname(state->bdev, b), blk);
+			pr_err("Dev %pg: unable to read RDB block %d\n", state->bdev, blk);

-		       bdevname(state->bdev, b), blk);
+		pr_err("Dev %pg: RDB in block %d has bad checksum\n", state->bdev, blk);

-			pr_err("Dev %s: unable to read partition block %d\n",
-			       bdevname(state->bdev, b), blk);
+			pr_err("Dev %pg: unable to read partition block %d\n", state->bdev, blk);

[...]

Please keep the non-format string arguments on separate lines instead
of creating unreadable lines.