linux-kernel - Re: [PATCH v2 05/10] block: reduce stack footprint dealing with block device names

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Date:   Wed, 23 Jun 2021 08:45:02 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Anton Suvorov <warwish@...dex-team.ru>
Cc:     willy@...radead.org, dmtrmonakhov@...dex-team.ru,
        linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, viro@...iv.linux.org.uk
Subject: Re: [PATCH v2 05/10] block: reduce stack footprint dealing with
 block device names

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.