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Date:   Fri, 23 Dec 2016 19:51:56 +0100
From:   Marek Vasut <marek.vasut@...il.com>
To:     Geliang Tang <geliangtang@...il.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Richard Weinberger <richard@....at>,
        Cyrille Pitchen <cyrille.pitchen@...el.com>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd: mtdswap: use MTDSWAP_ECNT_MIN/MAX

On 12/20/2016 02:54 PM, Geliang Tang wrote:
> Since macros MTDSWAP_ECNT_MIN() and MTDSWAP_ECNT_MAX() have been
> defined in mtdswap.c, use them instead of open-coding.
> 
> Signed-off-by: Geliang Tang <geliangtang@...il.com>

Sorry for getting to this so late. The patch is fine, but if you grep
for 'rb_first' in the mtdswap driver , you'll see you can also use the
MTDSWAP_ECNT_MIN macro in mtdswap_map_free_block() and in
mtdswap_pick_gc_blk() . Can you fix those too ?

Otherwise:
Acked-by: Marek Vasut <marek.vasut@...il.com>

> ---
>  drivers/mtd/mtdswap.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c
> index c40e2c9..f12879a 100644
> --- a/drivers/mtd/mtdswap.c
> +++ b/drivers/mtd/mtdswap.c
> @@ -1235,10 +1235,8 @@ static int mtdswap_show(struct seq_file *s, void *data)
>  
>  		if (root->rb_node) {
>  			count[i] = d->trees[i].count;
> -			min[i] = rb_entry(rb_first(root), struct swap_eb,
> -					rb)->erase_count;
> -			max[i] = rb_entry(rb_last(root), struct swap_eb,
> -					rb)->erase_count;
> +			min[i] = MTDSWAP_ECNT_MIN(root);
> +			max[i] = MTDSWAP_ECNT_MAX(root);
>  		} else
>  			count[i] = 0;
>  	}
> 


-- 
Best regards,
Marek Vasut

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