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Subject: Re: [PATCH v3 3/3] mtd/nand : workaround for Freescale FCM to
 support large-page Nand chip
From: Artem Bityutskiy <dedekind1@gmail.com>
Reply-To: dedekind1@gmail.com
To: b35362@freescale.com
Cc: dwmw2@infradead.org, Artem.Bityutskiy@nokia.com,
        linux-mtd@lists.infradead.org, linuxppc-dev@lists.ozlabs.org,
        akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
        leoli@freescale.com, scottwood@freescale.com,
        Liu Shuo <Shuo.Liu@freescale.com>,
        Shengzhou Liu <Shengzhou.Liu@freescale.com>
Date: Tue, 22 Nov 2011 23:04:18 +0200
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On Tue, 2011-11-15 at 17:29 +0800, b35362@freescale.com wrote:
> +               /*
> +                * Freescale FCM controller has a 2K size limitation of buffer
> +                * RAM, so elbc_fcm_ctrl->buffer have to be used if writesize
> +                * of chip is greater than 2048.
> +                * We malloc a large enough buffer at this point, because we
> +                * don't know writesize before calling nand_scan(). We will
> +                * re-malloc later if needed.
> +                */
> +               elbc_fcm_ctrl->buffer = kmalloc(4096 * 6, GFP_KERNEL);
> +               if (!elbc_fcm_ctrl->buffer)
> +                       return -ENOMEM; 

Why 4096*6? Judging from the comment it should be 4096.

Artem.