linux-kernel - Re: [PATCH] dma-debug: increase HASH

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Message-ID: <CANn89iK5oLcLm2bL=Q5+oTrKrd1q_QkEQpAQSfyjDSSeM22Dfw@mail.gmail.com>
Date:   Tue, 10 Dec 2019 07:04:43 -0800
From:   Eric Dumazet <edumazet@...gle.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Christoph Hellwig <hch@....de>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH] dma-debug: increase HASH_SIZE

On Tue, Dec 10, 2019 at 6:55 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:

> JFTR, this increases dma_entry_hash size by 327680 bytes, and pushes
> a few more boards beyond their bootloader-imposed kernel size limits.
>
> Disabling CONFIG_DMA_API_DEBUG fixes that.
> Of course the real fix is to fix the bootloaders...
>

Hi Geert

Maybe we can make the hash size arch-dependent, or better dynamically
allocate this memory ?