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Date:   Tue, 30 Apr 2019 00:06:06 +0200
From:   Andrew Lunn <>
To:     Esben Haabendal <>
Cc:, "David S. Miller" <>,
        Michal Simek <>,
        Yang Wei <>,
        Luis Chamberlain <>,
        YueHaibing <>,,
Subject: Re: [PATCH 03/12] net: ll_temac: Fix support for 64-bit platforms

On Mon, Apr 29, 2019 at 10:34:13AM +0200, Esben Haabendal wrote:
> The use of buffer descriptor APP4 field (32-bit) for storing skb pointer
> obviously does not work on 64-bit platforms.
> As APP3 is also unused, we can use that to store the other half of 64-bit
> pointer values.
> Contrary to what is hinted at in commit message of commit 15bfe05c8d63
> ("net: ethernet: xilinx: Mark XILINX_LL_TEMAC broken on 64-bit")
> there are no other pointers stored in cdmac_bd.
> Signed-off-by: Esben Haabendal <>

Reviewed-by: Andrew Lunn <>


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