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Date:   Sun, 22 Sep 2019 15:31:32 -0700
From:   Jakub Kicinski <>
To:     Thierry Reding <>
Cc:     "David S . Miller" <>,
        Giuseppe Cavallaro <>,
        Alexandre Torgue <>,
        Jose Abreu <>,
        Florian Fainelli <>,
        Jon Hunter <>,
        Bitan Biswas <>,,
Subject: Re: [PATCH] net: stmmac: Fix page pool size

On Fri, 20 Sep 2019 19:01:27 +0200, Thierry Reding wrote:
> From: Thierry Reding <>
> The size of individual pages in the page pool in given by an order. The
> order is the binary logarithm of the number of pages that make up one of
> the pages in the pool. However, the driver currently passes the number
> of pages rather than the order, so it ends up wasting quite a bit of
> memory.
> Fix this by taking the binary logarithm and passing that in the order
> field.
> Signed-off-by: Thierry Reding <>

Since this is a fix could we get a Fixes tag pointing to the commit
which introduced the regression?

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