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Date:   Thu, 4 Jul 2019 14:45:59 +0000
From:   Jose Abreu <>
To:     Jesper Dangaard Brouer <>,
        Jose Abreu <>
CC:     "" <>,
        "" <>,
        Joao Pinto <>,
        "David S . Miller" <>,
        Giuseppe Cavallaro <>,
        Alexandre Torgue <>,
        Maxime Coquelin <>,
        Maxime Ripard <>,
        Chen-Yu Tsai <>
Subject: RE: [PATCH net-next 3/3] net: stmmac: Introducing support for Page

From: Jesper Dangaard Brouer <>

> The page_pool_request_shutdown() API return indication if there are any
> in-flight frames/pages, to know when it is safe to call
> page_pool_free(), which you are also missing a call to.
> This page_pool_request_shutdown() is only intended to be called from
> xdp_rxq_info_unreg() code, that handles and schedule a work queue if it
> need to wait for in-flight frames/pages.

So you mean I can't call it or I should implement the same deferred work 

Notice that in stmmac case there will be no in-flight frames/pages 
because we free them all before calling this ...

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