linux-kernel - Re: [PATCH net-next] net: page_pool: API cleanup and comments

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Message-ID: <20200217055736.GA15371@apalos.home>
Date:   Mon, 17 Feb 2020 07:57:36 +0200
From:   Ilias Apalodimas <ilias.apalodimas@...aro.org>
To:     David Miller <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, jonathan.lemon@...il.com,
        lorenzo@...nel.org, thomas.petazzoni@...tlin.com,
        jaswinder.singh@...aro.org, peppe.cavallaro@...com,
        alexandre.torgue@...com, joabreu@...opsys.com,
        mcoquelin.stm32@...il.com, hawk@...nel.org, kuba@...nel.org,
        ast@...nel.org, daniel@...earbox.net, john.fastabend@...il.com,
        linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, bpf@...r.kernel.org
Subject: Re: [PATCH net-next] net: page_pool: API cleanup and comments

On Sun, Feb 16, 2020 at 07:59:57PM -0800, David Miller wrote:
> From: David Miller <davem@...emloft.net>
> Date: Sun, 16 Feb 2020 19:53:00 -0800 (PST)
> 
> > From: Ilias Apalodimas <ilias.apalodimas@...aro.org>
> > Date: Sun, 16 Feb 2020 11:40:55 +0200
> > 
> >> Functions starting with __ usually indicate those which are exported,
> >> but should not be called directly. Update some of those declared in the
> >> API and make it more readable.
> >> 
> >> page_pool_unmap_page() and page_pool_release_page() were doing
> >> exactly the same thing. Keep the page_pool_release_page() variant
> >> and export it in order to show up on perf logs.
> >> Finally rename __page_pool_put_page() to page_pool_put_page() since we
> >> can now directly call it from drivers and rename the existing
> >> page_pool_put_page() to page_pool_put_full_page() since they do the same
> >> thing but the latter is trying to sync the full DMA area.
> >> 
> >> Also update netsec, mvneta and stmmac drivers which use those functions.
> >> 
> >> Suggested-by: Jonathan Lemon <jonathan.lemon@...il.com>
> >> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@...aro.org>
> > 
> > Applied to net-next, thanks.
> 
> Actually this doesn't compile, please respin:

Ooops :(
I was compiling for armv7, stmmac and mvneta are included but netsec isn't. 
Sorry for the noise, i'll send a v2

> 
> drivers/net/ethernet/socionext/netsec.c: In function ‘netsec_uninit_pkt_dring’:
> drivers/net/ethernet/socionext/netsec.c:1201:4: error: too few arguments to function ‘page_pool_put_page’
>     page_pool_put_page(dring->page_pool, page, false);
>     ^~~~~~~~~~~~~~~~~~
> In file included from drivers/net/ethernet/socionext/netsec.c:17:
> ./include/net/page_pool.h:172:6: note: declared here
>  void page_pool_put_page(struct page_pool *pool, struct page *page,
>       ^~~~~~~~~~~~~~~~~~

Thanks
/Ilias