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Subject: Re: [PATCH net-next v10 06/14] page_pool: convert to use netmem
From: Paolo Abeni <pabeni@redhat.com>
To: Mina Almasry <almasrymina@google.com>, netdev@vger.kernel.org, 
	linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, 
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Cc: "David S. Miller" <davem@davemloft.net>, Eric Dumazet
 <edumazet@google.com>,  Jakub Kicinski <kuba@kernel.org>, Donald Hunter
 <donald.hunter@gmail.com>, Jonathan Corbet <corbet@lwn.net>, Richard
 Henderson <richard.henderson@linaro.org>, Ivan Kokshaysky
 <ink@jurassic.park.msu.ru>, Matt Turner <mattst88@gmail.com>, Thomas
 Bogendoerfer <tsbogend@alpha.franken.de>, "James E.J. Bottomley"
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 <song@kernel.org>, Yonghong Song <yonghong.song@linux.dev>, John Fastabend
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 Herbert Xu <herbert@gondor.apana.org.au>, David Ahern <dsahern@kernel.org>,
 Willem de Bruijn <willemdebruijn.kernel@gmail.com>,  Shuah Khan
 <shuah@kernel.org>, Sumit Semwal <sumit.semwal@linaro.org>, Christian
 =?ISO-8859-1?Q?K=F6nig?= <christian.koenig@amd.com>, Pavel Begunkov
 <asml.silence@gmail.com>, David Wei <dw@davidwei.uk>, Jason Gunthorpe
 <jgg@ziepe.ca>, Yunsheng Lin <linyunsheng@huawei.com>, Shailend Chand
 <shailend@google.com>, Harshitha Ramamurthy <hramamurthy@google.com>,
 Shakeel Butt <shakeel.butt@linux.dev>, Jeroen de Borst
 <jeroendb@google.com>, Praveen Kaligineedi <pkaligineedi@google.com>, 
 linux-mm@kvack.org, Matthew Wilcox <willy@infradead.org>
Date: Tue, 04 Jun 2024 12:23:48 +0200
In-Reply-To: <20240530201616.1316526-7-almasrymina@google.com>
References: <20240530201616.1316526-1-almasrymina@google.com>
	 <20240530201616.1316526-7-almasrymina@google.com>
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On Thu, 2024-05-30 at 20:16 +0000, Mina Almasry wrote:
> diff --git a/include/trace/events/page_pool.h b/include/trace/events/page=
_pool.h
> index 6834356b2d2ae..c5b6383ff2760 100644
> --- a/include/trace/events/page_pool.h
> +++ b/include/trace/events/page_pool.h
> @@ -42,51 +42,52 @@ TRACE_EVENT(page_pool_release,
>  TRACE_EVENT(page_pool_state_release,
> =20
>  	TP_PROTO(const struct page_pool *pool,
> -		 const struct page *page, u32 release),
> +		 netmem_ref netmem, u32 release),

This causes a sparse warning, as the caller is still passing a 'page'
argument.

> =20
> -	TP_ARGS(pool, page, release),
> +	TP_ARGS(pool, netmem, release),
> =20
>  	TP_STRUCT__entry(
>  		__field(const struct page_pool *,	pool)
> -		__field(const struct page *,		page)
> +		__field(netmem_ref,			netmem)
>  		__field(u32,				release)
>  		__field(unsigned long,			pfn)
>  	),
> =20
>  	TP_fast_assign(
>  		__entry->pool		=3D pool;
> -		__entry->page		=3D page;
> +		__entry->netmem		=3D netmem;
>  		__entry->release	=3D release;
> -		__entry->pfn		=3D page_to_pfn(page);
> +		__entry->pfn		=3D netmem_to_pfn(netmem);
>  	),
> =20
> -	TP_printk("page_pool=3D%p page=3D%p pfn=3D0x%lx release=3D%u",
> -		  __entry->pool, __entry->page, __entry->pfn, __entry->release)
> +	TP_printk("page_pool=3D%p netmem=3D%lu pfn=3D0x%lx release=3D%u",
> +		  __entry->pool, (__force unsigned long)__entry->netmem,
> +		  __entry->pfn, __entry->release)
>  );
> =20
>  TRACE_EVENT(page_pool_state_hold,
> =20
>  	TP_PROTO(const struct page_pool *pool,
> -		 const struct page *page, u32 hold),
> +		 netmem_ref netmem, u32 hold),

Same here.

Thanks,

Paolo