linux-kernel - [PATCH net-next 1/7] page_pool: add page_pool_dev_alloc

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Message-ID: <20241218174435.1445282-2-aleksander.lobakin@intel.com>
Date: Wed, 18 Dec 2024 18:44:29 +0100
From: Alexander Lobakin <aleksander.lobakin@...el.com>
To: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Cc: Alexander Lobakin <aleksander.lobakin@...el.com>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	John Fastabend <john.fastabend@...il.com>,
	Andrii Nakryiko <andrii@...nel.org>,
	"Jose E. Marchesi" <jose.marchesi@...cle.com>,
	Toke Høiland-Jørgensen <toke@...hat.com>,
	Magnus Karlsson <magnus.karlsson@...el.com>,
	Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	Jason Baron <jbaron@...mai.com>,
	Casey Schaufler <casey@...aufler-ca.com>,
	Nathan Chancellor <nathan@...nel.org>,
	bpf@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH net-next 1/7] page_pool: add page_pool_dev_alloc_netmem()

Similarly to other _dev shorthands, add one for page_pool_alloc_netmem()
to allocate a netmem using the default Rx GFP flags (ATOMIC | NOWARN) to
make the page -> netmem transition of drivers easier.

Signed-off-by: Alexander Lobakin <aleksander.lobakin@...el.com>
---
 include/net/page_pool/helpers.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/net/page_pool/helpers.h b/include/net/page_pool/helpers.h
index 776a3008ac28..543f54fa3020 100644
--- a/include/net/page_pool/helpers.h
+++ b/include/net/page_pool/helpers.h
@@ -144,6 +144,15 @@ static inline netmem_ref page_pool_alloc_netmem(struct page_pool *pool,
 	return netmem;
 }
 
+static inline netmem_ref page_pool_dev_alloc_netmem(struct page_pool *pool,
+						    unsigned int *offset,
+						    unsigned int *size)
+{
+	gfp_t gfp = GFP_ATOMIC | __GFP_NOWARN;
+
+	return page_pool_alloc_netmem(pool, offset, size, gfp);
+}
+
 static inline struct page *page_pool_alloc(struct page_pool *pool,
 					   unsigned int *offset,
 					   unsigned int *size, gfp_t gfp)
-- 
2.47.1