linux-kernel - [PATCH net-next v2 0/2] xsk: respect the offsets when copying frags

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Message-ID: <20250426081220.40689-1-minhquangbui99@gmail.com>
Date: Sat, 26 Apr 2025 15:12:18 +0700
From: Bui Quang Minh <minhquangbui99@...il.com>
To: netdev@...r.kernel.org
Cc: Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	"David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
	Alexander Lobakin <aleksander.lobakin@...el.com>,
	bpf@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Bui Quang Minh <minhquangbui99@...il.com>
Subject: [PATCH net-next v2 0/2] xsk: respect the offsets when copying frags

Hi everyone,

In commit 560d958c6c68 ("xsk: add generic XSk &xdp_buff -> skb
conversion"), we introduce a helper to convert zerocopy xdp_buff to skb.
However, in the frag copy, we mistakenly ignore the frag's offset. This
series adds the missing offset when copying frags in
xdp_copy_frags_from_zc(). This function is not used anywhere so no
backport is needed.

This series also makes xdp_copy_frags_from_zc() use page allocation API
page_pool_dev_alloc() instead of page_pool_dev_alloc_netmem() to avoid
possible confusion of the returned value.

Thanks,
Quang Minh.

Bui Quang Minh (2):
  xsk: respect the offsets when copying frags
  xsk: convert xdp_copy_frags_from_zc() to use page_pool_dev_alloc()

 net/core/xdp.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

-- 
2.43.0