linux-kernel - [RFC 0/2] fix two bugs related to page

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Message-ID: <20240912124514.2329991-1-linyunsheng@huawei.com>
Date: Thu, 12 Sep 2024 20:45:11 +0800
From: Yunsheng Lin <linyunsheng@...wei.com>
To: <davem@...emloft.net>, <kuba@...nel.org>, <pabeni@...hat.com>
CC: <liuyonglong@...wei.com>, <fanghaiqing@...wei.com>, Yunsheng Lin
	<linyunsheng@...wei.com>, Alexander Lobakin <aleksander.lobakin@...el.com>,
	Robin Murphy <robin.murphy@....com>, Alexander Duyck
	<alexander.duyck@...il.com>, IOMMU <iommu@...ts.linux.dev>, Alexei
 Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, Jesper
 Dangaard Brouer <hawk@...nel.org>, John Fastabend <john.fastabend@...il.com>,
	Matthias Brugger <matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, <netdev@...r.kernel.org>,
	<intel-wired-lan@...ts.osuosl.org>, <bpf@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-mediatek@...ts.infradead.org>
Subject: [RFC 0/2] fix two bugs related to page_pool

Patch 1 fix a possible time window problem for pagw_pool.
Patch 2 fix the kernel crash problem at iommu_get_dma_domain
reported in [1].

1. https://lore.kernel.org/lkml/8067f204-1380-4d37-8ffd-007fc6f26738@kernel.org/T/

CC: Alexander Lobakin <aleksander.lobakin@...el.com>
CC: Robin Murphy <robin.murphy@....com>
CC: Alexander Duyck <alexander.duyck@...il.com>
CC: IOMMU <iommu@...ts.linux.dev>

Yunsheng Lin (2):
  page_pool: fix timing for checking and disabling napi_local
  page_pool: fix IOMMU crash when driver has already unbound

 drivers/net/ethernet/freescale/fec_main.c     |   8 +-
 drivers/net/ethernet/intel/iavf/iavf_txrx.c   |   6 +-
 drivers/net/ethernet/intel/idpf/idpf_txrx.c   |  14 +-
 drivers/net/ethernet/intel/libeth/rx.c        |   2 +-
 .../net/ethernet/mellanox/mlx5/core/en/xdp.c  |   3 +-
 drivers/net/netdevsim/netdev.c                |   6 +-
 drivers/net/wireless/mediatek/mt76/mt76.h     |   2 +-
 include/linux/mm_types.h                      |   2 +-
 include/linux/skbuff.h                        |   1 +
 include/net/libeth/rx.h                       |   3 +-
 include/net/netmem.h                          |   2 +-
 include/net/page_pool/helpers.h               |  11 ++
 include/net/page_pool/types.h                 |  15 +-
 net/core/devmem.c                             |   2 +-
 net/core/page_pool.c                          | 176 +++++++++++++++---
 net/core/page_pool_priv.h                     |   9 +-
 net/core/skbuff.c                             |   3 +-
 net/core/xdp.c                                |   3 +-
 18 files changed, 219 insertions(+), 49 deletions(-)

-- 
2.33.0