linux-hardening - [PATCH v3 0/2] PCI/IOV: sriov

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Date: Wed, 14 Feb 2024 22:59:37 +0000
From: Jim Harris <jim.harris@...sung.com>
To: Davidlohr Bueso <dave@...olabs.net>, Jonathan Cameron
	<jonathan.cameron@...wei.com>, Dave Jiang <dave.jiang@...el.com>, "Alison
 Schofield" <alison.schofield@...el.com>, Vishal Verma
	<vishal.l.verma@...el.com>, Ira Weiny <ira.weiny@...el.com>, Dan Williams
	<dan.j.williams@...el.com>, Kees Cook <keescook@...omium.org>, "Gustavo A.
 R. Silva" <gustavoars@...nel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "linux-cxl@...r.kernel.org"
	<linux-cxl@...r.kernel.org>, "linux-hardening@...r.kernel.org"
	<linux-hardening@...r.kernel.org>, Leon Romanovsky <leonro@...dia.com>,
	"Jason Gunthorpe" <jgg@...dia.com>, Alex Williamson
	<alex.williamson@...hat.com>, "pierre.cregut@...nge.com"
	<pierre.cregut@...nge.com>
Subject: [PATCH v3 0/2] PCI/IOV: sriov_numvfs bug fixes

A deadlock condition was discovered by SPDK when removing an SRIOV-enabled and
VFIO-attached device, with a specific threading model. While discussing this
on the mailing list, a separate issue around updating sriov_numvfs and its
kobject_uevent() was also discovered. This series fixes both of those issues.

---
v1 => v2:
* No code changes
* Updated commit messages per feedback from Bjorn
* Added Leon's Reviewed-by tags
* Moved bulk of the v1 cover letter to the revert patch commit message where
  it belonged

v2 => v3:
* Update iov->num_VFs before VFs are probed

---

Jim Harris (2):
      PCI/IOV: Revert "PCI/IOV: Serialize sysfs sriov_numvfs reads vs writes"
      PCI/IOV: set iov->num_VFs before VFs are probed


 drivers/pci/iov.c |   14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

--