From: Dave Jiang <dave.jiang@intel.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "linux-cxl@vger.kernel.org" <linux-cxl@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Davidlohr Bueso <dave@stgolabs.net>,
Ira Weiny <ira.weiny@intel.com>,
Alison Schofield <alison.schofield@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>
Subject: [GIT PULL] Compute Express Link (CXL) Fix for 6.9-rc7
Date: Fri, 3 May 2024 09:21:51 -0700 [thread overview]
Message-ID: <64b8cfc3-c2f2-487a-bced-8519690239a4@intel.com> (raw)
Hi Linus, please pull from
git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git tags/cxl-fixes-6.9-rc7
...to receive a fix for the CXL subsystem.
A late bug was reported by Robert Richter that the Restricted CXL Host
(RCH) support was missing in the CXL endpoint access_coordinate
calculation. The missing support causes the topology iterator to stumble over
a NULL pointer and triggers a kernel OOPS on a platform with CXL 1.1 support.
The fix bypasses RCH topology as the access_coordinate calculation is not
necessary since RCH does not support hotplug and the memory region exported
should be covered by the HMAT table already. A unit test is also added to
cxl_test to check against future regressions on the topology iterator.
This has build success notification from kbuild-robot. It has been in the -next
for several days with no reported issues.
---
The following changes since commit e67572cd2204894179d89bd7b984072f19313b03:
Linux 6.9-rc6 (2024-04-28 13:47:24 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git tags/cxl-fixes-6.9-rc7
for you to fetch changes up to 5d211c7090590033581175d6405ae40917ca3a06:
cxl: Fix cxl_endpoint_get_perf_coordinate() support for RCH (2024-04-29 09:03:26 -0700)
----------------------------------------------------------------
cxl fix for v6.9-rc7
- Add missing RCH support for endpoint access_coordinate calculation
----------------------------------------------------------------
Dave Jiang (1):
cxl: Fix cxl_endpoint_get_perf_coordinate() support for RCH
drivers/cxl/core/port.c | 15 ++++++++++++++-
tools/testing/cxl/test/cxl.c | 7 +++++++
2 files changed, 21 insertions(+), 1 deletion(-)
next reply other threads:[~2024-05-03 16:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-03 16:21 Dave Jiang [this message]
2024-05-03 23:26 ` [GIT PULL] Compute Express Link (CXL) Fix for 6.9-rc7 pr-tracker-bot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=64b8cfc3-c2f2-487a-bced-8519690239a4@intel.com \
--to=dave.jiang@intel.com \
--cc=Jonathan.Cameron@huawei.com \
--cc=alison.schofield@intel.com \
--cc=dan.j.williams@intel.com \
--cc=dave@stgolabs.net \
--cc=ira.weiny@intel.com \
--cc=linux-cxl@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=torvalds@linux-foundation.org \
--cc=vishal.l.verma@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).