From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 3 May 2024 23:21:05 +0000 (-0700)
Subject: Merge tag 'cxl-fixes-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
X-Git-Tag: v6.9-rc7~13
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=7367539ad4b0f8f9b396baf02110962333719a48;p=linux-block.git

Merge tag 'cxl-fixes-6.9-rc7' of git://git./linux/kernel/git/cxl/cxl

Pull cxl fix from Dave Jiang:
 "Add missing RCH support for endpoint access_coordinate calculation.

  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"

* tag 'cxl-fixes-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl: Fix cxl_endpoint_get_perf_coordinate() support for RCH
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7367539ad4b0f8f9b396baf02110962333719a48