tree f92ad0274a97b10418fb4d5a1d811cd8264df473
parent fdb5d6cab638a2881687b59b27817c74d8efac76
parent fae8817ae804a682c6823ad1672438f39fc46c28
author Linus Torvalds <torvalds@linux-foundation.org> 1618677058 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1618677058 -0700
mergetag object fae8817ae804a682c6823ad1672438f39fc46c28
 type commit
 tag cxl-fixes-for-5.12-rc8
 tagger Dan Williams <dan.j.williams@intel.com> 1618628214 -0700
 
 cxl for 5.12-rc8
 
 - Fix support for CXL memory devices with registers offset from the BAR
   base.
 
 - Fix the reporting of device capacity.
 
 - Fix the driver commands list definition to be disconnected from the
   UAPI command list.
 
 - Replace percpu_ref with rwsem to fix initialization error path.
 
 - Fix leaks in the driver initialization error path.
 
 - Drop the power/ directory from CXL device sysfs.
 
 - Use the recommended sysfs helper for attribute 'show' implementations.
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Merge tag 'cxl-fixes-for-5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull CXL memory class fixes from Dan Williams:
 "A collection of fixes for the CXL memory class driver introduced in
  this release cycle.

  The driver was primarily developed on a work-in-progress QEMU
  emulation of the interface and we have since found a couple places
  where it hid spec compliance bugs in the driver, or had a spec
  implementation bug itself.

  The biggest change here is replacing a percpu_ref with an rwsem to
  cleanup a couple bugs in the error unwind path during ioctl device
  init. Lastly there were some minor cleanups to not export the
  power-management sysfs-ABI for the ioctl device, use the proper sysfs
  helper for emitting values, and prevent subtle bugs as new
  administration commands are added to the supported list.

  The bulk of it has appeared in -next save for the top commit which was
  found today and validated on a fixed-up QEMU model.

  Summary:

   - Fix support for CXL memory devices with registers offset from the
     BAR base.

   - Fix the reporting of device capacity.

   - Fix the driver commands list definition to be disconnected from the
     UAPI command list.

   - Replace percpu_ref with rwsem to fix initialization error path.

   - Fix leaks in the driver initialization error path.

   - Drop the power/ directory from CXL device sysfs.

   - Use the recommended sysfs helper for attribute 'show'
     implementations"

* tag 'cxl-fixes-for-5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/mem: Fix memory device capacity probing
  cxl/mem: Fix register block offset calculation
  cxl/mem: Force array size of mem_commands[] to CXL_MEM_COMMAND_ID_MAX
  cxl/mem: Disable cxl device power management
  cxl/mem: Do not rely on device_add() side effects for dev_set_name() failures
  cxl/mem: Fix synchronization mechanism for device removal vs ioctl operations
  cxl/mem: Use sysfs_emit() for attribute show routines