[PATCH v6 0/5] ACPI: hotplug messages improvement

[Toshi Kani <toshi.kani@hp.com>]

This patchset improves logging messages for ACPI CPU, Memory, 
Container and Dock hotplug notify handlers.  The patchset 
introduces a set of new macro interfaces, acpi_handle_<level>(),
and uses them to update the notify handlers.

acpi_handle_<level>() appends "ACPI" prefix and ACPI object path
to the messages, which has similar usage model as dev_<level>().
This improves diagnosis of hotplug operations since an error
message in a log file identifies an object that caused an issue.

The patchset is based on the linux-next branch of linux-pm.git
tree.

v6:
 - Changed the interface name to acpi_handle_<level>(), and
   declared them in include/linux/acpi.h.
 - Added __printf(3,4) to acpi_handle_printk() prototype.
 - Documented the interfaces acquire the global namespace mutex
   and may not be called from interrupt context.

v5:
 - Added update for ACPI Dock hotplug error messages.
 - Added error status / ID info to the messages where needed.

v4:
 - Changed to use dev_<level>() where it is appropriate.

v3:
 - Changed acpi_pr_debug() to NOP when !DEBUG and !DYNAMIC_DEBUG.
   DYNAMIC_DEBUG will be supported later when necessary.
 - Added const to a path variable in acpi_printk().
 - Added more descriptions to the change log of patch 1/4.

v2:
 - Set buffer.pointer to NULL in acpi_printk().
 - Added acpi_pr_debug().

---
Toshi Kani (5):
 ACPI: Add acpi_handle_<level>() interfaces
 ACPI: Update CPU hotplug error messages
 ACPI: Update Memory hotplug error messages
 ACPI: Update Container hotplug error messages
 ACPI: Update Dock hotplug error messages

---
 drivers/acpi/acpi_memhotplug.c  | 24 ++++++++++++-----------
 drivers/acpi/container.c        | 10 ++--------
 drivers/acpi/dock.c             | 30 ++++++++++++++--------------
 drivers/acpi/processor_driver.c | 39 +++++++++++++++++++++++--------------
 drivers/acpi/utils.c            | 37 +++++++++++++++++++++++++++++++++++
 include/linux/acpi.h            | 43 +++++++++++++++++++++++++++++++++++++++++
 6 files changed, 133 insertions(+), 50 deletions(-)