Rafael J. Wysocki 5e0fcc5ad3 ACPI: CPPC: Do not prevent CPPC from working in the future ... commit 4f4179fcf4 upstream. There is a problem with the current revision checks in is_cppc_supported() that they essentially prevent the CPPC support from working if a new _CPC package format revision being a proper superset of the v3 and only causing _CPC to return a package with more entries (while retaining the types and meaning of the entries defined by the v3) is introduced in the future and used by the platform firmware. In that case, as long as the number of entries in the _CPC return package is at least CPPC_V3_NUM_ENT, it should be perfectly fine to use the v3 support code and disregard the additional package entries added by the new package format revision. For this reason, drop is_cppc_supported() altogether, put the revision checks directly into acpi_cppc_processor_probe() so they are easier to follow and rework them to take the case mentioned above into account. Fixes: 4773e77cdc ("ACPI / CPPC: Add support for CPPC v3") Cc: 4.18+ <stable@vger.kernel.org> # 4.18+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-08-25 11:18:15 +02:00
..
platform	ACPICA: Linux: move ACPI_DEBUG_DEFAULT flag out of ifndef	2019-05-13 10:34:21 +02:00
acbuffer.h
acconfig.h	ACPICA: Increase total number of possible Owner IDs	2019-08-21 00:00:36 +02:00
acexcep.h	ACPICA: Fix exception code class checks	2021-03-04 10:26:14 +01:00
acnames.h
acoutput.h
acpi.h
acpi_bus.h	ACPI: fix NULL pointer dereference	2021-08-08 09:04:08 +02:00
acpi_drivers.h	Linux 5.2-rc4	2019-06-14 14:18:53 -06:00
acpi_io.h	ACPI: OSL: Make a W=1 kernel-doc warning go away	2019-06-04 17:21:11 +02:00
acpi_lpat.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174	2019-05-30 11:26:41 -07:00
acpi_numa.h
acpiosxf.h	ACPICA: Fully deploy ACPI_PRINTF_LIKE macro	2019-08-21 00:00:37 +02:00
acpixf.h	ACPICA: Allow acpi_any_gpe_status_set() to skip one GPE	2020-04-17 10:50:09 +02:00
acrestyp.h
actbl.h	ACPICA: Rename nameseg length macro/define for clarity	2019-04-09 11:24:48 +02:00
actbl1.h	acpi/hmat: Update acpi_hmat_type enum with ACPI_HMAT_TYPE_PROXIMITY	2019-04-25 21:24:38 +02:00
actbl2.h
actbl3.h
actypes.h	ACPICA: actypes.h: Expand the ACPI_ACCESS_ definitions	2022-01-27 09:19:45 +01:00
acuuid.h
apei.h
battery.h
button.h
cppc_acpi.h	ACPI: CPPC: Do not prevent CPPC from working in the future	2022-08-25 11:18:15 +02:00
ghes.h
hed.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428	2019-06-05 17:37:16 +02:00
nfit.h
pcc.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441	2019-06-05 17:37:17 +02:00
pdc_intel.h
processor.h	x86: ACPI: fix CPU hotplug deadlock	2020-04-23 10:36:38 +02:00
reboot.h
video.h