On 2/19/2018 5:40 PM, gregkh@linuxfoundation.org wrote:
This is a note to let you know that I've just added the patch titled
x86: PM: Make APM idle driver initialize polling stateto the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
Mainline commit
commit d7212cfb05ba802bea4dd6c90d61cfe6366ea224 tree 92b37c0446514a1304d5222337f93189c1c67650 parent b6d8ef86cb7b8b6920b6815ebf1352757d3adb87
PM: cpuidle: Fix cpuidle_poll_state_init() prototype
is necessary on top of this to fix a build issue on 32-bit x86 when CONFIG_CPU_IDLE is not set.
The filename of the patch is: x86-pm-make-apm-idle-driver-initialize-polling-state.patch and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From f859422075165e32c00c8d75d63f300015cc07ae Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" rafael.j.wysocki@intel.com Date: Tue, 6 Feb 2018 18:55:12 +0100 Subject: x86: PM: Make APM idle driver initialize polling state MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
From: Rafael J. Wysocki rafael.j.wysocki@intel.com
commit f859422075165e32c00c8d75d63f300015cc07ae upstream.
Update the APM driver overlooked by commit 1b39e3f813b4 (cpuidle: Make drivers initialize polling state) to initialize the polling state like the other cpuidle drivers modified by that commit to prevent cpuidle from crashing.
Fixes: 1b39e3f813b4 (cpuidle: Make drivers initialize polling state) Reported-by: Ville Syrjälä ville.syrjala@linux.intel.com Tested-by: Ville Syrjälä ville.syrjala@linux.intel.com Cc: 4.14+ stable@vger.kernel.org # 4.14+ Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
arch/x86/kernel/apm_32.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -2389,6 +2389,7 @@ static int __init apm_init(void) if (HZ != 100) idle_period = (idle_period * HZ) / 100; if (idle_threshold < 100) {
cpuidle_poll_state_init(&apm_idle_driver);Patches currently in stable-queue which might be from rafael.j.wysocki@intel.com are
queue-4.14/x86-pm-make-apm-idle-driver-initialize-polling-state.patch queue-4.14/cpufreq-powernv-dont-assume-distinct-pstate-values-for-nominal-and-pmin.patch