linux-kernel - [PATCH 0/2] __cpuhp_setup_state() returns positive value for dynamic state

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Message-Id: <1481814058-4799-1-git-send-email-boris.ostrovsky@oracle.com>
Date:   Thu, 15 Dec 2016 10:00:56 -0500
From:   Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:     tglx@...utronix.de, bigeasy@...utronix.de, rjw@...ysocki.net,
        viresh.kumar@...aro.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        xen-devel@...ts.xenproject.org,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>
Subject: [PATCH 0/2] __cpuhp_setup_state() returns positive value for dynamic state

The first patch corrects description of __cpuhp_setup_state()'s possible
return values and the second fixes a bug (which causes Xen guests to crash).

As a follow-up question for the first patch --- should we allow calling
__cpuhp_setup_state() with state in [CPUHP_AP_ONLINE_DYN + 1 .. CPUHP_AP_ONLINE_DYN_END]
range?

Boris Ostrovsky (2):
  cpu/hotplug: Clarify description of __cpuhp_setup_state() return
    value
  cpufreq: Remove cpu hotplug callbacks only if they were initialized

 drivers/cpufreq/acpi-cpufreq.c |    2 +-
 kernel/cpu.c                   |    6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)