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ARM: mvebu: convert secondary CPU clock sync to hotplug state

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The current call site in boot_secondary is causing sleep in invalid context
warnings, as this part of the code is running with interrrupts disabled and
some of the calls into the clock framework might sleep on a mutex.

Convert the secondary CPU clock sync to a hotplug state, which allows to
call it from a sleepable context.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
This commit is contained in:
Lucas Stach 2018-06-18 17:32:30 +02:00 • committed by Gregory CLEMENT
parent d0d378ff45
commit 77bc8c28dd
2 changed files with 24 additions and 26 deletions
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1
include/linux/cpuhotplug.h
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@ -143,6 +143,7 @@ enum cpuhp_state {
CPUHP_AP_SMPBOOT_THREADS,
CPUHP_AP_X86_VDSO_VMA_ONLINE,
CPUHP_AP_IRQ_AFFINITY_ONLINE,
CPUHP_AP_ARM_MVEBU_SYNC_CLOCKS,
CPUHP_AP_PERF_ONLINE,
CPUHP_AP_PERF_X86_ONLINE,
CPUHP_AP_PERF_X86_UNCORE_ONLINE,