39 lines
1.6 KiB
Diff
39 lines
1.6 KiB
Diff
From: Thomas Gleixner <tglx@linutronix.de>
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Date: Tue, 16 May 2017 20:42:38 +0200
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Subject: [PATCH 07/17] ACPI: Adjust system_state check
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.11/older/patches-4.11.8-rt5.tar.xz
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To enable smp_processor_id() and might_sleep() debug checks earlier, it's
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required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING.
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Make the decision whether a pci root is hotplugged depend on SYSTEM_RUNNING
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instead of !SYSTEM_BOOTING. It makes no sense to cover states greater than
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SYSTEM_RUNNING as there are not hotplug events on reboot and poweroff.
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Tested-by: Mark Rutland <mark.rutland@arm.com>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
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Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Cc: Len Brown <lenb@kernel.org>
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Cc: Linus Torvalds <torvalds@linux-foundation.org>
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Cc: Peter Zijlstra <peterz@infradead.org>
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Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
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Link: http://lkml.kernel.org/r/20170516184735.446455652@linutronix.de
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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---
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drivers/acpi/pci_root.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/acpi/pci_root.c
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+++ b/drivers/acpi/pci_root.c
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@@ -523,7 +523,7 @@ static int acpi_pci_root_add(struct acpi
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struct acpi_pci_root *root;
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acpi_handle handle = device->handle;
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int no_aspm = 0;
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- bool hotadd = system_state != SYSTEM_BOOTING;
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+ bool hotadd = system_state == SYSTEM_RUNNING;
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root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
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if (!root)
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