diff mbox

[V2,07/17] ACPI: Adjust system_state check

Message ID 20170516184735.446455652@linutronix.de (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Thomas Gleixner May 16, 2017, 6:42 p.m. UTC
To enable smp_processor_id() and might_sleep() debug checks earlier, it's
required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING.

Make the decision whether a pci root is hotplugged depend on SYSTEM_RUNNING
instead of !SYSTEM_BOOTING. It makes no sense to cover states greater than
SYSTEM_RUNNING as there are not hotplug events on reboot and poweroff.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <lenb@kernel.org>
Cc: linux-acpi@vger.kernel.org
---
 drivers/acpi/pci_root.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)



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Comments

Steven Rostedt May 16, 2017, 7:07 p.m. UTC | #1
On Tue, 16 May 2017 20:42:38 +0200
Thomas Gleixner <tglx@linutronix.de> wrote:

> To enable smp_processor_id() and might_sleep() debug checks earlier, it's
> required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING.
> 
> Make the decision whether a pci root is hotplugged depend on SYSTEM_RUNNING
> instead of !SYSTEM_BOOTING. It makes no sense to cover states greater than
> SYSTEM_RUNNING as there are not hotplug events on reboot and poweroff.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

-- Steve

> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Len Brown <lenb@kernel.org>
> Cc: linux-acpi@vger.kernel.org
> ---
>  drivers/acpi/pci_root.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- a/drivers/acpi/pci_root.c
> +++ b/drivers/acpi/pci_root.c
> @@ -523,7 +523,7 @@ static int acpi_pci_root_add(struct acpi
>  	struct acpi_pci_root *root;
>  	acpi_handle handle = device->handle;
>  	int no_aspm = 0;
> -	bool hotadd = system_state != SYSTEM_BOOTING;
> +	bool hotadd = system_state == SYSTEM_RUNNING;
>  
>  	root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
>  	if (!root)
> 

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diff mbox

Patch

--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -523,7 +523,7 @@  static int acpi_pci_root_add(struct acpi
 	struct acpi_pci_root *root;
 	acpi_handle handle = device->handle;
 	int no_aspm = 0;
-	bool hotadd = system_state != SYSTEM_BOOTING;
+	bool hotadd = system_state == SYSTEM_RUNNING;
 
 	root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
 	if (!root)