diff mbox

[07/18] ACPI: Adjust system_state check

Message ID 20170514183613.002084749@linutronix.de (mailing list archive)
State New, archived
Headers show

Commit Message

Thomas Gleixner May 14, 2017, 6:27 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 wether a pci root is hotplugged depend on SYSTEM_RUNNING
instead of !SYSTEM_BOOTING.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
---
 drivers/acpi/pci_root.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Mark Rutland May 15, 2017, 10:20 a.m. UTC | #1
On Sun, May 14, 2017 at 08:27:23PM +0200, Thomas Gleixner 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 wether a pci root is hotplugged depend on SYSTEM_RUNNING
> instead of !SYSTEM_BOOTING.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: linux-arm-kernel@lists.infradead.org
> ---
>  drivers/acpi/pci_root.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

This looks sane to me, but I assume this was meant to be Cc'd to the
ACPI folk rather than the arm64 folk?

Mark.

> --- 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)
> 
>
Thomas Gleixner May 15, 2017, 10:25 a.m. UTC | #2
On Mon, 15 May 2017, Mark Rutland wrote:

> On Sun, May 14, 2017 at 08:27:23PM +0200, Thomas Gleixner 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 wether a pci root is hotplugged depend on SYSTEM_RUNNING
> > instead of !SYSTEM_BOOTING.
> > 
> > Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> > Cc: Catalin Marinas <catalin.marinas@arm.com>
> > Cc: Will Deacon <will.deacon@arm.com>
> > Cc: Mark Rutland <mark.rutland@arm.com>
> > Cc: linux-arm-kernel@lists.infradead.org
> > ---
> >  drivers/acpi/pci_root.c |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> This looks sane to me, but I assume this was meant to be Cc'd to the
> ACPI folk rather than the arm64 folk?

Indeed.

> Mark.
> 
> > --- 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)
> > 
> > 
>
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)