On 2015/6/2 11:45, Michael Ellerman wrote:
> On Mon, 2015-01-06 at 08:05:42 UTC, Jiang Liu wrote:
>> Use irq_data access helper to access irq_data->msi_desc, so we could
>> move msi_desc from struct irq_data into struct irq_common_data later.
>>
>> Signed-off-by: Jiang Liu <jiang....@linux.intel.com>
>> ---
>> arch/powerpc/sysdev/xics/ics-opal.c | 2 +-
>> arch/powerpc/sysdev/xics/ics-rtas.c | 2 +-
>>
>> diff --git a/arch/powerpc/sysdev/xics/ics-opal.c
>> b/arch/powerpc/sysdev/xics/ics-opal.c
>> index 3996393c254d..27c936c080a6 100644
>> --- a/arch/powerpc/sysdev/xics/ics-opal.c
>> +++ b/arch/powerpc/sysdev/xics/ics-opal.c
>> @@ -72,7 +72,7 @@ static unsigned int ics_opal_startup(struct irq_data *d)
>> * card, using the MSI mask bits. Firmware doesn't appear to unmask
>> * at that level, so we do it here by hand.
>> */
>> - if (d->msi_desc)
>> + if (irq_data_get_msi_desc(d))
>> pci_msi_unmask_irq(d);
>> #endif
>>
>> diff --git a/arch/powerpc/sysdev/xics/ics-rtas.c
>> b/arch/powerpc/sysdev/xics/ics-rtas.c
>> index e2665a9dfc0f..3854dd41558d 100644
>> --- a/arch/powerpc/sysdev/xics/ics-rtas.c
>> +++ b/arch/powerpc/sysdev/xics/ics-rtas.c
>> @@ -75,7 +75,7 @@ static unsigned int ics_rtas_startup(struct irq_data *d)
>> * card, using the MSI mask bits. Firmware doesn't appear to unmask
>> * at that level, so we do it here by hand.
>> */
>> - if (d->msi_desc)
>> + if (irq_data_get_msi_desc(d))
>> pci_msi_unmask_irq(d);
>> #endif
>> /* unmask it */
>
> These look OK.
>
> Though I would point out we already have 16 irq_foo_get_bar() accessors?!
Hi Michael,
Thanks for review. We are trying to solve some issues introduced
by hierarchy irqdomain/irqchip by splitting irq_data into a common part
(irq_common_data) and per-chip part(irq_data). These accessors are used
to ease the transition and hide implementation details.
Thanks!
Gerry
>
> Acked-by: Michael Ellerman <m...@ellerman.id.au>
>
> cheers
>
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