On Thu, 30 Jul, at 03:51:32PM, Jiang Liu wrote:
> Commit d32932d02e18 ("x86/irq: Convert IOAPIC to use hierarchical
> irqdomain interfaces") introduced a regression when converting IOAPIC
> to hierarchy irqdomain, which sets wrong irq flow handler for IOAPIC
> pins on Surface Pro 3 and causes failure when detecting I2C controllers.
> It's caused by using stale attribute value when setting up IOAPIC pins.
> With this patch applied, all IOAPIC IRQ configuration are identical
> to v4.1 on Surface Pro 3.
>
> Fixes: d32932d02e18 ("x86/irq: Convert IOAPIC to use hierarchical irqdomain
> interfaces")
> Reported-by: Matt Fleming <[email protected]>
> Tested-and-reported-by: Chen Yu <[email protected]>
> Signed-off-by: Jiang Liu <[email protected]>
> ---
> Hi Matt,
> Could you please help to test this patch?
> Thanks!
> Gerry
> ---
> arch/x86/kernel/apic/io_apic.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Works for me! What I actually did was apply this fixup commit ontop of
commit d32932d02e18, just to be sure that it fixes the issue. I'm about
to apply it on top of -rc4 just to be sure.
But failing any issues arising,
Tested-by: Matt Fleming <[email protected]>
--
Matt Fleming, Intel Open Source Technology Center
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