Re: Regression (ARM) arch/arm/mm/init.c doesn't build without CONFIG_ARM_PATCH_PHYS_VIRT.

From: Santosh Shilimkar
Date: Mon Jan 06 2014 - 14:35:57 EST


On Monday 06 January 2014 02:28 PM, Krzysztof HaÅasa wrote:
> Russell, Santosh,
>
> the unneeded commit causing regression is still in place. Please try to
> compile an ARM kernel without CONFIG_ARM_PATCH_PHYS_VIRT and with
> CONFIG_ZONE_DMA and see for yourself, if you don't believe me.
>
> Please be aware that this commit fixes nothing, its only function is
> causing the regression - so we don't lose anything by reverting it.
>
I am afraid you didn't understood what the fix is if you say above.
arm_dma_limit is broken without this fix for LPAE machines with
memory starting 4 GB physical boundary.

Regards,
Santosh
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