Re: [PATCH kernel] powerpc/powernv: Fix it_ops::get() callback to return in cpu endian
From: Gavin Shan <hidden>
Date: 2017-02-21 22:27:58
On Tue, Feb 21, 2017 at 01:38:54PM +1100, Alexey Kardashevskiy wrote:
The iommu_table_ops callbacks are declared CPU endian as they take and return "unsigned long"; underlying hardware tables are big-endian. However get() was missing be64_to_cpu(), this adds the missing conversion. The only caller of this is crash dump at arch/powerpc/kernel/iommu.c, iommu_table_clear() which only compares TCE to zero so this change should not cause behavioral change. Signed-off-by: Alexey Kardashevskiy <redacted>
Acked-by: Gavin Shan <redacted>