[Xen-devel] [stable] config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected

[Ben Hutchings <ben@xxxxxxxxxxxxxxx>]

This fix appears to be needed in all stable branches:

commit a6dfa128ce5c414ab46b1d690f7a1b8decb8526d
Author: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Date:   Fri Apr 17 15:04:48 2015 -0400

    config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected

For 3.2 and 3.4, the context needs to be fixed up.

For 2.6.32, a similar change to config conditions should be made at line
93 of arch/x86/include/asm/pci.h.

Ben.

-- 
Ben Hutchings
Design a system any fool can use, and only a fool will want to use it.

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