linux-kernel - linux-next: build warning after merge of the dma-mapping tree

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Date:   Tue, 2 Oct 2018 08:35:17 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Christoph Hellwig <hch@....de>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: linux-next: build warning after merge of the dma-mapping tree

Hi Christoph,

After merging the dma-mapping tree, today's linux-next build (powerpc
ppc64_defconfig) produced this warning:

drivers/base/platform.c:1182:12: warning: 'dma_default_get_required_mask' defined but not used [-Wunused-function]
 static u64 dma_default_get_required_mask(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Introduced by commit

  dma_default_get_required_mask ("dma-mapping: make the get_required_mask method available unconditionally")

It is only used in the case ARCH_HAS_DMA_GET_REQUIRED_MASK is not defined.

-- 
Cheers,
Stephen Rothwell

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