linux-kernel - [PATCH] iommu/mediatek: include linux/dma-mapping.h

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Message-Id: <20170511113619.2596882-1-arnd@arndb.de>
Date:   Thu, 11 May 2017 13:35:51 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Joerg Roedel <joro@...tes.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Honghui Zhang <honghui.zhang@...iatek.com>,
        iommu@...ts.linux-foundation.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] iommu/mediatek: include linux/dma-mapping.h

The mediatek iommu driver relied on an implicit include of dma-mapping.h,
but for some reason that is no longer there in 4.12-rc1:

drivers/iommu/mtk_iommu_v1.c: In function 'mtk_iommu_domain_finalise':
drivers/iommu/mtk_iommu_v1.c:233:16: error: implicit declaration of function 'dma_zalloc_coherent'; did you mean 'debug_dma_alloc_coherent'? [-Werror=implicit-function-declaration]
drivers/iommu/mtk_iommu_v1.c: In function 'mtk_iommu_domain_free':
drivers/iommu/mtk_iommu_v1.c:265:2: error: implicit declaration of function 'dma_free_coherent'; did you mean 'debug_dma_free_coherent'? [-Werror=implicit-function-declaration]

This adds an explicit #include to make it build again.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/iommu/mtk_iommu_v1.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index a27ef570c328..bc1efbfb9ddf 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -18,6 +18,7 @@
 #include <linux/clk.h>
 #include <linux/component.h>
 #include <linux/device.h>
+#include <linux/dma-mapping.h>
 #include <linux/dma-iommu.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
-- 
2.9.0