linux-kernel - [PATCH 13/33] hexagon: use the generic dma

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Message-Id: <20180110080027.13879-14-hch@lst.de>
Date:   Wed, 10 Jan 2018 09:00:07 +0100
From:   Christoph Hellwig <hch@....de>
To:     iommu@...ts.linux-foundation.org
Cc:     Konrad Rzeszutek Wilk <konrad@...nok.org>,
        linux-alpha@...r.kernel.org, linux-snps-arc@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-c6x-dev@...ux-c6x.org,
        linux-cris-kernel@...s.com, linux-hexagon@...r.kernel.org,
        linux-ia64@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
        linux-metag@...r.kernel.org, Michal Simek <monstr@...str.eu>,
        linux-mips@...ux-mips.org, linux-parisc@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, patches@...ups.riscv.org,
        linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
        sparclinux@...r.kernel.org, Guan Xuetao <gxt@...c.pku.edu.cn>,
        x86@...nel.org, linux-arch@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 13/33] hexagon: use the generic dma_capable helper

Signed-off-by: Christoph Hellwig <hch@....de>
Acked-by: Richard Kuo <rkuo@...eaurora.org>
---
 arch/hexagon/include/asm/dma-mapping.h | 7 -------
 arch/hexagon/kernel/dma.c              | 1 +
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 5208de242e79..263f6acbfb0f 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -37,11 +37,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return dma_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index 546792d176a4..ad8347c29dcf 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -19,6 +19,7 @@
  */
 
 #include <linux/dma-mapping.h>
+#include <linux/dma-direct.h>
 #include <linux/bootmem.h>
 #include <linux/genalloc.h>
 #include <asm/dma-mapping.h>
-- 
2.14.2