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From: Claire Chang <tientzu@chromium.org>
To: hch@lst.de, m.szyprowski@samsung.com, robin.murphy@arm.com,
	konrad.wilk@oracle.com
Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
	linux@roeck-us.net, Claire Chang <tientzu@chromium.org>
Subject: [PATCH] swiotlb: use depends on for DMA_RESTRICTED_POOL
Date: Fri, 27 Aug 2021 11:48:02 +0800	[thread overview]
Message-ID: <20210827034802.1065294-1-tientzu@chromium.org> (raw)

Use depends on instead of select for DMA_RESTRICTED_POOL; otherwise it
will make SWIOTLB user configurable and cause compile errors for some
arch (e.g. mips).

Fixes: 0b84e4f8b793 ("swiotlb: Add restricted DMA pool initialization")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Claire Chang <tientzu@chromium.org>
---
 kernel/dma/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig
index fd4db714d86b..1b02179758cb 100644
--- a/kernel/dma/Kconfig
+++ b/kernel/dma/Kconfig
@@ -82,8 +82,7 @@ config SWIOTLB
 
 config DMA_RESTRICTED_POOL
 	bool "DMA Restricted Pool"
-	depends on OF && OF_RESERVED_MEM
-	select SWIOTLB
+	depends on OF && OF_RESERVED_MEM && SWIOTLB
 	help
 	  This enables support for restricted DMA pools which provide a level of
 	  DMA memory protection on systems with limited hardware protection
-- 
2.33.0.259.gc128427fd7-goog


             reply	other threads:[~2021-08-27  3:48 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-27  3:48 Claire Chang [this message]
2021-08-31 15:17 ` Will Deacon
2021-08-31 18:49   ` Konrad Rzeszutek Wilk

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