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Subject[PATCH] swiotlb: use depends on for DMA_RESTRICTED_POOL
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 <>
Signed-off-by: Claire Chang <>
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

bool "DMA Restricted Pool"
- depends on OF && OF_RESERVED_MEM
- select SWIOTLB
+ depends on OF && OF_RESERVED_MEM && SWIOTLB
This enables support for restricted DMA pools which provide a level of
DMA memory protection on systems with limited hardware protection
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