On 14/09/18 11:08, Christoph Hellwig wrote:
Aby chance to get a review for this?
So without this, the select does nothing,
CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU_ALL is never defined, and BMIPS gets
the static inline stub and never flushes the RAC when it should? I don't
know enough MIPS to consider even compile-testing to check it, but that
sounds like a legitimate fix to me.
Robin.
On Tue, Sep 11, 2018 at 11:00:49AM +0200, Christoph Hellwig wrote:
The patch adding the infrastructure failed to actually add the symbol
declaration, oops..
Fixes: faef87723a ("dma-noncoherent: add a arch_sync_dma_for_cpu_all hook")
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
kernel/dma/Kconfig | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig
index 9bd54304446f..1b1d63b3634b 100644
--- a/kernel/dma/Kconfig
+++ b/kernel/dma/Kconfig
@@ -23,6 +23,9 @@ config ARCH_HAS_SYNC_DMA_FOR_CPU
bool
select NEED_DMA_MAP_STATE
+config ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
+ bool
+
config DMA_DIRECT_OPS
bool
depends on HAS_DMA
--
2.18.0
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