[PATCH 2/4] UBUNTU: SAUCE: azure: dma-mapping: Add wrapper function to set dma_coherent
Tim Gardner
tim.gardner at canonical.com
Wed Mar 23 16:16:29 UTC 2022
From: Michael Kelley <mikelley at microsoft.com>
BugLink: https://bugs.launchpad.net/bugs/1966098
Add a wrapper function to set dma_coherent, avoiding the need for
complex #ifdef's when setting it in architecture independent code.
Signed-off-by: Michael Kelley <mikelley at microsoft.com>
Signed-off-by: Tim Gardner <tim.gardner at canonical.com>
---
include/linux/dma-map-ops.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/linux/dma-map-ops.h b/include/linux/dma-map-ops.h
index 0d53a96a3d64..bf22f7cc0e07 100644
--- a/include/linux/dma-map-ops.h
+++ b/include/linux/dma-map-ops.h
@@ -251,11 +251,20 @@ static inline bool dev_is_dma_coherent(struct device *dev)
{
return dev->dma_coherent;
}
+static inline void dev_set_dma_coherent(struct device *dev,
+ bool coherent)
+{
+ dev->dma_coherent = coherent;
+}
#else
static inline bool dev_is_dma_coherent(struct device *dev)
{
return true;
}
+static inline void dev_set_dma_coherent(struct device *dev,
+ bool coherent)
+{
+}
#endif /* CONFIG_ARCH_HAS_DMA_COHERENCE_H */
void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
--
2.35.1
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