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[2/4] UBUNTU: SAUCE: azure: dma-mapping: Add wrapper function to set dma_coherent

Message ID 20220323161631.20421-3-tim.gardner@canonical.com
State New
Headers show
Series Azure: Improve arm64 network throughput | expand

Commit Message

Tim Gardner March 23, 2022, 4:16 p.m. UTC 
From: Michael Kelley <mikelley@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@microsoft.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
---
 include/linux/dma-map-ops.h | 9 +++++++++
 1 file changed, 9 insertions(+)
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Patch

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,