[PATCH 2/4] dma-direct: Turn zone_dma_bits default value into a define
From: Nicolas Saenz Julienne <hidden>
Date: 2020-10-01 16:18:12
Also in:
linux-devicetree, linux-iommu, linux-mm, lkml
Subsystem:
dma mapping helpers, the rest · Maintainers:
Marek Szyprowski, Linus Torvalds
Other code might need to reference it. Signed-off-by: Nicolas Saenz Julienne <redacted> --- include/linux/dma-direct.h | 1 + kernel/dma/direct.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 38ed3b55034d..ef19ff505d09 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h@@ -12,6 +12,7 @@ #include <linux/mem_encrypt.h> #include <linux/swiotlb.h> +#define ZONE_DMA_BITS_DEFAULT 24 extern unsigned int zone_dma_bits; /*
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c
index 121a9c1969dd..4b3cfa02532b 100644
--- a/kernel/dma/direct.c
+++ b/kernel/dma/direct.c@@ -20,7 +20,7 @@ * it for entirely different regions. In that case the arch code needs to * override the variable below for dma-direct to work properly. */ -unsigned int zone_dma_bits __ro_after_init = 24; +unsigned int zone_dma_bits __ro_after_init = ZONE_DMA_BITS_DEFAULT; static inline dma_addr_t phys_to_dma_direct(struct device *dev, phys_addr_t phys)
--
2.28.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel