From c6778548264d1979275adb3fcbdbb9686d6769a9 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Tue, 21 Nov 2006 22:57:23 +0100
Subject: [PATCH] --- yaml --- r: 41061 b: refs/heads/master c:
 105ef9a0af1469a9dd906839dd4628aa9c013f58 h: refs/heads/master i:   41059:
 8fe114ab69d2a508d439e4d13afd4816bab68a1a v: v3

---
 [refs]                              | 2 +-
 trunk/arch/arm/mm/consistent.c      | 3 +++
 trunk/include/asm-arm/dma-mapping.h | 4 ++++
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index a9d66854e995..a7f536d37ded 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8de35efb6afa75f25415d54e21221eea759db261
+refs/heads/master: 105ef9a0af1469a9dd906839dd4628aa9c013f58
diff --git a/trunk/arch/arm/mm/consistent.c b/trunk/arch/arm/mm/consistent.c
index 50e6b6bfb2e2..b797217e82be 100644
--- a/trunk/arch/arm/mm/consistent.c
+++ b/trunk/arch/arm/mm/consistent.c
@@ -476,6 +476,9 @@ core_initcall(consistent_init);
 
 /*
  * Make an area consistent for devices.
+ * Note: Drivers should NOT use this function directly, as it will break
+ * platforms with CONFIG_DMABOUNCE.
+ * Use the driver DMA support - see dma-mapping.h (dma_sync_*)
  */
 void consistent_sync(void *vaddr, size_t size, int direction)
 {
diff --git a/trunk/include/asm-arm/dma-mapping.h b/trunk/include/asm-arm/dma-mapping.h
index 55eb4dc3253d..666617711c81 100644
--- a/trunk/include/asm-arm/dma-mapping.h
+++ b/trunk/include/asm-arm/dma-mapping.h
@@ -12,6 +12,10 @@
  * uncached, unwrite-buffered mapped memory space for use with DMA
  * devices.  This is the "generic" version.  The PCI specific version
  * is in pci.h
+ *
+ * Note: Drivers should NOT use this function directly, as it will break
+ * platforms with CONFIG_DMABOUNCE.
+ * Use the driver DMA support - see dma-mapping.h (dma_sync_*)
  */
 extern void consistent_sync(void *kaddr, size_t size, int rw);