openwrt/target/linux/ixp4xx/patches-2.6.23/400-dmabounce.patch

Index: linux-2.6.23.17/arch/arm/common/dmabounce.c
===================================================================
--- linux-2.6.23.17.orig/arch/arm/common/dmabounce.c
+++ linux-2.6.23.17/arch/arm/common/dmabounce.c
@@ -116,6 +116,10 @@ alloc_safe_buffer(struct dmabounce_devic
 	} else if (size <= device_info->large.size) {
 		pool = &device_info->large;
 	} else {
+#ifdef CONFIG_DMABOUNCE_DEBUG
+		printk(KERN_INFO "A dma bounce buffer outside the pool size was requested. Requested size was 0x%08X\nThe calling code was :\n", size);
+		dump_stack();
+#endif
 		pool = NULL;
 	}
 
Index: linux-2.6.23.17/arch/arm/mach-ixp4xx/Kconfig
===================================================================
--- linux-2.6.23.17.orig/arch/arm/mach-ixp4xx/Kconfig
+++ linux-2.6.23.17/arch/arm/mach-ixp4xx/Kconfig
@@ -220,6 +220,11 @@ config DMABOUNCE
 	default y
 	depends on PCI
 
+config DMABOUNCE_DEBUG
+	bool "Enable DMABounce debuging"
+	default n
+	depends on DMABOUNCE
+
 config IXP4XX_INDIRECT_PCI
 	bool "Use indirect PCI memory access"
 	depends on PCI