Andi Kleen wrote:
quoted text
> Index: linux-2.6.24-rc1-hack/arch/x86_64/Kconfig
> ===================================================================
> --- linux-2.6.24-rc1-hack.orig/arch/x86_64/Kconfig
> +++ linux-2.6.24-rc1-hack/arch/x86_64/Kconfig
> @@ -753,7 +753,6 @@ config PCI_DOMAINS
>  config DMAR
>  	bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
>  	depends on PCI_MSI && ACPI && EXPERIMENTAL
> -	default y
>  	help
>  	  DMA remapping (DMAR) devices support enables independent address
>  	  translations for Direct Memory Access (DMA) from devices.

ACK


quoted text
> Index: linux-2.6.24-rc1-hack/drivers/dma/Kconfig
> ===================================================================
> --- linux-2.6.24-rc1-hack.orig/drivers/dma/Kconfig
> +++ linux-2.6.24-rc1-hack/drivers/dma/Kconfig
> @@ -43,7 +43,6 @@ comment "DMA Clients"
>  config NET_DMA
>  	bool "Network: TCP receive copy offload"
>  	depends on DMA_ENGINE && NET
> -	default y
>  	help
>  	  This enables the use of DMA engines in the network stack to
>  	  offload receive copy-to-user operations, freeing CPU cycles.

ACK -- but its arguable that given the current code, its worth setting 
this if DMA_ENGINE is also set.

-
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