I guess nobody don't test m68knommu at all last three month.
Do we still need to maintain this architecture?
==
Currently, m68knommu defconfig can't build. it cause following error.
net/built-in.o: In function `skb_dma_map':
: undefined reference to `dma_mapping_error'
net/built-in.o: In function `skb_dma_unmap':
: undefined reference to `dma_unmap_single'
net/built-in.o: In function `skb_dma_unmap':
: undefined reference to `dma_unmap_page'
net/built-in.o: In function `skb_dma_map':
: undefined reference to `dma_map_single'
net/built-in.o: In function `skb_dma_map':
: undefined reference to `dma_map_page'
net/built-in.o: In function `skb_dma_map':
: undefined reference to `dma_unmap_page'
net/built-in.o: In function `skb_dma_map':
: undefined reference to `dma_unmap_single'
because
- CONFIG_DMA depend on !NO_DMA
- m68knommu always doesn't turn on NO_DMA
- if CONFIG_PCI=n, m68knommu/include/asm/dma-magging.h include
asm-generic/dma-mapping-broken.h
- dma-mapping-broken.h generate link time error.
- m68knommu defconfig doesn't have CONFIG_PCI
- On the other hand, net/core/skb_dma_map.c assume CONFIG_DMA=y mean
dma related function is callable
So, we want to turn on CONFIG_DMA if CONFIG_PCI=y only.
CC: David S. Miller <davem@xxxxxxxxxxxxx>
CC: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
CC: Roman Zippel <zippel@xxxxxxxxxxxxxx>
CC: Greg Ungerer <gerg@xxxxxxxxxxx>
CC: linux-m68k@xxxxxxxxxxxxxxxxxxxx
---
arch/m68knommu/Kconfig | 3 +++
1 file changed, 3 insertions(+)
Index: b/arch/m68knommu/Kconfig
===================================================================
--- a/arch/m68knommu/Kconfig 2008-12-25 08:26:37.000000000 +0900
+++ b/arch/m68knommu/Kconfig 2008-12-28 21:09:58.000000000 +0900
@@ -73,6 +73,9 @@ config GENERIC_CLOCKEVENTS
config NO_IOPORT
def_bool y
+config NO_DMA
+ def_bool !PCI
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"
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