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Subject[PATCH 2.6.17-rc5-mm2 17/18] sbp2: provide helptext for CONFIG_IEEE1394_SBP2_PHYS_DMA and mark it experimental
It appears I will not get it fixed overnight.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

Index: linux-2.6.17-rc5-mm2/drivers/ieee1394/Kconfig
===================================================================
--- linux-2.6.17-rc5-mm2.orig/drivers/ieee1394/Kconfig 2006-06-01 20:55:03.000000000 +0200
+++ linux-2.6.17-rc5-mm2/drivers/ieee1394/Kconfig 2006-06-01 20:55:48.000000000 +0200
@@ -128,8 +128,17 @@ config IEEE1394_SBP2
1394 bus. SBP-2 devices include harddrives and DVD devices.

config IEEE1394_SBP2_PHYS_DMA
- bool "Enable Phys DMA support for SBP2 (Debug)"
- depends on IEEE1394 && IEEE1394_SBP2
+ bool "Enable replacement for physical DMA in SBP2"
+ depends on IEEE1394 && IEEE1394_SBP2 && EXPERIMENTAL
+ help
+ This builds sbp2 for use with non-OHCI host adapters which do not
+ support physical DMA or for when ohci1394 is run with phys_dma=0.
+ Physical DMA is data movement without assistence of the drivers'
+ interrupt handlers. This option includes the interrupt handlers
+ that are required in absence of this hardware feature.
+
+ This option is buggy and currently broken on some architectures.
+ If unsure, say N.

config IEEE1394_ETH1394
tristate "Ethernet over 1394"

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