[PATCH 2.6.17-rc5-mm2 17/18] sbp2: provide helptext for CONFIG_IEEE1394_SBP2_PHYS_DMA and mark it experimental

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It appears I will not get it fixed overnight.

Signed-off-by: Stefan Richter <[email protected]>

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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