[PATCH 7/13] ATA ACPI: more Makefile/Kconfig

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From: Randy Dunlap <[email protected]>

Simplify Makefile.
Add Kconfig help.

Signed-off-by: Randy Dunlap <[email protected]>
---
 drivers/scsi/Kconfig  |   10 +++++++++-
 drivers/scsi/Makefile |    6 ++----
 2 files changed, 11 insertions(+), 5 deletions(-)

--- linux-2616-rc4-ata.orig/drivers/scsi/Makefile
+++ linux-2616-rc4-ata/drivers/scsi/Makefile
@@ -163,10 +163,8 @@ ncr53c8xx-flags-$(CONFIG_SCSI_ZALON) \
 CFLAGS_ncr53c8xx.o	:= $(ncr53c8xx-flags-y) $(ncr53c8xx-flags-m)
 zalon7xx-objs	:= zalon.o ncr53c8xx.o
 NCR_Q720_mod-objs	:= NCR_Q720.o ncr53c8xx.o
-libata-objs	:= libata-core.o libata-scsi.o
-ifeq ($(CONFIG_SCSI_SATA_ACPI),y)
-  libata-objs	+= libata-acpi.o
-endif
+libata-y	:= libata-core.o libata-scsi.o
+libata-$(CONFIG_SCSI_SATA_ACPI) += libata-acpi.o
 oktagon_esp_mod-objs	:= oktagon_esp.o oktagon_io.o
 
 # Files generated that shall be removed upon make clean
--- linux-2616-rc4-ata.orig/drivers/scsi/Kconfig
+++ linux-2616-rc4-ata/drivers/scsi/Kconfig
@@ -601,8 +601,16 @@ config SCSI_SATA_INTEL_COMBINED
 
 config SCSI_SATA_ACPI
 	bool
-	depends on SCSI_SATA && ACPI
+	depends on SCSI_SATA && ACPI && PCI
 	default y
+	help
+	  This option adds support for SATA-related ACPI objects.
+	  These ACPI objects add the ability to retrieve taskfiles
+	  from the ACPI BIOS and write them to the disk controller.
+	  These objects may be related to performance, security,
+	  power management, or other areas.
+	  You can disable this at kernel boot time by using the
+	  option 'libata.noacpi'.
 
 config SCSI_BUSLOGIC
 	tristate "BusLogic SCSI support"
-
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