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libata: make SFF support optional

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Now that SFF support is completely separated out from the core layer,
it can be made optional.  Add CONFIG_ATA_SFF and let SFF drivers
depend on it.  If CONFIG_ATA_SFF isn't set, all codes in libata-sff.c
and data structures for SFF support are disabled.  This saves good
number of bytes for small systems.

Signed-off-by: Tejun Heo <htejun@gmail.com>
This commit is contained in:
Tejun Heo
2008-04-07 22:47:21 +09:00
committed by Jeff Garzik
parent 350756f6da
commit 127102aea2
6 changed files with 46 additions and 19 deletions
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drivers/ata/Kconfig
+27 -17
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@@ -49,6 +49,32 @@ config SATA_AHCI
If unsure, say N.
config SATA_SIL24
tristate "Silicon Image 3124/3132 SATA support"
depends on PCI
help
This option enables support for Silicon Image 3124/3132 Serial ATA.
If unsure, say N.
config SATA_FSL
tristate "Freescale 3.0Gbps SATA support"
depends on FSL_SOC
help
This option enables support for Freescale 3.0Gbps SATA controller.
It can be found on MPC837x and MPC8315.
If unsure, say N.
config ATA_SFF
bool "ATA SFF support"
default y
help
This option adds support for ATA controllers with SFF
compliant or similar programming interface.
if ATA_SFF
config SATA_SVW
tristate "ServerWorks Frodo / Apple K2 SATA support"
depends on PCI
@@ -125,14 +151,6 @@ config SATA_SIL
If unsure, say N.
config SATA_SIL24
tristate "Silicon Image 3124/3132 SATA support"
depends on PCI
help
This option enables support for Silicon Image 3124/3132 Serial ATA.
If unsure, say N.
config SATA_SIS
tristate "SiS 964/965/966/180 SATA support"
depends on PCI
@@ -183,15 +201,6 @@ config PATA_ACPI
firmware in the BIOS. This driver can sometimes handle
otherwise unsupported hardware.
config SATA_FSL
tristate "Freescale 3.0Gbps SATA support"
depends on FSL_SOC
help
This option enables support for Freescale 3.0Gbps SATA controller.
It can be found on MPC837x and MPC8315.
If unsure, say N.
config PATA_ALI
tristate "ALi PATA support (Experimental)"
depends on PCI && EXPERIMENTAL
@@ -679,4 +688,5 @@ config PATA_BF54X
If unsure, say N.
endif # ATA_SFF
endif # ATA