[SCSI] libsas: make ATA functions selectable by a config option

Not everyone wants libsas automatically to pull in libata.  This patch
makes the behaviour configurable, so you can build libsas with or
without ATA support.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/scsi/libsas/Kconfig b/drivers/scsi/libsas/Kconfig
index aafdc92f8312..3a3c1ac9c6cd 100644
--- a/drivers/scsi/libsas/Kconfig
+++ b/drivers/scsi/libsas/Kconfig
@@ -30,6 +30,13 @@ config SCSI_SAS_LIBSAS
           This provides transport specific helpers for SAS drivers which
           use the domain device construct (like the aic94xxx).
 
+config SCSI_SAS_ATA
+        bool "ATA support for libsas (requires libata)"
+        depends on SCSI_SAS_LIBSAS && ATA
+        help
+                Builds in ATA support into libsas.  Will necessitate
+                the loading of libata along with libsas.
+
 config SCSI_SAS_LIBSAS_DEBUG
         bool "Compile the SAS Domain Transport Attributes in debug mode"
         default y