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authorCornelia Huck <cornelia.huck@de.ibm.com>2007-07-09 11:59:59 -0700
committerJames Bottomley <jejb@mulgrave.localdomain>2007-07-14 19:28:10 -0500
commit7689e82efdb636e8a076a1293b977bce313110c5 (patch)
tree3d8702ff24a205db7670ad5425e3a35fe45b0f00 /drivers/scsi/Kconfig
parent6d877688ef411313c94aa3c83c7473fbec6db32c (diff)
[SCSI] don't build scsi_dma_{map,unmap} for !HAS_DMA
With dma-mapping-prevent-dma-dependent-code-from-linking-on.patch scsi fails to build on !HAS_DMA architectures: drivers/built-in.o(.text+0x20af6): In function `scsi_dma_map': : undefined reference to `dma_map_sg' drivers/built-in.o(.text+0x20b5c): In function `scsi_dma_unmap': : undefined reference to `dma_unmap_sg' I split those functions out into a new file. Builds on s390 and i386. Move scsi_dma_{map,unmap} into scsi_lib_dma.c which is only build if HAS_DMA is set. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: James Bottomley <James.Bottomley@SteelEye.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/Kconfig')
-rw-r--r--drivers/scsi/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 874cfee29358..6ac3873e4d73 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -10,6 +10,7 @@ config RAID_ATTRS
config SCSI
tristate "SCSI device support"
depends on BLOCK
+ select SCSI_DMA if HAS_DMA
---help---
If you want to use a SCSI hard disk, SCSI tape drive, SCSI CD-ROM or
any other SCSI device under Linux, say Y and make sure that you know
@@ -29,6 +30,10 @@ config SCSI
However, do not compile this as a module if your root file system
(the one containing the directory /) is located on a SCSI device.
+config SCSI_DMA
+ bool
+ default n
+
config SCSI_TGT
tristate "SCSI target support"
depends on SCSI && EXPERIMENTAL