We only need this code to support scsi, ide, cciss and virtio. And at
least for virtio it's a deprecated feature to start with.
This should shrink the kernel size for embedded device that only use,
say eMMC a bit.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
block/Kconfig | 5 +++++
block/Makefile | 5 +++--
drivers/block/Kconfig | 4 ++++
drivers/block/paride/Kconfig | 1 +
drivers/ide/Kconfig | 1 +
drivers/scsi/Kconfig | 1 +
drivers/target/Kconfig | 1 +
fs/nfsd/Kconfig | 1 +
8 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/block/Kconfig b/block/Kconfig
index 8bf114a..9791bb8 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -49,9 +49,13 @@ config LBDAF
If unsure, say Y.
+config BLK_SCSI_REQUEST
+ bool
+
config BLK_DEV_BSG
bool "Block layer SG support v4"
default y
+ select BLK_SCSI_REQUEST
help
Saying Y here will enable generic SG (SCSI generic) v4 support
for any block device.
@@ -71,6 +75,7 @@ config BLK_DEV_BSGLIB
bool "Block layer SG support v4 helper lib"
default n
select BLK_DEV_BSG
+ select BLK_SCSI_REQUEST
help
Subsystems will normally enable this if needed. Users will not
normally need to manually enable this.
diff --git a/block/Makefile b/block/Makefile
index 6cabe6b..6d7de29 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -7,10 +7,11 @@ obj-$(CONFIG_BLOCK) := bio.o elevator.o blk-core.o blk-tag.o blk-sysfs.o \
blk-exec.o blk-merge.o blk-softirq.o blk-timeout.o \
blk-lib.o blk-mq.o blk-mq-tag.o blk-stat.o \
blk-mq-sysfs.o blk-mq-cpumap.o blk-mq-sched.o ioctl.o \
- genhd.o scsi_ioctl.o partition-generic.o ioprio.o \
+ genhd.o partition-generic.o ioprio.o \
badblocks.o partitions/
-obj-$(CONFIG_BOUNCE) += bounce.o
+obj-$(CONFIG_BOUNCE) += bounce.o
+obj-$(CONFIG_BLK_SCSI_REQUEST) += scsi_ioctl.o
obj-$(CONFIG_BLK_DEV_BSG) += bsg.o
obj-$(CONFIG_BLK_DEV_BSGLIB) += bsg-lib.o
obj-$(CONFIG_BLK_CGROUP) += blk-cgroup.o
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 223ff2f..7a4c787 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -69,6 +69,7 @@ config AMIGA_Z2RAM
config GDROM
tristate "SEGA Dreamcast GD-ROM drive"
depends on SH_DREAMCAST
+ select BLK_SCSI_REQUEST # only for the generic cdrom code
help
A standard SEGA Dreamcast comes with a modified CD ROM drive called a
"GD-ROM" by SEGA to signify it is capable of reading special disks
@@ -114,6 +115,7 @@ config BLK_CPQ_CISS_DA
tristate "Compaq Smart Array 5xxx support"
depends on PCI
select CHECK_SIGNATURE
+ select BLK_SCSI_REQUEST
help
This is the driver for Compaq Smart Array 5xxx controllers.
Everyone using these boards should say Y here.
@@ -386,6 +388,7 @@ config BLK_DEV_RAM_DAX
config CDROM_PKTCDVD
tristate "Packet writing on CD/DVD media (DEPRECATED)"
depends on !UML
+ select BLK_SCSI_REQUEST
help
Note: This driver is deprecated and will be removed from the
kernel in the near future!
@@ -497,6 +500,7 @@ config XEN_BLKDEV_BACKEND
config VIRTIO_BLK
tristate "Virtio block driver"
depends on VIRTIO
+ select BLK_SCSI_REQUEST
---help---
This is the virtual block driver for virtio. It can be used with
lguest or QEMU based VMMs (like KVM or Xen). Say Y or M.
diff --git a/drivers/block/paride/Kconfig b/drivers/block/paride/Kconfig
index efefb5a..3a15247 100644
--- a/drivers/block/paride/Kconfig
+++ b/drivers/block/paride/Kconfig
@@ -25,6 +25,7 @@ config PARIDE_PD
config PARIDE_PCD
tristate "Parallel port ATAPI CD-ROMs"
depends on PARIDE
+ select BLK_SCSI_REQUEST # only for the generic cdrom code
---help---
This option enables the high-level driver for ATAPI CD-ROM devices
connected through a parallel port. If you chose to build PARIDE
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 39ea67f..c99a25c 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -10,6 +10,7 @@ menuconfig IDE
tristate "ATA/ATAPI/MFM/RLL support (DEPRECATED)"
depends on HAVE_IDE
depends on BLOCK
+ select BLK_SCSI_REQUEST
---help---
If you say Y here, your kernel will be able to manage ATA/(E)IDE and
ATAPI units. The most common cases are IDE hard drives and ATAPI
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index a4f6b0d..d4023bf 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -18,6 +18,7 @@ config SCSI
depends on BLOCK
select SCSI_DMA if HAS_DMA
select SG_POOL
+ select BLK_SCSI_REQUEST
---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
diff --git a/drivers/target/Kconfig b/drivers/target/Kconfig
index 2573612..e2bc999 100644
--- a/drivers/target/Kconfig
+++ b/drivers/target/Kconfig
@@ -4,6 +4,7 @@ menuconfig TARGET_CORE
depends on SCSI && BLOCK
select CONFIGFS_FS
select CRC_T10DIF
+ select BLK_SCSI_REQUEST # only for scsi_command_size_tbl..
default n
help
Say Y or M here to enable the TCM Storage Engine and ConfigFS enabled
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index 47febcf..20b1c17 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -104,6 +104,7 @@ config NFSD_SCSILAYOUT
depends on NFSD_V4 && BLOCK
select NFSD_PNFS
select EXPORTFS_BLOCK_OPS
+ select BLK_SCSI_REQUEST
help
This option enables support for the exporting pNFS SCSI layouts
in the kernel's NFS server. The pNFS SCSI layout enables NFS
--
2.1.4
--
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