drivers/block: remove redundant 'default n' from Kconfig-s

'default n' is the default value for any bool or tristate Kconfig
setting so there is no need to write it explicitly.

Also since commit f467c5640c29 ("kconfig: only write '# CONFIG_FOO
is not set' for visible symbols") the Kconfig behavior is the same
regardless of 'default n' being present or not:

    ...
    One side effect of (and the main motivation for) this change is making
    the following two definitions behave exactly the same:

        config FOO
                bool

        config FOO
                bool
                default n

    With this change, neither of these will generate a
    '# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
    That might make it clearer to people that a bare 'default n' is
    redundant.
    ...

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

3 files changed, 0 insertions, 4 deletions

diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index d4913516823f..8aec33277fda 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -461,7 +461,6 @@ config BLK_DEV_RBD
         select LIBCRC32C
         select CRYPTO_AES
         select CRYPTO
-        default n
         help
           Say Y here if you want include the Rados block device, which stripes
           a block device over objects stored in the Ceph distributed object
diff --git a/drivers/block/drbd/Kconfig b/drivers/block/drbd/Kconfig
index 87aab6910d2d..52d885cdccb5 100644
--- a/drivers/block/drbd/Kconfig
+++ b/drivers/block/drbd/Kconfig
@@ -11,7 +11,6 @@ config BLK_DEV_DRBD
         depends on PROC_FS && INET
         select LRU_CACHE
         select LIBCRC32C
-        default n
         help
 
           NOTE: In order to authenticate connections you have to select
diff --git a/drivers/block/zram/Kconfig b/drivers/block/zram/Kconfig
index 635235759a0a..fcd055457364 100644
--- a/drivers/block/zram/Kconfig
+++ b/drivers/block/zram/Kconfig
@@ -3,7 +3,6 @@ config ZRAM
         tristate "Compressed RAM block device support"
         depends on BLOCK && SYSFS && ZSMALLOC && CRYPTO
         select CRYPTO_LZO
-        default n
         help
           Creates virtual block devices called /dev/zramX (X = 0, 1, ...).
           Pages written to these disks are compressed and stored in memory
@@ -18,7 +17,6 @@ config ZRAM
 config ZRAM_WRITEBACK
        bool "Write back incompressible page to backing device"
        depends on ZRAM
-       default n
        help
          With incompressible page, there is no memory saving to keep it
          in memory. Instead, write it out to backing device.