From 1306ad4e60de57022a90b1904870763a39adcb42 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 9 Oct 2018 16:32:54 +0200
Subject: [PATCH] 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>
---
block/Kconfig | 7 -------
block/Kconfig.iosched | 3 ---
2 files changed, 10 deletions(-)
diff --git a/block/Kconfig b/block/Kconfig
index 85263e7bded6..f7045aa47edb 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -74,7 +74,6 @@ config BLK_DEV_BSG
config BLK_DEV_BSGLIB
bool "Block layer SG support v4 helper lib"
- default n
select BLK_DEV_BSG
select BLK_SCSI_REQUEST
help
@@ -107,7 +106,6 @@ config BLK_DEV_ZONED
config BLK_DEV_THROTTLING
bool "Block layer bio throttling support"
depends on BLK_CGROUP=y
- default n
---help---
Block layer bio throttling support. It can be used to limit
the IO rate to a device. IO rate policies are per cgroup and
@@ -119,7 +117,6 @@ config BLK_DEV_THROTTLING
config BLK_DEV_THROTTLING_LOW
bool "Block throttling .low limit interface support (EXPERIMENTAL)"
depends on BLK_DEV_THROTTLING
- default n
---help---
Add .low limit interface for block throttling. The low limit is a best
effort limit to prioritize cgroups. Depending on the setting, the limit
@@ -130,7 +127,6 @@ config BLK_DEV_THROTTLING_LOW
config BLK_CMDLINE_PARSER
bool "Block device command line partition parser"
- default n
---help---
Enabling this option allows you to specify the partition layout from
the kernel boot args. This is typically of use for embedded devices
@@ -141,7 +137,6 @@ config BLK_CMDLINE_PARSER
config BLK_WBT
bool "Enable support for block device writeback throttling"
- default n
---help---
Enabling this option enables the block layer to throttle buffered
background writeback from the VM, making it more smooth and having
@@ -152,7 +147,6 @@ config BLK_WBT
config BLK_CGROUP_IOLATENCY
bool "Enable support for latency based cgroup IO protection"
depends on BLK_CGROUP=y
- default n
---help---
Enabling this option enables the .latency interface for IO throttling.
The IO controller will attempt to maintain average IO latencies below
@@ -163,7 +157,6 @@ config BLK_CGROUP_IOLATENCY
config BLK_WBT_SQ
bool "Single queue writeback throttling"
- default n
depends on BLK_WBT
---help---
Enable writeback throttling by default on legacy single queue devices
diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched
index a4a8914bf7a4..f95a48b0d7b2 100644
--- a/block/Kconfig.iosched
+++ b/block/Kconfig.iosched
@@ -36,7 +36,6 @@ config IOSCHED_CFQ
config CFQ_GROUP_IOSCHED
bool "CFQ Group Scheduling support"
depends on IOSCHED_CFQ && BLK_CGROUP
- default n
---help---
Enable group IO scheduling in CFQ.
@@ -82,7 +81,6 @@ config MQ_IOSCHED_KYBER
config IOSCHED_BFQ
tristate "BFQ I/O scheduler"
- default n
---help---
BFQ I/O scheduler for BLK-MQ. BFQ distributes the bandwidth of
of the device among all processes according to their weights,
@@ -94,7 +92,6 @@ config IOSCHED_BFQ
config BFQ_GROUP_IOSCHED
bool "BFQ hierarchical scheduling support"
depends on IOSCHED_BFQ && BLK_CGROUP
- default n
---help---
Enable hierarchical scheduling in BFQ, using the blkio