linux-kernel - [PATCH 1/6] interval-tree: Build unconditionally

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Date:   Mon, 15 May 2017 02:07:20 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     mingo@...nel.org, peterz@...radead.org, akpm@...ux-foundation.org
Cc:     jack@...e.cz, kirill.shutemov@...ux.intel.com,
        ldufour@...ux.vnet.ibm.com, mhocko@...e.com,
        mgorman@...hsingularity.net, dave@...olabs.net,
        linux-kernel@...r.kernel.org, Davidlohr Bueso <dbueso@...e.de>
Subject: [PATCH 1/6] interval-tree: Build unconditionally

In preparation for range locking, this patch gets rid of
CONFIG_INTERVAL_TREE option as we will unconditionally
build it.

Signed-off-by: Davidlohr Bueso <dbueso@...e.de>
---
 drivers/gpu/drm/Kconfig      |  2 --
 drivers/gpu/drm/i915/Kconfig |  1 -
 lib/Kconfig                  | 14 --------------
 lib/Kconfig.debug            |  1 -
 lib/Makefile                 |  3 +--
 5 files changed, 1 insertion(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 78d7fc0ebb57..ab6b84f87017 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -163,7 +163,6 @@ config DRM_RADEON
 	select HWMON
 	select BACKLIGHT_CLASS_DEVICE
 	select BACKLIGHT_LCD_SUPPORT
-	select INTERVAL_TREE
 	help
 	  Choose this option if you have an ATI Radeon graphics card.  There
 	  are both PCI and AGP versions.  You don't need to choose this to
@@ -183,7 +182,6 @@ config DRM_AMDGPU
 	select HWMON
 	select BACKLIGHT_CLASS_DEVICE
 	select BACKLIGHT_LCD_SUPPORT
-	select INTERVAL_TREE
 	help
 	  Choose this option if you have a recent AMD Radeon graphics card.
 
diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig
index a5cd5dacf055..a045326190c7 100644
--- a/drivers/gpu/drm/i915/Kconfig
+++ b/drivers/gpu/drm/i915/Kconfig
@@ -3,7 +3,6 @@ config DRM_I915
 	depends on DRM
 	depends on X86 && PCI
 	select INTEL_GTT
-	select INTERVAL_TREE
 	# we need shmfs for the swappable backing store, and in particular
 	# the shmem_readpage() which depends upon tmpfs
 	select SHMEM
diff --git a/lib/Kconfig b/lib/Kconfig
index 0c8b78a9ae2e..52ca6668a16d 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -347,20 +347,6 @@ config TEXTSEARCH_FSM
 config BTREE
 	bool
 
-config INTERVAL_TREE
-	bool
-	help
-	  Simple, embeddable, interval-tree. Can find the start of an
-	  overlapping range in log(n) time and then iterate over all
-	  overlapping nodes. The algorithm is implemented as an
-	  augmented rbtree.
-
-	  See:
-
-		Documentation/rbtree.txt
-
-	  for more information.
-
 config RADIX_TREE_MULTIORDER
 	bool
 
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index e4587ebe52c7..5a3d884dd5af 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1774,7 +1774,6 @@ config RBTREE_TEST
 config INTERVAL_TREE_TEST
 	tristate "Interval tree test"
 	depends on m && DEBUG_KERNEL
-	select INTERVAL_TREE
 	help
 	  A benchmark measuring the performance of the interval tree library
 
diff --git a/lib/Makefile b/lib/Makefile
index 0166fbc0fa81..fd809ab10f7f 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -41,7 +41,7 @@ obj-y += bcd.o div64.o sort.o parser.o debug_locks.o random32.o \
 	 gcd.o lcm.o list_sort.o uuid.o flex_array.o iov_iter.o clz_ctz.o \
 	 bsearch.o find_bit.o llist.o memweight.o kfifo.o \
 	 percpu-refcount.o percpu_ida.o rhashtable.o reciprocal_div.o \
-	 once.o refcount.o usercopy.o
+	 once.o refcount.o usercopy.o interval_tree.o
 obj-y += string_helpers.o
 obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o
 obj-y += hexdump.o
@@ -81,7 +81,6 @@ obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
 obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
 
 obj-$(CONFIG_BTREE) += btree.o
-obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o
 obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
 obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
 obj-$(CONFIG_DEBUG_LIST) += list_debug.o
-- 
2.12.0