There are no users, so hide it and let future users select it. Saves about ~17 kB on MIPS. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>master
parent
f9b7bfa088
commit
fd1096e351
@ -0,0 +1,67 @@ |
||||
From de88e9b0354c2e3ff8eae3f97afe43a34f5ed239 Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
Date: Sat, 13 May 2017 13:03:21 +0200
|
||||
Subject: [PATCH] regmap: make LZO cache optional
|
||||
|
||||
Commit 2cbbb579bcbe3 ("regmap: Add the LZO cache support") added support
|
||||
for LZO compression in regcache, but there were never any users added
|
||||
afterwards. Since LZO support itself has its own size, it currently is
|
||||
rather a deoptimization.
|
||||
|
||||
So make it optional by introducing a symbol that can be selected by
|
||||
drivers wanting to make use of it.
|
||||
|
||||
Saves e.g. ~46 kB on MIPS (size of LZO support + regcache LZO code).
|
||||
|
||||
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
---
|
||||
I tried using google to find any users (even out-of-tree ones), but at
|
||||
best I found a single driver submission that was switched to RBTREE in
|
||||
subsequent resubmissions (MFD_SMSC).
|
||||
|
||||
One could maybe also just drop the code because of no users for 5 years,
|
||||
but that would be up to the maintainer(s) to decide.
|
||||
|
||||
drivers/base/regmap/Kconfig | 5 ++++-
|
||||
drivers/base/regmap/Makefile | 3 ++-
|
||||
drivers/base/regmap/regcache.c | 2 ++
|
||||
3 files changed, 8 insertions(+), 2 deletions(-)
|
||||
|
||||
--- a/drivers/base/regmap/Kconfig
|
||||
+++ b/drivers/base/regmap/Kconfig
|
||||
@@ -4,9 +4,12 @@
|
||||
|
||||
config REGMAP
|
||||
default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_MMIO || REGMAP_IRQ)
|
||||
+ select IRQ_DOMAIN if REGMAP_IRQ
|
||||
+ bool
|
||||
+
|
||||
+config REGCACHE_COMPRESSED
|
||||
select LZO_COMPRESS
|
||||
select LZO_DECOMPRESS
|
||||
- select IRQ_DOMAIN if REGMAP_IRQ
|
||||
bool
|
||||
|
||||
config REGMAP_I2C
|
||||
--- a/drivers/base/regmap/Makefile
|
||||
+++ b/drivers/base/regmap/Makefile
|
||||
@@ -1,5 +1,6 @@
|
||||
obj-$(CONFIG_REGMAP) += regmap.o regcache.o
|
||||
-obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-lzo.o regcache-flat.o
|
||||
+obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-flat.o
|
||||
+obj-$(CONFIG_REGCACHE_COMPRESSED) += regcache-lzo.o
|
||||
obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
|
||||
obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
|
||||
obj-$(CONFIG_REGMAP_SPI) += regmap-spi.o
|
||||
--- a/drivers/base/regmap/regcache.c
|
||||
+++ b/drivers/base/regmap/regcache.c
|
||||
@@ -21,7 +21,9 @@
|
||||
|
||||
static const struct regcache_ops *cache_types[] = {
|
||||
®cache_rbtree_ops,
|
||||
+#if IS_ENABLED(CONFIG_REGCACHE_COMPRESSED)
|
||||
®cache_lzo_ops,
|
||||
+#endif
|
||||
®cache_flat_ops,
|
||||
};
|
||||
|
@ -0,0 +1,69 @@ |
||||
From de88e9b0354c2e3ff8eae3f97afe43a34f5ed239 Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
Date: Sat, 13 May 2017 13:03:21 +0200
|
||||
Subject: [PATCH] regmap: make LZO cache optional
|
||||
|
||||
Commit 2cbbb579bcbe3 ("regmap: Add the LZO cache support") added support
|
||||
for LZO compression in regcache, but there were never any users added
|
||||
afterwards. Since LZO support itself has its own size, it currently is
|
||||
rather a deoptimization.
|
||||
|
||||
So make it optional by introducing a symbol that can be selected by
|
||||
drivers wanting to make use of it.
|
||||
|
||||
Saves e.g. ~46 kB on MIPS (size of LZO support + regcache LZO code).
|
||||
|
||||
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
---
|
||||
I tried using google to find any users (even out-of-tree ones), but at
|
||||
best I found a single driver submission that was switched to RBTREE in
|
||||
subsequent resubmissions (MFD_SMSC).
|
||||
|
||||
One could maybe also just drop the code because of no users for 5 years,
|
||||
but that would be up to the maintainer(s) to decide.
|
||||
|
||||
drivers/base/regmap/Kconfig | 5 ++++-
|
||||
drivers/base/regmap/Makefile | 3 ++-
|
||||
drivers/base/regmap/regcache.c | 2 ++
|
||||
3 files changed, 8 insertions(+), 2 deletions(-)
|
||||
|
||||
--- a/drivers/base/regmap/Kconfig
|
||||
+++ b/drivers/base/regmap/Kconfig
|
||||
@@ -4,9 +4,12 @@
|
||||
|
||||
config REGMAP
|
||||
default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
|
||||
+ select IRQ_DOMAIN if REGMAP_IRQ
|
||||
+ bool
|
||||
+
|
||||
+config REGCACHE_COMPRESSED
|
||||
select LZO_COMPRESS
|
||||
select LZO_DECOMPRESS
|
||||
- select IRQ_DOMAIN if REGMAP_IRQ
|
||||
bool
|
||||
|
||||
config REGMAP_AC97
|
||||
--- a/drivers/base/regmap/Makefile
|
||||
+++ b/drivers/base/regmap/Makefile
|
||||
@@ -2,7 +2,8 @@
|
||||
CFLAGS_regmap.o := -I$(src)
|
||||
|
||||
obj-$(CONFIG_REGMAP) += regmap.o regcache.o
|
||||
-obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-lzo.o regcache-flat.o
|
||||
+obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-flat.o
|
||||
+obj-$(CONFIG_REGCACHE_COMPRESSED) += regcache-lzo.o
|
||||
obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
|
||||
obj-$(CONFIG_REGMAP_AC97) += regmap-ac97.o
|
||||
obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
|
||||
--- a/drivers/base/regmap/regcache.c
|
||||
+++ b/drivers/base/regmap/regcache.c
|
||||
@@ -21,7 +21,9 @@
|
||||
|
||||
static const struct regcache_ops *cache_types[] = {
|
||||
®cache_rbtree_ops,
|
||||
+#if IS_ENABLED(CONFIG_REGCACHE_COMPRESSED)
|
||||
®cache_lzo_ops,
|
||||
+#endif
|
||||
®cache_flat_ops,
|
||||
};
|
||||
|
@ -0,0 +1,69 @@ |
||||
From de88e9b0354c2e3ff8eae3f97afe43a34f5ed239 Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
Date: Sat, 13 May 2017 13:03:21 +0200
|
||||
Subject: [PATCH] regmap: make LZO cache optional
|
||||
|
||||
Commit 2cbbb579bcbe3 ("regmap: Add the LZO cache support") added support
|
||||
for LZO compression in regcache, but there were never any users added
|
||||
afterwards. Since LZO support itself has its own size, it currently is
|
||||
rather a deoptimization.
|
||||
|
||||
So make it optional by introducing a symbol that can be selected by
|
||||
drivers wanting to make use of it.
|
||||
|
||||
Saves e.g. ~46 kB on MIPS (size of LZO support + regcache LZO code).
|
||||
|
||||
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
---
|
||||
I tried using google to find any users (even out-of-tree ones), but at
|
||||
best I found a single driver submission that was switched to RBTREE in
|
||||
subsequent resubmissions (MFD_SMSC).
|
||||
|
||||
One could maybe also just drop the code because of no users for 5 years,
|
||||
but that would be up to the maintainer(s) to decide.
|
||||
|
||||
drivers/base/regmap/Kconfig | 5 ++++-
|
||||
drivers/base/regmap/Makefile | 3 ++-
|
||||
drivers/base/regmap/regcache.c | 2 ++
|
||||
3 files changed, 8 insertions(+), 2 deletions(-)
|
||||
|
||||
--- a/drivers/base/regmap/Kconfig
|
||||
+++ b/drivers/base/regmap/Kconfig
|
||||
@@ -4,9 +4,12 @@
|
||||
|
||||
config REGMAP
|
||||
default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
|
||||
+ select IRQ_DOMAIN if REGMAP_IRQ
|
||||
+ bool
|
||||
+
|
||||
+config REGCACHE_COMPRESSED
|
||||
select LZO_COMPRESS
|
||||
select LZO_DECOMPRESS
|
||||
- select IRQ_DOMAIN if REGMAP_IRQ
|
||||
bool
|
||||
|
||||
config REGMAP_AC97
|
||||
--- a/drivers/base/regmap/Makefile
|
||||
+++ b/drivers/base/regmap/Makefile
|
||||
@@ -2,7 +2,8 @@
|
||||
CFLAGS_regmap.o := -I$(src)
|
||||
|
||||
obj-$(CONFIG_REGMAP) += regmap.o regcache.o
|
||||
-obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-lzo.o regcache-flat.o
|
||||
+obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-flat.o
|
||||
+obj-$(CONFIG_REGCACHE_COMPRESSED) += regcache-lzo.o
|
||||
obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
|
||||
obj-$(CONFIG_REGMAP_AC97) += regmap-ac97.o
|
||||
obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
|
||||
--- a/drivers/base/regmap/regcache.c
|
||||
+++ b/drivers/base/regmap/regcache.c
|
||||
@@ -21,7 +21,9 @@
|
||||
|
||||
static const struct regcache_ops *cache_types[] = {
|
||||
®cache_rbtree_ops,
|
||||
+#if IS_ENABLED(CONFIG_REGCACHE_COMPRESSED)
|
||||
®cache_lzo_ops,
|
||||
+#endif
|
||||
®cache_flat_ops,
|
||||
};
|
||||
|
Loading…
Reference in new issue