kernel: remove linux 4.4 support

[openwrt/staging/chunkeey.git] / target / linux / generic / pending-4.4 / 087-regmap-make-LZO-cache-optional.patch

diff --git a/target/linux/generic/pending-4.4/087-regmap-make-LZO-cache-optional.patch b/target/linux/generic/pending-4.4/087-regmap-make-LZO-cache-optional.patch
deleted file mode 100644 (file)
index c26994e..0000000
--- a/target/linux/generic/pending-4.4/087-regmap-make-LZO-cache-optional.patch
+++ /dev/null
@@ -1,69 +0,0 @@
-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[] = {
-       &regcache_rbtree_ops,
-+#if IS_ENABLED(CONFIG_REGCACHE_COMPRESSED)
-       &regcache_lzo_ops,
-+#endif
-       &regcache_flat_ops,
- };
-