kernel: generic: Add kernel 4.14 support

This adds initial support for kernel 4.14 based on the patches for
kernel 4.9.

In the configuration I deactivated some of the new possible security
features like:
CONFIG_REFCOUNT_FULL
CONFIG_SLAB_FREELIST_HARDENED
CONFIG_SOFTLOCKUP_DETECTOR
CONFIG_WARN_ALL_UNSEEDED_RANDOM

And these overlay FS options are also deactivated:
CONFIG_OVERLAY_FS_INDEX
CONFIG_OVERLAY_FS_REDIRECT_DIR

I activated this:
CONFIG_FORTIFY_SOURCE
CONFIG_POSIX_TIMERS
CONFIG_SLAB_MERGE_DEFAULT
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED

I am not sure if I did the porting correct for the following patches:
target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch
target/linux/generic/hack-4.14/220-gc_sections.patch
target/linux/generic/hack-4.14/321-powerpc_crtsavres_prereq.patch
target/linux/generic/pending-4.14/305-mips_module_reloc.patch
target/linux/generic/pending-4.14/611-netfilter_match_bypass_default_table.patch
target/linux/generic/pending-4.14/680-NET-skip-GRO-for-foreign-MAC-addresses.patch

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 109 insertions, 0 deletions

diff --git a/target/linux/generic/hack-4.14/259-regmap_dynamic.patch b/target/linux/generic/hack-4.14/259-regmap_dynamic.patch
new file mode 100644
index 0000000000..1c6e78df30
--- /dev/null
+++ b/target/linux/generic/hack-4.14/259-regmap_dynamic.patch
@@ -0,0 +1,109 @@
+From 811d9e2268a62b830cfe93cd8bc929afcb8b198b Mon Sep 17 00:00:00 2001
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 15 Jul 2017 21:12:38 +0200
+Subject: kernel: move regmap bloat out of the kernel image if it is only being used in modules
+
+lede-commit: 96f39119815028073583e4fca3a9c5fe9141e998
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ drivers/base/regmap/Kconfig  | 15 ++++++++++-----
+ drivers/base/regmap/Makefile | 12 ++++++++----
+ drivers/base/regmap/regmap.c |  3 +++
+ include/linux/regmap.h       |  2 +-
+ 4 files changed, 22 insertions(+), 10 deletions(-)
+
+--- a/drivers/base/regmap/Kconfig
++++ b/drivers/base/regmap/Kconfig
+@@ -4,9 +4,8 @@
+ # subsystems should select the appropriate symbols.
+ 
+ config REGMAP
+-	default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
+ 	select IRQ_DOMAIN if REGMAP_IRQ
+-	bool
++	tristate "Regmap"
+ 
+ config REGCACHE_COMPRESSED
+ 	select LZO_COMPRESS
+@@ -17,23 +16,30 @@ config REGMAP_AC97
+ 	tristate
+ 
+ config REGMAP_I2C
+-	tristate
++	tristate "Regmap I2C"
++	select REGMAP
+ 	depends on I2C
+ 
+ config REGMAP_SPI
+-	tristate
++	tristate "Regmap SPI"
++	select REGMAP
++	depends on SPI_MASTER
+ 	depends on SPI
+ 
+ config REGMAP_SPMI
++	select REGMAP
+ 	tristate
+ 	depends on SPMI
+ 
+ config REGMAP_W1
++	select REGMAP
+ 	tristate
+ 	depends on W1
+ 
+ config REGMAP_MMIO
+-	tristate
++	tristate "Regmap MMIO"
++	select REGMAP
+ 
+ config REGMAP_IRQ
++	select REGMAP
+ 	bool
+--- a/drivers/base/regmap/Makefile
++++ b/drivers/base/regmap/Makefile
+@@ -2,10 +2,14 @@
+ # For include/trace/define_trace.h to include trace.h
+ CFLAGS_regmap.o := -I$(src)
+ 
+-obj-$(CONFIG_REGMAP) += regmap.o regcache.o
+-obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-flat.o
+-obj-$(CONFIG_REGCACHE_COMPRESSED) += regcache-lzo.o
+-obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
++regmap-core-objs = regmap.o regcache.o regcache-rbtree.o regcache-flat.o
++ifdef CONFIG_DEBUG_FS
++regmap-core-objs += regmap-debugfs.o
++endif
++ifdef CONFIG_REGCACHE_COMPRESSED
++regmap-core-objs += regcache-lzo.o
++endif
++obj-$(CONFIG_REGMAP) += regmap-core.o
+ obj-$(CONFIG_REGMAP_AC97) += regmap-ac97.o
+ obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
+ obj-$(CONFIG_REGMAP_SPI) += regmap-spi.o
+--- a/drivers/base/regmap/regmap.c
++++ b/drivers/base/regmap/regmap.c
+@@ -13,6 +13,7 @@
+ #include <linux/device.h>
+ #include <linux/slab.h>
+ #include <linux/export.h>
++#include <linux/module.h>
+ #include <linux/mutex.h>
+ #include <linux/err.h>
+ #include <linux/of.h>
+@@ -2926,3 +2927,5 @@ static int __init regmap_initcall(void)
+ 	return 0;
+ }
+ postcore_initcall(regmap_initcall);
++
++MODULE_LICENSE("GPL");
+--- a/include/linux/regmap.h
++++ b/include/linux/regmap.h
+@@ -139,7 +139,7 @@ struct reg_sequence {
+ 	pollret ?: ((cond) ? 0 : -ETIMEDOUT); \
+ })
+ 
+-#ifdef CONFIG_REGMAP
++#if IS_ENABLED(CONFIG_REGMAP)
+ 
+ enum regmap_endian {
+ 	/* Unspecified -> 0 -> Backwards compatible default */