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, 64 insertions, 0 deletions

diff --git a/target/linux/generic/hack-4.14/904-debloat_dma_buf.patch b/target/linux/generic/hack-4.14/904-debloat_dma_buf.patch
new file mode 100644
index 0000000000..8f1a3bca82
--- /dev/null
+++ b/target/linux/generic/hack-4.14/904-debloat_dma_buf.patch
@@ -0,0 +1,64 @@
+From e3692cb2fcd5ba1244512a0f43b8118f65f1c375 Mon Sep 17 00:00:00 2001
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 8 Jul 2017 08:20:43 +0200
+Subject: debloat: dmabuf
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ drivers/base/Kconfig      |  2 +-
+ drivers/dma-buf/Makefile  | 10 +++++++---
+ drivers/dma-buf/dma-buf.c |  4 +++-
+ kernel/sched/core.c       |  1 +
+ 4 files changed, 12 insertions(+), 5 deletions(-)
+
+--- a/drivers/base/Kconfig
++++ b/drivers/base/Kconfig
+@@ -243,7 +243,7 @@ config SOC_BUS
+ source "drivers/base/regmap/Kconfig"
+ 
+ config DMA_SHARED_BUFFER
+-	bool
++	tristate
+ 	default n
+ 	select ANON_INODES
+ 	help
+--- a/drivers/dma-buf/Makefile
++++ b/drivers/dma-buf/Makefile
+@@ -1,3 +1,7 @@
+-obj-y := dma-buf.o dma-fence.o dma-fence-array.o reservation.o seqno-fence.o
+-obj-$(CONFIG_SYNC_FILE)		+= sync_file.o
+-obj-$(CONFIG_SW_SYNC)		+= sw_sync.o sync_debug.o
++obj-$(CONFIG_DMA_SHARED_BUFFER) := dma-shared-buffer.o
++
++dma-buf-objs-y := dma-buf.o dma-fence.o dma-fence-array.o reservation.o seqno-fence.o
++dma-buf-objs-$(CONFIG_SYNC_FILE)		+= sync_file.o
++dma-buf-objs-$(CONFIG_SW_SYNC)		+= sw_sync.o sync_debug.o
++
++dma-shared-buffer-objs :=  $(dma-buf-objs-y)
+--- a/drivers/dma-buf/dma-buf.c
++++ b/drivers/dma-buf/dma-buf.c
+@@ -34,6 +34,7 @@
+ #include <linux/poll.h>
+ #include <linux/reservation.h>
+ #include <linux/mm.h>
++#include <linux/module.h>
+ 
+ #include <uapi/linux/dma-buf.h>
+ 
+@@ -1205,4 +1206,5 @@ static void __exit dma_buf_deinit(void)
+ {
+ 	dma_buf_uninit_debugfs();
+ }
+-__exitcall(dma_buf_deinit);
++module_exit(dma_buf_deinit);
++MODULE_LICENSE("GPL");
+--- a/kernel/sched/core.c
++++ b/kernel/sched/core.c
+@@ -2146,6 +2146,7 @@ int wake_up_state(struct task_struct *p,
+ {
+ 	return try_to_wake_up(p, state, 0);
+ }
++EXPORT_SYMBOL_GPL(wake_up_state);
+ 
+ /*
+  * Perform scheduler related setup for a newly forked process p.