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, 46 insertions, 0 deletions

diff --git a/target/linux/generic/pending-4.14/240-remove-unsane-filenames-from-deps_initramfs-list.patch b/target/linux/generic/pending-4.14/240-remove-unsane-filenames-from-deps_initramfs-list.patch
new file mode 100644
index 0000000000..f440305c9b
--- /dev/null
+++ b/target/linux/generic/pending-4.14/240-remove-unsane-filenames-from-deps_initramfs-list.patch
@@ -0,0 +1,46 @@
+From: Gabor Juhos <juhosg@openwrt.org>
+Subject: usr: sanitize deps_initramfs list
+
+If any filename in the intramfs dependency
+list contains a colon, that causes a kernel
+build error like this:
+
+/devel/openwrt/build_dir/linux-ar71xx_generic/linux-3.6.6/usr/Makefile:58: *** multiple target patterns.  Stop.
+make[5]: *** [usr] Error 2
+
+Fix it by removing such filenames from the
+deps_initramfs list.
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ usr/Makefile | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+--- a/usr/Makefile
++++ b/usr/Makefile
+@@ -39,20 +39,22 @@ ifneq ($(wildcard $(obj)/$(datafile_d_y)
+ 	include $(obj)/$(datafile_d_y)
+ endif
+ 
++deps_initramfs_sane := $(foreach v,$(deps_initramfs),$(if $(findstring :,$(v)),,$(v)))
++
+ quiet_cmd_initfs = GEN     $@
+       cmd_initfs = $(initramfs) -o $@ $(ramfs-args) $(ramfs-input)
+ 
+ targets := $(datafile_y)
+ 
+ # do not try to update files included in initramfs
+-$(deps_initramfs): ;
++$(deps_initramfs_sane): ;
+ 
+-$(deps_initramfs): klibcdirs
++$(deps_initramfs_sane): klibcdirs
+ # We rebuild initramfs_data.cpio if:
+ # 1) Any included file is newer then initramfs_data.cpio
+ # 2) There are changes in which files are included (added or deleted)
+ # 3) If gen_init_cpio are newer than initramfs_data.cpio
+ # 4) arguments to gen_initramfs.sh changes
+-$(obj)/$(datafile_y): $(obj)/gen_init_cpio $(deps_initramfs) klibcdirs
++$(obj)/$(datafile_y): $(obj)/gen_init_cpio $(deps_initramfs_sane) klibcdirs
+ 	$(Q)$(initramfs) -l $(ramfs-input) > $(obj)/$(datafile_d_y)
+ 	$(call if_changed,initfs)