generic: add linux 4.1 support

Boot tested: http://pastebin.com/L6aAb9xj

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
[jogo:
  update to 4.1 final
  add patches added since submission
  delete patches applied in later rcs
  restore commit messages in 220-gc-sections and 304-mips_disable_fpu
  fix 050-backport_netfilter_rtcache to match new API
  update inlined dma ops with upstream changes
  add missing config symbols
  enabled CONFIG_MULTIUSER
  update kmod defintions for 4.1
]
Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 46112

1 files changed, 25 insertions, 0 deletions

diff --git a/target/linux/generic/patches-4.1/000-keep_initrafs_the_default.patch b/target/linux/generic/patches-4.1/000-keep_initrafs_the_default.patch
new file mode 100644
index 0000000000..5e56d4415d
--- /dev/null
+++ b/target/linux/generic/patches-4.1/000-keep_initrafs_the_default.patch
@@ -0,0 +1,25 @@
+Upstream changed the default rootfs to tmpfs when none has been passed
+to the kernel - this doesn't fit our purposes, so change it back.
+
+Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
+
+--- a/init/do_mounts.c
++++ b/init/do_mounts.c
+@@ -628,6 +628,7 @@ int __init init_rootfs(void)
+ 	if (err)
+ 		return err;
+ 
++#if 0
+ 	if (IS_ENABLED(CONFIG_TMPFS) && !saved_root_name[0] &&
+ 		(!root_fs_names || strstr(root_fs_names, "tmpfs"))) {
+ 		err = shmem_init();
+@@ -635,6 +636,9 @@ int __init init_rootfs(void)
+ 	} else {
+ 		err = init_ramfs_fs();
+ 	}
++#else
++	err = init_ramfs_fs();
++#endif
+ 
+ 	if (err)
+ 		unregister_filesystem(&rootfs_fs_type);