# Use the default kernel version if the Makefile doesn't override it

LINUX_RELEASE?=1

ifeq ($(LINUX_VERSION),3.3.8)
  LINUX_KERNEL_MD5SUM:=f1058f64eed085deb44f10cee8541d50
endif
ifeq ($(LINUX_VERSION),3.6.11)
  LINUX_KERNEL_MD5SUM:=3d602ad7f7984509c3e923a5ae90bc54
endif
ifeq ($(LINUX_VERSION),3.8.13)
  LINUX_KERNEL_MD5SUM:=2af19d06cd47ec459519159cdd10542d
endif
ifeq ($(LINUX_VERSION),3.9.11)
  LINUX_KERNEL_MD5SUM:=edbf88eb7f7d34dbd5d3887726790755
endif
ifeq ($(LINUX_VERSION),3.10.44)
  LINUX_KERNEL_MD5SUM:=8a4006eff3bbd8aff58fe4b443223e7a
endif
ifeq ($(LINUX_VERSION),3.13.7)
  LINUX_KERNEL_MD5SUM:=370adced5e5c1cb1d0d621c2dae2723f
endif
ifeq ($(LINUX_VERSION),3.14.12)
  LINUX_KERNEL_MD5SUM:=7e76da2910683fe4dfbcec6ebfdd9a32
endif

# disable the md5sum check for unknown kernel versions
LINUX_KERNEL_MD5SUM?=x

split_version=$(subst ., ,$(1))
merge_version=$(subst $(space),.,$(1))
KERNEL_BASE=$(firstword $(subst -, ,$(LINUX_VERSION)))
KERNEL=$(call merge_version,$(wordlist 1,2,$(call split_version,$(KERNEL_BASE))))
ifeq ($(firstword $(call split_version,$(KERNEL_BASE))),2)
  KERNEL_PATCHVER=$(call merge_version,$(wordlist 1,3,$(call split_version,$(KERNEL_BASE))))
else
  KERNEL_PATCHVER=$(KERNEL)
endif