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

LINUX_RELEASE?=1

LINUX_VERSION-3.8  = .13
LINUX_VERSION-3.10 = .58
LINUX_VERSION-3.13 = .7
LINUX_VERSION-3.14 = .35
LINUX_VERSION-3.18 = .9
LINUX_VERSION-4.0 = -rc4

LINUX_KERNEL_MD5SUM-3.8.13  = 2af19d06cd47ec459519159cdd10542d
LINUX_KERNEL_MD5SUM-3.10.58 = 3ff3478b6351143cef22d4b81cf48b01
LINUX_KERNEL_MD5SUM-3.13.7  = 370adced5e5c1cb1d0d621c2dae2723f
LINUX_KERNEL_MD5SUM-3.14.35 = e5e92c40d14bc8ae9a8701db4e1cbb27
LINUX_KERNEL_MD5SUM-3.18.9  = 44cd16ada5eb03589f696f083cd2323b
LINUX_KERNEL_MD5SUM-4.0-rc4 = 0e37c076159538ff882f190d87fe9798

ifdef KERNEL_PATCHVER
  LINUX_VERSION:=$(KERNEL_PATCHVER)$(strip $(LINUX_VERSION-$(KERNEL_PATCHVER)))
endif

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))))
KERNEL_PATCHVER ?= $(KERNEL)

# disable the md5sum check for unknown kernel versions
LINUX_KERNEL_MD5SUM:=$(LINUX_KERNEL_MD5SUM-$(strip $(LINUX_VERSION)))
LINUX_KERNEL_MD5SUM?=x