# Use the default kernel version if the Makefile doesn't override it LINUX_RELEASE?=1 LINUX_VERSION-3.18 = .29 LINUX_VERSION-4.1 = .20 LINUX_VERSION-4.4 = .21 LINUX_KERNEL_MD5SUM-3.18.29 = b25737a0bc98e80d12200de93f239c28 LINUX_KERNEL_MD5SUM-4.1.20 = 075c38a3a23ca5bc80437b13606df00a LINUX_KERNEL_MD5SUM-4.4.21 = 9a59fa5f60f47aab78aaa5f0691b24a2 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