# Use the default kernel version if the Makefile doesn't override it LINUX_RELEASE?=1 LINUX_VERSION-3.18 = .43 LINUX_VERSION-4.4 = .71 LINUX_VERSION-4.9 = .31 LINUX_KERNEL_HASH-3.18.43 = 1236e8123a6ce537d5029232560966feed054ae31776fe8481dd7d18cdd5492c LINUX_KERNEL_HASH-4.4.71 = 44cd5532d6df32197fd0f89e6f8c542fcfb76b52155a4d3a609ef4898522e6ab LINUX_KERNEL_HASH-4.9.31 = 28cad8b66216da2550155b7a77f37041bde40b821567d1b288e5e9fb6cca9856 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 ?= $(KERNEL) # disable the md5sum check for unknown kernel versions LINUX_KERNEL_HASH:=$(LINUX_KERNEL_HASH-$(strip $(LINUX_VERSION))) LINUX_KERNEL_HASH?=x