# Use the default kernel version if the Makefile doesn't override it LINUX_RELEASE?=1 LINUX_VERSION-3.18 = .43 LINUX_VERSION-4.4 = .79 LINUX_VERSION-4.9 = .40 LINUX_KERNEL_HASH-3.18.43 = 1236e8123a6ce537d5029232560966feed054ae31776fe8481dd7d18cdd5492c LINUX_KERNEL_HASH-4.4.79 = 0dbda3b51e11957fdb96c46844a823a212d46d6db680d77422ddea1a65bebca8 LINUX_KERNEL_HASH-4.9.40 = 025767f3652a656c7b5ed2949aef205f88a5acfd70ae3fe77710ad37f1662d9b 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