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-rw-r--r--include/kernel-version.mk6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/kernel-version.mk b/include/kernel-version.mk
index 45139a6a77..003fc085b3 100644
--- a/include/kernel-version.mk
+++ b/include/kernel-version.mk
@@ -38,6 +38,8 @@ endif
# disable the md5sum check for unknown kernel versions
LINUX_KERNEL_MD5SUM?=x
-KERNEL?=2.$(word 2,$(subst ., ,$(strip $(LINUX_VERSION))))
-KERNEL_PATCHVER=$(shell echo '$(LINUX_VERSION)' | cut -d. -f1,2,3 | cut -d- -f1)
+split_version=$(subst ., ,$(1))
+merge_version=$(subst $(space),.,$(1))
+KERNEL=$(call merge_version,$(wordlist 1,2,$(call split_version,$(LINUX_VERSION))))
+KERNEL_PATCHVER=$(call merge_version,$(wordlist 1,3,$(call split_version,$(LINUX_VERSION))))