# Use the default kernel version if the Makefile doesn't override it
-ifeq ($(LINUX_VERSION),)
- ifeq ($(KERNEL),2.4)
- LINUX_VERSION:=2.4.34
- LINUX_RELEASE:=1
- LINUX_KERNEL_MD5SUM:=f59665540a7f3351ea416a0dad104b55
- else
- LINUX_VERSION:=2.6.19.1
- LINUX_RELEASE:=1
- LINUX_KERNEL_MD5SUM:=2ab08fdfddc00e09b3d5bc7397d3c8be
- endif
-endif
-KERNEL:=2.$(word 2,$(subst ., ,$(strip $(LINUX_VERSION))))
+LINUX_RELEASE?=1
+
+ifeq ($(LINUX_VERSION),2.6.30.10)
+ LINUX_KERNEL_MD5SUM:=eb6be465f914275967a5602cb33662f5
+endif
+ifeq ($(LINUX_VERSION),2.6.31.14)
+ LINUX_KERNEL_MD5SUM:=3e7feb224197d8e174a90dd3759979fd
+endif
+ifeq ($(LINUX_VERSION),2.6.32.33)
+ LINUX_KERNEL_MD5SUM:=2b4e5ed210534d9b4f5a563089dfcc80
+endif
+ifeq ($(LINUX_VERSION),2.6.34.8)
+ LINUX_KERNEL_MD5SUM:=6dedac89df1af57b08981fcc6ad387db
+endif
+ifeq ($(LINUX_VERSION),2.6.35.11)
+ LINUX_KERNEL_MD5SUM:=4c9ee33801f5ad0f4d5e615fac66d535
+endif
+ifeq ($(LINUX_VERSION),2.6.36.4)
+ LINUX_KERNEL_MD5SUM:=c05dd941d0e249695e9f72568888e1bf
+endif
+ifeq ($(LINUX_VERSION),2.6.37.6)
+ LINUX_KERNEL_MD5SUM:=05970afdce8ec4323a10dcd42bc4fb0c
+endif
+ifeq ($(LINUX_VERSION),2.6.38.6)
+ LINUX_KERNEL_MD5SUM:=e896a3bb3185b8a8af8e2f010f63c02e
+endif
+ifeq ($(LINUX_VERSION),2.6.39)
+ LINUX_KERNEL_MD5SUM:=1aab7a741abe08d42e8eccf20de61e05
+endif
+
+# disable the md5sum check for unknown kernel versions
+LINUX_KERNEL_MD5SUM?=x
+
+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=$(call merge_version,$(wordlist 1,3,$(call split_version,$(KERNEL_BASE))))