[openwrt/openwrt] toolchain: kernel-headers: fix check target for kernel Git tree

[LEDE Commits]

ynezz pushed a commit to openwrt/openwrt.git, branch openwrt-19.07:
https://git.openwrt.org/8c2bb1d9b6b71be31ff79c1783b42b457d305cd0

commit 8c2bb1d9b6b71be31ff79c1783b42b457d305cd0
Author: Petr Štetiar <ynezz at true.cz>
AuthorDate: Sat Nov 21 16:05:08 2020 +0100

    toolchain: kernel-headers: fix check target for kernel Git tree
    
    Currently the check target fails if the kernel Git tree is used:
    
     $ make toolchain/kernel-headers/{download,check}
    
      make[2]: Entering directory 'toolchain/kernel-headers'
      Makefile:105: *** ERROR: Unknown pack format for file openwrt/tmp/dl/.  Stop.
      make[2]: Leaving directory 'toolchain/kernel-headers'
      toolchain/Makefile:100: recipe for target 'toolchain/kernel-headers/check' failed
    
    Signed-off-by: Petr Štetiar <ynezz at true.cz>
    (cherry picked from commit bb7ba6b6a81d1fb7ac6075edfd8e8b713dd61db2)
---
 toolchain/kernel-headers/Makefile | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/toolchain/kernel-headers/Makefile b/toolchain/kernel-headers/Makefile
index f7842cb9bd..1da1946a14 100644
--- a/toolchain/kernel-headers/Makefile
+++ b/toolchain/kernel-headers/Makefile
@@ -17,11 +17,18 @@ include $(INCLUDE_DIR)/kernel.mk
 PKG_NAME:=linux
 PKG_VERSION:=$(LINUX_VERSION)
 PKG_SOURCE:=$(LINUX_SOURCE)
-ifneq ($(strip $(CONFIG_KERNEL_GIT_CLONE_URI)),"")
+ifneq ($(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
   PKG_SOURCE_PROTO:=git
   PKG_SOURCE_URL:=$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI))
-  PKG_SOURCE_VERSION:=$(CONFIG_KERNEL_GIT_REF)
+  PKG_SOURCE_VERSION:=$(call qstrip,$(CONFIG_KERNEL_GIT_REF))
+ifdef CHECK
+  include $(INCLUDE_DIR)/kernel-version.mk
+  PKG_VERSION:=$(LINUX_VERSION)
 else
+  PKG_SOURCE:=$(LINUX_SOURCE)
+endif
+else
+  PKG_SOURCE:=$(LINUX_SOURCE)
   PKG_SOURCE_URL:=$(LINUX_SITE)
 endif
 HOST_BUILD_DIR:=$(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)