Error when building the kernel on top of 4.14-rc1 for target firmware_install?

[Yu Chen]

Hi,
kernel compile failed after running # make rpm

+ INSTALL_FW_PATH=/root/rpmbuild/BUILDROOT/kernel-4.14.0_rc1+-22.x86_64/lib/firmware/4.14.0-rc1+
+ make INSTALL_FW_PATH=/root/rpmbuild/BUILDROOT/kernel-4.14.0_rc1+-22.x86_64/lib/firmware/4.14.0-rc1+
firmware_install
make[2]: warning: jobserver unavailable: using -j1.  Add '+' to parent
make rule.
make[2]: *** No rule to make target 'firmware_install'.  Stop.

I have to hack the script to compile through:
diff --git a/scripts/package/mkspec b/scripts/package/mkspec
index bb43f15..cb9c1b3 100755
--- a/scripts/package/mkspec
+++ b/scripts/package/mkspec
@@ -92,7 +92,7 @@ echo 'mkdir -p $RPM_BUILD_ROOT'"/lib/firmware/$KERNELRELEASE"

 echo 'INSTALL_MOD_PATH=$RPM_BUILD_ROOT make %{?_smp_mflags}
KBUILD_SRC= mod-fw= modules_install'
 echo 'INSTALL_FW_PATH=$RPM_BUILD_ROOT'"/lib/firmware/$KERNELRELEASE"
-echo 'make INSTALL_FW_PATH=$INSTALL_FW_PATH' firmware_install
+echo 'make INSTALL_FW_PATH=$INSTALL_FW_PATH'
 echo "%ifarch ia64"

Not sure if this is a regression but several version ago it works well.

Thanks,
    Yu