Hello, I am observing a possible bug when trying to build external firmware file into the kernel. Here are the steps to reproduce the problem I observe.
1) Retrieve Linux 3.13-rc1 (I can confirm this in 3.10.18 stable as well) 2) Clean up the source tree $ git clean -fdx 3) Configure the kernel (minimal configuration is sufficient) $ make allnoconfig 4) Produce a dummy firmware file to be built into the kernel $ echo "hello" > /tmp/firmware.fw 5) Build the kernel (note: I tested this bug on ARCH=arm and ARCH=x86_64) $ make CONFIG_EXTRA_FIRMWARE="firmware.fw" CONFIG_EXTRA_FIRMWARE_DIR="/tmp/" What I observe is this output: LD sound/built-in.o make[1]: *** No rule to make target `include/config/extra/firmware/dir.h', needed by `firmware//tmp/firmware.fw.gen.S'. Stop. make: *** [firmware] Error 2 Interestingly enough, if I place these same options into the kernel .config, using the commands like these below for example, the kernel builds correctly. echo -e \ 'CONFIG_EXTRA_FIRMWARE_DIR="/tmp/"\nCONFIG_EXTRA_FIRMWARE="firmware.fw"' \ >> .config make oldconfig make Is this a known issue please? Is there a way to specify the extra firmware file to be built into the kernel on the kernel build command line please? Thank you very much! Best regards, Marek Vasut -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/