Including linux/kmod.h alone results in 1.5 MB of preprocessed output, even though it provides only a few functions and macros. The header currently depends on: * __printf() -> linux/compiler_attributes.h, * ENOSYS -> linux/errno.h, * bool -> linux/types.h. Include only these files, reducing the preprocessed output to 10 kB. Reviewed-by: Aaron Tomlin <atomlin@atomlin.com> Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>