On Wed, Feb 26, 2020 at 5:04 AM Jiri Olsa <jolsa@xxxxxxxxxx> wrote: > > The kbuild test robot reported compile issue on x86 in one of > the following patches that adds <linux/kallsyms.h> include into > <linux/bpf.h>, which is picked up by init_32.c object. > > The problem is that <linux/kallsyms.h> defines global function > is_kernel_text which colides with the static function of the > same name defined in init_32.c: > > $ make ARCH=i386 > ... > >> arch/x86/mm/init_32.c:241:19: error: redefinition of 'is_kernel_text' > static inline int is_kernel_text(unsigned long addr) > ^~~~~~~~~~~~~~ > In file included from include/linux/bpf.h:21:0, > from include/linux/bpf-cgroup.h:5, > from include/linux/cgroup-defs.h:22, > from include/linux/cgroup.h:28, > from include/linux/hugetlb.h:9, > from arch/x86/mm/init_32.c:18: > include/linux/kallsyms.h:31:19: note: previous definition of 'is_kernel_text' was here > static inline int is_kernel_text(unsigned long addr) > > Renaming the init_32.c is_kernel_text function to __is_kernel_text. > > Reported-by: kbuild test robot <lkp@xxxxxxxxx> > Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx> Acked-by: Song Liu <songliubraving@xxxxxx>
