On Fri, Jul 17, 2020 at 11:47:06AM -0700, Yonghong Song wrote: > The BTF_ID_LIST macro definition in btf_ids.h: > #define BTF_ID_LIST(name) \ > __BTF_ID_LIST(name) \ > extern u32 name[]; > > The variable defined in __BTF_ID_LIST has > ".local" directive, which means the variable > is only available in the current file. > So change the scope of "name" in the declaration > from "extern" to "static". > > Signed-off-by: Yonghong Song <yhs@xxxxxx> Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx> thanks, jirka > --- > include/linux/btf_ids.h | 2 +- > tools/include/linux/btf_ids.h | 2 +- > 2 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/include/linux/btf_ids.h b/include/linux/btf_ids.h > index 1cdb56950ffe..cebc9a655959 100644 > --- a/include/linux/btf_ids.h > +++ b/include/linux/btf_ids.h > @@ -66,7 +66,7 @@ asm( \ > > #define BTF_ID_LIST(name) \ > __BTF_ID_LIST(name) \ > -extern u32 name[]; > +static u32 name[]; > > /* > * The BTF_ID_UNUSED macro defines 4 zero bytes. > diff --git a/tools/include/linux/btf_ids.h b/tools/include/linux/btf_ids.h > index fe019774f8a7..b870776201e5 100644 > --- a/tools/include/linux/btf_ids.h > +++ b/tools/include/linux/btf_ids.h > @@ -64,7 +64,7 @@ asm( \ > > #define BTF_ID_LIST(name) \ > __BTF_ID_LIST(name) \ > -extern u32 name[]; > +static u32 name[]; > > /* > * The BTF_ID_UNUSED macro defines 4 zero bytes. > -- > 2.24.1 >
