| Message ID | 20190625202700.28030-1-ivan.khoronzhuk@linaro.org |
|---|---|
| State | Changes Requested |
| Delegated to: | BPF Maintainers |
| Headers | show |
| Series | [bpf-next] libbpf: fix max() type mismatch for 32bit | expand |
On Tue, Jun 25, 2019 at 1:28 PM Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> wrote: > > It fixes build error for 32bit caused by type mismatch > size_t/unsigned long. > > Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Acked-by: Song Liu <songliubraving@fb.com> > --- > tools/lib/bpf/libbpf.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c > index 68f45a96769f..5186b7710430 100644 > --- a/tools/lib/bpf/libbpf.c > +++ b/tools/lib/bpf/libbpf.c > @@ -778,7 +778,7 @@ static struct bpf_map *bpf_object__add_map(struct bpf_object *obj) > if (obj->nr_maps < obj->maps_cap) > return &obj->maps[obj->nr_maps++]; > > - new_cap = max(4ul, obj->maps_cap * 3 / 2); > + new_cap = max((size_t)4, obj->maps_cap * 3 / 2); > new_maps = realloc(obj->maps, new_cap * sizeof(*obj->maps)); > if (!new_maps) { > pr_warning("alloc maps for object failed\n"); > -- > 2.17.1 >
On Tue, Jun 25, 2019 at 1:28 PM Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> wrote: > > It fixes build error for 32bit caused by type mismatch > size_t/unsigned long. > > Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> > --- Sorry, forgot to mention, this should probably have Fixes: bf82927125dd ("libbpf: refactor map initialization") With that: Acked-by: Andrii Nakryiko <andriin@fb.com> > tools/lib/bpf/libbpf.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c > index 68f45a96769f..5186b7710430 100644 > --- a/tools/lib/bpf/libbpf.c > +++ b/tools/lib/bpf/libbpf.c > @@ -778,7 +778,7 @@ static struct bpf_map *bpf_object__add_map(struct bpf_object *obj) > if (obj->nr_maps < obj->maps_cap) > return &obj->maps[obj->nr_maps++]; > > - new_cap = max(4ul, obj->maps_cap * 3 / 2); > + new_cap = max((size_t)4, obj->maps_cap * 3 / 2); > new_maps = realloc(obj->maps, new_cap * sizeof(*obj->maps)); > if (!new_maps) { > pr_warning("alloc maps for object failed\n"); > -- > 2.17.1 >
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 68f45a96769f..5186b7710430 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -778,7 +778,7 @@ static struct bpf_map *bpf_object__add_map(struct bpf_object *obj) if (obj->nr_maps < obj->maps_cap) return &obj->maps[obj->nr_maps++]; - new_cap = max(4ul, obj->maps_cap * 3 / 2); + new_cap = max((size_t)4, obj->maps_cap * 3 / 2); new_maps = realloc(obj->maps, new_cap * sizeof(*obj->maps)); if (!new_maps) { pr_warning("alloc maps for object failed\n");
It fixes build error for 32bit caused by type mismatch size_t/unsigned long. Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> --- tools/lib/bpf/libbpf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)