lkml.org 
[lkml]   [2017]   [Dec]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 3/4] libbpf: break loop earlier
On Wed, Dec 27, 2017 at 07:02:28PM +0100, Eric Leblond wrote:
> Get out of the loop when we have a match.
>
> Signed-off-by: Eric Leblond <eric@regit.org>
> ---
> tools/lib/bpf/libbpf.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
> index 5fe8aaa2123e..d263748aa341 100644
> --- a/tools/lib/bpf/libbpf.c
> +++ b/tools/lib/bpf/libbpf.c
> @@ -412,6 +412,7 @@ bpf_object__init_prog_names(struct bpf_object *obj)
> prog->section_name);
> return -LIBBPF_ERRNO__LIBELF;
> }
> + break;

why this is needed?
The top of the loop is:
for (si = 0; si < symbols->d_size / sizeof(GElf_Sym) && !name;

so as soon as name is found the loop will exit.
I agree that the loop structure is non-standard is confusing,
but adding break here will make it even more so.
If 'break' is added then '&& !name' should be removed.

\
 
 \ /
  Last update: 2017-12-27 20:01    [W:0.073 / U:0.612 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site