linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Wang Hai <wanghai38@huawei.com>
To: <davem@davemloft.net>, <kuba@kernel.org>, <ast@kernel.org>,
	<daniel@iogearbox.net>, <hawk@kernel.org>,
	<john.fastabend@gmail.com>, <andrii@kernel.org>, <kafai@fb.com>,
	<songliubraving@fb.com>, <yhs@fb.com>, <kpsingh@kernel.org>
Cc: <bpf@vger.kernel.org>, <netdev@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Subject: [PATCH bpf] samples/bpf: Fix the error return code of xdp_redirect's main()
Date: Wed, 16 Jun 2021 12:25:34 +0800	[thread overview]
Message-ID: <20210616042534.315097-1-wanghai38@huawei.com> (raw)

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

If bpf_map_update_elem() failed, main() should return a negative error.

Fixes: 832622e6bd18 ("xdp: sample program for new bpf_redirect helper")
Signed-off-by: Wang Hai <wanghai38@huawei.com>
---
 samples/bpf/xdp_redirect_user.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/samples/bpf/xdp_redirect_user.c b/samples/bpf/xdp_redirect_user.c
index 41d705c3a1f7..c903f1ccc15e 100644
--- a/samples/bpf/xdp_redirect_user.c
+++ b/samples/bpf/xdp_redirect_user.c
@@ -213,5 +213,5 @@ int main(int argc, char **argv)
 	poll_stats(2, ifindex_out);
 
 out:
-	return 0;
+	return ret;
 }
-- 
2.17.1


             reply	other threads:[~2021-06-16  4:26 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-16  4:25 Wang Hai [this message]
2021-06-18 18:20 ` [PATCH bpf] samples/bpf: Fix the error return code of xdp_redirect's main() patchwork-bot+netdevbpf
2021-07-02 10:29 ` Jesper Dangaard Brouer
2021-07-05  7:45   ` wanghai (M)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210616042534.315097-1-wanghai38@huawei.com \
    --to=wanghai38@huawei.com \
    --cc=andrii@kernel.org \
    --cc=ast@kernel.org \
    --cc=bpf@vger.kernel.org \
    --cc=daniel@iogearbox.net \
    --cc=davem@davemloft.net \
    --cc=hawk@kernel.org \
    --cc=john.fastabend@gmail.com \
    --cc=kafai@fb.com \
    --cc=kpsingh@kernel.org \
    --cc=kuba@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=songliubraving@fb.com \
    --cc=yhs@fb.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).