netdev - [PATCH bpf-next] libbpf: remove zc variable as it is not used

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Message-Id: <1565951171-14439-1-git-send-email-magnus.karlsson@intel.com>
Date:   Fri, 16 Aug 2019 12:26:11 +0200
From:   Magnus Karlsson <magnus.karlsson@...el.com>
To:     magnus.karlsson@...el.com, bjorn.topel@...el.com, ast@...nel.org,
        daniel@...earbox.net, netdev@...r.kernel.org
Cc:     bpf@...r.kernel.org, yhs@...com
Subject: [PATCH bpf-next] libbpf: remove zc variable as it is not used

The zc is not used in the xsk part of libbpf, so let us remove it. Not
good to have dead code lying around.

Signed-off-by: Magnus Karlsson <magnus.karlsson@...el.com>
Reported-by: Yonghong Song <yhs@...com>
---
 tools/lib/bpf/xsk.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/tools/lib/bpf/xsk.c b/tools/lib/bpf/xsk.c
index 680e630..9687da9 100644
--- a/tools/lib/bpf/xsk.c
+++ b/tools/lib/bpf/xsk.c
@@ -65,7 +65,6 @@ struct xsk_socket {
 	int xsks_map_fd;
 	__u32 queue_id;
 	char ifname[IFNAMSIZ];
-	bool zc;
 };
 
 struct xsk_nl_info {
@@ -608,8 +607,6 @@ int xsk_socket__create(struct xsk_socket **xsk_ptr, const char *ifname,
 		goto out_mmap_tx;
 	}
 
-	xsk->zc = opts.flags & XDP_OPTIONS_ZEROCOPY;
-
 	if (!(xsk->config.libbpf_flags & XSK_LIBBPF_FLAGS__INHIBIT_PROG_LOAD)) {
 		err = xsk_setup_xdp_prog(xsk);
 		if (err)
-- 
2.7.4