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

[Magnus Karlsson]

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.karls...@intel.com>
Reported-by: Yonghong Song <y...@fb.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