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Diffstat (limited to 'tools/lib/bpf/xsk.c')
-rw-r--r--tools/lib/bpf/xsk.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/tools/lib/bpf/xsk.c b/tools/lib/bpf/xsk.c
index 5007b5d4fd2c..680e63066cf3 100644
--- a/tools/lib/bpf/xsk.c
+++ b/tools/lib/bpf/xsk.c
@@ -317,17 +317,16 @@ static int xsk_load_xdp_prog(struct xsk_socket *xsk)
static int xsk_get_max_queues(struct xsk_socket *xsk)
{
- struct ethtool_channels channels;
- struct ifreq ifr;
+ struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };
+ struct ifreq ifr = {};
int fd, err, ret;
fd = socket(AF_INET, SOCK_DGRAM, 0);
if (fd < 0)
return -errno;
- channels.cmd = ETHTOOL_GCHANNELS;
ifr.ifr_data = (void *)&channels;
- strncpy(ifr.ifr_name, xsk->ifname, IFNAMSIZ - 1);
+ memcpy(ifr.ifr_name, xsk->ifname, IFNAMSIZ - 1);
ifr.ifr_name[IFNAMSIZ - 1] = '\0';
err = ioctl(fd, SIOCETHTOOL, &ifr);
if (err && errno != EOPNOTSUPP) {
@@ -335,7 +334,7 @@ static int xsk_get_max_queues(struct xsk_socket *xsk)
goto out;
}
- if (channels.max_combined == 0 || errno == EOPNOTSUPP)
+ if (err || channels.max_combined == 0)
/* If the device says it has no channels, then all traffic
* is sent to a single stream, so max queues = 1.
*/
@@ -517,7 +516,7 @@ int xsk_socket__create(struct xsk_socket **xsk_ptr, const char *ifname,
err = -errno;
goto out_socket;
}
- strncpy(xsk->ifname, ifname, IFNAMSIZ - 1);
+ memcpy(xsk->ifname, ifname, IFNAMSIZ - 1);
xsk->ifname[IFNAMSIZ - 1] = '\0';
err = xsk_set_xdp_socket_config(&xsk->config, usr_config);