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| author | Raghuram Subramani <raghus2247@gmail.com> | 2024-10-13 13:36:36 +0530 |
|---|---|---|
| committer | Raghuram Subramani <raghus2247@gmail.com> | 2024-10-13 13:36:36 +0530 |
| commit | 6a21d8496b038d1e71fd6a9bd8a95880135665d9 (patch) | |
| tree | 8f96e9273400c0eb8794f92aef733bb5fe52b658 /net/core/dev.c | |
| parent | b73f506bc0ae7119f5f629b222596a27d7b2e99b (diff) | |
| parent | 17d850f5a5bc1318b67a974b16d32a2dd3bab5cf (diff) | |
Merge remote-tracking branch 'msm8998/lineage-20'master
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 3d26340ef52b..79f7b6fe9ce1 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -95,6 +95,7 @@ #include <linux/ethtool.h> #include <linux/notifier.h> #include <linux/skbuff.h> +#include <linux/bpf.h> #include <net/net_namespace.h> #include <net/sock.h> #include <linux/rtnetlink.h> @@ -5819,7 +5820,7 @@ EXPORT_SYMBOL(netdev_lower_dev_get_private); int dev_get_nest_level(struct net_device *dev, - bool (*type_check)(struct net_device *dev)) + bool (*type_check)(const struct net_device *dev)) { struct net_device *lower = NULL; struct list_head *iter; @@ -6327,6 +6328,38 @@ int dev_change_proto_down(struct net_device *dev, bool proto_down) EXPORT_SYMBOL(dev_change_proto_down); /** + * dev_change_xdp_fd - set or clear a bpf program for a device rx path + * @dev: device + * @fd: new program fd or negative value to clear + * + * Set or clear a bpf program for a device + */ +int dev_change_xdp_fd(struct net_device *dev, int fd) +{ + const struct net_device_ops *ops = dev->netdev_ops; + struct bpf_prog *prog = NULL; + struct netdev_xdp xdp = {}; + int err; + + if (!ops->ndo_xdp) + return -EOPNOTSUPP; + if (fd >= 0) { + prog = bpf_prog_get_type(fd, BPF_PROG_TYPE_XDP); + if (IS_ERR(prog)) + return PTR_ERR(prog); + } + + xdp.command = XDP_SETUP_PROG; + xdp.prog = prog; + err = ops->ndo_xdp(dev, &xdp); + if (err < 0 && prog) + bpf_prog_put(prog); + + return err; +} +EXPORT_SYMBOL(dev_change_xdp_fd); + +/** * dev_new_index - allocate an ifindex * @net: the applicable net namespace * |