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authorMoritz Fischer <mdf@kernel.org>2019-09-03 19:35:07 -0700
committerMoritz Fischer <mdf@kernel.org>2019-09-03 19:35:07 -0700
commitaf9ca4b0bd0502bb134f18d394a613be371d2352 (patch)
tree37b1159d4456e223981dddde4795f2061c83d14c /net/core/dev.c
parentcbb4a74478e9eef0f8ef437e95ef7645008988f7 (diff)
parent99097a214b0c15f7595ac8f2788662f3941c1992 (diff)
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Merge branch 'char-misc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into fpga-dfl-for-5.4
Diffstat (limited to 'net/core/dev.c')
-rw-r--r--net/core/dev.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index fc676b2610e3..0891f499c1bb 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4374,12 +4374,17 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb,
act = bpf_prog_run_xdp(xdp_prog, xdp);
+ /* check if bpf_xdp_adjust_head was used */
off = xdp->data - orig_data;
- if (off > 0)
- __skb_pull(skb, off);
- else if (off < 0)
- __skb_push(skb, -off);
- skb->mac_header += off;
+ if (off) {
+ if (off > 0)
+ __skb_pull(skb, off);
+ else if (off < 0)
+ __skb_push(skb, -off);
+
+ skb->mac_header += off;
+ skb_reset_network_header(skb);
+ }
/* check if bpf_xdp_adjust_tail was used. it can only "shrink"
* pckt.
@@ -9701,6 +9706,8 @@ static void __net_exit default_device_exit(struct net *net)
/* Push remaining network devices to init_net */
snprintf(fb_name, IFNAMSIZ, "dev%d", dev->ifindex);
+ if (__dev_get_by_name(&init_net, fb_name))
+ snprintf(fb_name, IFNAMSIZ, "dev%%d");
err = dev_change_net_namespace(dev, &init_net, fb_name);
if (err) {
pr_emerg("%s: failed to move %s to init_net: %d\n",