Commit c50b7c47 authored Dec 21, 2017 by David S. Miller

Merge branch 'net-zerocopy-fixes'



Saeed Mahameed says:

===================
Mellanox, mlx5 fixes 2017-12-19

The follwoing series includes some fixes for mlx5 core and etherent
driver.

Please pull and let me know if there is any problem.

This series doesn't introduce any conflict with the ongoing mlx5 for-next
submission.

For -stable:

kernels >= v4.7.y
    ("net/mlx5e: Fix possible deadlock of VXLAN lock")
    ("net/mlx5e: Add refcount to VXLAN structure")
    ("net/mlx5e: Prevent possible races in VXLAN control flow")
    ("net/mlx5e: Fix features check of IPv6 traffic")

kernels >= v4.9.y
    ("net/mlx5: Fix error flow in CREATE_QP command")
    ("net/mlx5: Fix rate limit packet pacing naming and struct")

kernels >= v4.13.y
    ("net/mlx5: FPGA, return -EINVAL if size is zero")

kernels >= v4.14.y
    ("Revert "mlx5: move affinity hints assignments to generic code")

All above patches apply and compile with no issues on corresponding -stable.
===================

Signed-off-by: David S. Miller <davem@davemloft.net>

parents 513674b5 b90ddd56

net/core/skbuff.c

+4 −3

Original line number	Diff line number	Diff line
		@@ -1178,7 +1178,7 @@ int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask)
		u32 d_off;

		if (!num_frags)
		return 0;
		goto release;

		if (skb_shared(skb) \|\| skb_unclone(skb, gfp_mask))
		return -EINVAL;
		@@ -1238,6 +1238,7 @@ int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask)
		__skb_fill_page_desc(skb, new_frags - 1, head, 0, d_off);
		skb_shinfo(skb)->nr_frags = new_frags;

		release:
		skb_zcopy_clear(skb, false);
		return 0;
		}
		@@ -3654,8 +3655,6 @@ normal:

		skb_shinfo(nskb)->tx_flags \|= skb_shinfo(head_skb)->tx_flags &
		SKBTX_SHARED_FRAG;
		if (skb_zerocopy_clone(nskb, head_skb, GFP_ATOMIC))
		goto err;

		while (pos < offset + len) {
		if (i >= nfrags) {
		@@ -3681,6 +3680,8 @@ normal:

		if (unlikely(skb_orphan_frags(frag_skb, GFP_ATOMIC)))
		goto err;
		if (skb_zerocopy_clone(nskb, frag_skb, GFP_ATOMIC))
		goto err;

		nskb_frag = frag;
		__skb_frag_ref(nskb_frag);

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