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Date:   Fri, 30 Oct 2020 17:37:26 -0700
From:   Xie He <>
To:     Jakub Kicinski <>,
        "David S. Miller" <>,,,
        Willem de Bruijn <>,
        Krzysztof Halasa <>
Cc:     Xie He <>
Subject: [PATCH net-next v5 0/5] net: hdlc_fr: Improve fr_rx and add support for any Ethertype

The main purpose of this series is the last patch. The previous 4 patches
are just code clean-ups so that the last patch will not make the code too
messy. The patches must be applied in sequence.

The receiving code of this driver doesn't support arbitrary Ethertype
values. It only recognizes a few known Ethertypes when receiving and drops
skbs with other Ethertypes.

However, the standard document RFC 2427 allows Frame Relay to support any
Ethertype values. This series adds support for this.

Change from v4:
Drop the change related to stats.rx_dropped from the 1st patch.
Switch the 3rd and 4th patch.
Improve the commit message of the 4th patch by stating why only a 2-byte
address field is accepted.

Change from v3:
Split the last patch into 2 patches.
Improve the commit message of the 1st patch to explicitly state that the
stats.rx_dropped count is also increased after "goto rx_error".

Change from v2:
Small fix to the commit messages.

Change from v1:
Small fix to the commit messages.

Xie He (5):
  net: hdlc_fr: Simpify fr_rx by using "goto rx_drop" to drop frames
  net: hdlc_fr: Change the use of "dev" in fr_rx to make the code
  net: hdlc_fr: Do skb_reset_mac_header for skbs received on normal PVC
  net: hdlc_fr: Improve the initial checks when we receive an skb
  net: hdlc_fr: Add support for any Ethertype

 drivers/net/wan/hdlc_fr.c | 118 +++++++++++++++++++++++---------------
 1 file changed, 72 insertions(+), 46 deletions(-)


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