Eric Lee / smarc-fsl-linux-kernel

01 Nov, 2017

1 commit

  • f1fd20c36   MAINTAINERS: Update Yotam's E-mail ... Browse Code »

    For the time being I will be available in my private mail. Update both the
    MAINTAINERS file and the individual modules MODULE_AUTHOR directive with
    the new address.

    Signed-off-by: Yotam Gigi
    Signed-off-by: Yuval Mintz
    Signed-off-by: David S. Miller

    Yotam Gigi
     

16 Jun, 2017

1 commit

  • 4df864c1d   networking: make skb_put & friends return void pointers ... Browse Code »

    It seems like a historic accident that these return unsigned char *,
    and in many places that means casts are required, more often than not.

    Make these functions (skb_put, __skb_put and pskb_put) return void *
    and remove all the casts across the tree, adding a (u8 *) cast only
    where the unsigned char pointer was used directly, all done with the
    following spatch:

    @@
    expression SKB, LEN;
    typedef u8;
    identifier fn = { skb_put, __skb_put };
    @@
    - *(fn(SKB, LEN))
    + *(u8 *)fn(SKB, LEN)

    @@
    expression E, SKB, LEN;
    identifier fn = { skb_put, __skb_put };
    type T;
    @@
    - E = ((T *)(fn(SKB, LEN)))
    + E = fn(SKB, LEN)

    which actually doesn't cover pskb_put since there are only three
    users overall.

    A handful of stragglers were converted manually, notably a macro in
    drivers/isdn/i4l/isdn_bsdcomp.c and, oddly enough, one of the many
    instances in net/bluetooth/hci_sock.c. In the former file, I also
    had to fix one whitespace problem spatch introduced.

    Signed-off-by: Johannes Berg
    Signed-off-by: David S. Miller

    Johannes Berg
     

25 Jan, 2017

1 commit

  • 6ae0a6286   net: Introduce psample, a new genetlink channel for packet sampling ... Browse Code »

    Add a general way for kernel modules to sample packets, without being tied
    to any specific subsystem. This netlink channel can be used by tc,
    iptables, etc. and allow to standardize packet sampling in the kernel.

    For every sampled packet, the psample module adds the following metadata
    fields:

    PSAMPLE_ATTR_IIFINDEX - the packets input ifindex, if applicable

    PSAMPLE_ATTR_OIFINDEX - the packet output ifindex, if applicable

    PSAMPLE_ATTR_ORIGSIZE - the packet's original size, in case it has been
    truncated during sampling

    PSAMPLE_ATTR_SAMPLE_GROUP - the packet's sample group, which is set by the
    user who initiated the sampling. This field allows the user to
    differentiate between several samplers working simultaneously and
    filter packets relevant to him

    PSAMPLE_ATTR_GROUP_SEQ - sequence counter of last sent packet. The
    sequence is kept for each group

    PSAMPLE_ATTR_SAMPLE_RATE - the sampling rate used for sampling the packets

    PSAMPLE_ATTR_DATA - the actual packet bits

    The sampled packets are sent to the PSAMPLE_NL_MCGRP_SAMPLE multicast
    group. In addition, add the GET_GROUPS netlink command which allows the
    user to see the current sample groups, their refcount and sequence number.
    This command currently supports only netlink dump mode.

    Signed-off-by: Yotam Gigi
    Signed-off-by: Jiri Pirko
    Reviewed-by: Jamal Hadi Salim
    Reviewed-by: Simon Horman
    Signed-off-by: David S. Miller

    Yotam Gigi