On Mon, Feb 12, 2018 at 06:31:24PM +0800, Xin Long wrote:
> Remove the 'if (chunk)' check in sctp_renege_events for idata process,
> as all renege commands are generated in sctp_eat_data and it can't be
> NULL.
>
> The same thing we already did for common data in sctp_ulpq_renege.
>
> Fixes: 94014e8d871a ("sctp: implement renege_events for sctp_stream_interleave")
> Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@xxxxxxxxx>
For future reference, I don't think the Fixes tag is needed here, as
it was working and without performance impact.
> ---
> net/sctp/stream_interleave.c | 8 ++------
> 1 file changed, 2 insertions(+), 6 deletions(-)
>
> diff --git a/net/sctp/stream_interleave.c b/net/sctp/stream_interleave.c
> index c19fd42..65ac03b 100644
> --- a/net/sctp/stream_interleave.c
> +++ b/net/sctp/stream_interleave.c
> @@ -955,12 +955,8 @@ static void sctp_renege_events(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk,
> __u32 freed = 0;
> __u16 needed;
>
> - if (chunk) {
> - needed = ntohs(chunk->chunk_hdr->length);
> - needed -= sizeof(struct sctp_idata_chunk);
> - } else {
> - needed = SCTP_DEFAULT_MAXWINDOW;
> - }
> + needed = ntohs(chunk->chunk_hdr->length) -
> + sizeof(struct sctp_idata_chunk);
>
> if (skb_queue_empty(&asoc->base.sk->sk_receive_queue)) {
> freed = sctp_ulpq_renege_list(ulpq, &ulpq->lobby, needed);
> --
> 2.1.0
>
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