On Thu, Mar 04, 2021 at 01:20:49PM -0600, Bob Pearson wrote:
> From: Bob Pearson <rpearsonhpe@xxxxxxxxx>
>
> Three errors occurred in the fix referenced below.
>
> 1) rxe_rcv_mcast_pkt() dropped a reference to ib_device when
> no error occurred causing an underflow on the reference counter.
> This code is cleaned up to be clearer and easier to read.
>
> 2) Extending the reference taken by rxe_get_dev_from_net() in
> rxe_udp_encap_recv() until each skb is freed was not matched by
> a reference in the loopback path resulting in underflows.
>
> 3) In rxe_comp.c in rxe_completer() the function free_pkt() did
> not clear skb which triggered a warning at done: and could possibly
> at exit: . The WARN_ONCE() calls are not actually needed.
> The call to free_pkt() is moved to the end to clearly show that
> all skbs are freed.
>
> This patch fixes these errors.
>
> Fixes: 899aba891cab ("RDMA/rxe: Fix FIXME in rxe_udp_encap_recv()")
> Signed-off-by: Bob Pearson <rpearsonhpe@xxxxxxxxx>
> Version 3:
> V2 of this patch had spelling errors and style issues which are
> fixed in this version.
>
> Version 2:
> v1 of this patch incorrectly added a WARN_ON_ONCE in rxe_completer
> where it could be triggered for normal traffic. This version
> replaced that with a pr_warn located correctly.
>
> v1 of this patch placed a call to kfree_skb in an if statement
> that could trigger style warnings. This version cleans that up.
>
> drivers/infiniband/sw/rxe/rxe_comp.c | 55 +++++++++++---------------
> drivers/infiniband/sw/rxe/rxe_net.c | 10 ++++-
> drivers/infiniband/sw/rxe/rxe_recv.c | 59 +++++++++++++++++-----------
> 3 files changed, 67 insertions(+), 57 deletions(-)
I split this into three patches for-rc as is required by Linus.
It looks reasonable to me and the reorganizing make sense
Thanks,
Jason
