netdev - [PATCH net v3 0/2] ibmvnic: Bug fixes for queue descriptor processing

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Message-Id: <1606837931-22676-1-git-send-email-tlfalcon@linux.ibm.com>
Date:   Tue,  1 Dec 2020 09:52:09 -0600
From:   Thomas Falcon <tlfalcon@...ux.ibm.com>
To:     kuba@...nel.org
Cc:     mpe@...erman.id.au, netdev@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, cforno12@...ux.ibm.com,
        ljp@...ux.vnet.ibm.com, ricklind@...ux.ibm.com,
        dnbanerg@...ibm.com, drt@...ux.vnet.ibm.com,
        brking@...ux.vnet.ibm.com, sukadev@...ux.vnet.ibm.com,
        tlfalcon@...ux.ibm.com
Subject: [PATCH net v3 0/2] ibmvnic: Bug fixes for queue descriptor processing

This series resolves a few issues in the ibmvnic driver's
RX buffer and TX completion processing. The first patch
includes memory barriers to synchronize queue descriptor
reads. The second patch fixes a memory leak that could
occur if the device returns a TX completion with an error
code in the descriptor, in which case the respective socket
buffer and other relevant data structures may not be freed
or updated properly.

v3: Correct length of Fixes tags, requested by Jakub Kicinski

v2: Provide more detailed comments explaining specifically what
    reads are being ordered, suggested by Michael Ellerman

Thomas Falcon (2):
  ibmvnic: Ensure that SCRQ entry reads are correctly ordered
  ibmvnic: Fix TX completion error handling

 drivers/net/ethernet/ibm/ibmvnic.c | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

-- 
1.8.3.1