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

Thomas Falcon tlfalcon at linux.ibm.com
Wed Dec 2 02:52:09 AEDT 2020


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



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