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| author |   Ioana Radulescu <ruxandra.radulescu@nxp.com> | 2017-10-11 08:29:45 -0500 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-18 16:45:18 +0200 |
| commit | b63baf7137688ff7989829137dab8fd548fa9399 (patch) | |
| tree | 643e3d0018b4eaedadfa3fab117c811ecd8bd8fa /drivers/staging/fsl-dpaa2/ethernet | |
| parent | staging: fsl-dpaa2/eth: Account for Rx FD buffers on error path (diff) | |
| download | linux-dev-b63baf7137688ff7989829137dab8fd548fa9399.tar.xz linux-dev-b63baf7137688ff7989829137dab8fd548fa9399.zip | |
staging: fsl-dpaa2/eth: Check SGT final bit is present
For scatter-gather ingress frames, we expect to receive
a list of fragments from the hardware, last of which is
marked with a "final" bit.
Add a check to make sure the Rx frame has this bit set
correctly; there's not much we can do in case of a
malformed frame, but at least issue a warning.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/fsl-dpaa2/ethernet')
| -rw-r--r-- | drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c index e9fe1c9da347..6f009d1e3a84 100644 --- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c +++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c @@ -213,6 +213,8 @@ static struct sk_buff *build_frag_skb(struct dpaa2_eth_priv *priv, break; } + WARN_ONCE(i == DPAA2_ETH_MAX_SG_ENTRIES, "Final bit not set in SGT"); + /* Count all data buffers + SG table buffer */ ch->buf_count -= i + 2; |