Searched hist:b4c9784c (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/drivers/net/ethernet/stmicro/stmmac/ |
| H A D | stmmac_main.c | b4c9784c Mon Feb 19 11:11:11 CST 2018 Niklas Cassel <niklas.cassel@axis.com> net: stmmac: WARN if tx_skbuff entries are reused before cleared
The current code assumes that a tx_skbuff entry has been cleared
by stmmac_tx_clean() before stmmac_xmit()/stmmac_tso_xmit()
assigns a new skb to that entry. However, since we never check
the current value before overwriting it, it is theoretically
possible that a non-NULL value is overwritten.
Add WARN_ONs to verify that each entry in tx_skbuff is NULL
before it is assigned a new value.
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
b4c9784c Mon Feb 19 11:11:11 CST 2018 Niklas Cassel <niklas.cassel@axis.com> net: stmmac: WARN if tx_skbuff entries are reused before cleared
The current code assumes that a tx_skbuff entry has been cleared
by stmmac_tx_clean() before stmmac_xmit()/stmmac_tso_xmit()
assigns a new skb to that entry. However, since we never check
the current value before overwriting it, it is theoretically
possible that a non-NULL value is overwritten.
Add WARN_ONs to verify that each entry in tx_skbuff is NULL
before it is assigned a new value.
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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