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| /openbmc/linux/drivers/net/ethernet/broadcom/bnx2x/ |
| H A D | bnx2x_cmn.c | diff ea811b795df24644a8eb760b493c43fba4450677 Mon Jul 15 16:41:50 CDT 2019 Brian King <brking@linux.vnet.ibm.com> bnx2x: Prevent load reordering in tx completion processing
This patch fixes an issue seen on Power systems with bnx2x which results
in the skb is NULL WARN_ON in bnx2x_free_tx_pkt firing due to the skb
pointer getting loaded in bnx2x_free_tx_pkt prior to the hw_cons
load in bnx2x_tx_int. Adding a read memory barrier resolves the issue.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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