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igb: check timestamp validity

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[ Upstream commit f0a03a026857d6c7766eb7d5835edbf5523ca15c ]

Add a couple of checks to make sure timestamping is on and that the
timestamp value from DMA is valid. This avoids any functional issues
that could come from a misinterpreted time stamp.

One of the functions changed doesn't need a return value added because
there was no value in checking from the calling locations.

While here, fix a couple of reverse christmas tree issues next to
the code being changed.

Fixes: f56e7bba22 ("igb: Pull timestamp from fragment before adding it to skb")
Fixes: 9cbc948b5a ("igb: add XDP support")
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jesse Brandeburg
2021-03-03 12:51:03 -08:00
committed by Greg Kroah-Hartman
parent 421e0d7310
commit 2330d46db0
3 changed files with 32 additions and 14 deletions
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4
drivers/net/ethernet/intel/igb/igb.h
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@@ -748,8 +748,8 @@ void igb_ptp_suspend(struct igb_adapter *adapter);
void igb_ptp_rx_hang(struct igb_adapter *adapter);
void igb_ptp_tx_hang(struct igb_adapter *adapter);
void igb_ptp_rx_rgtstamp(struct igb_q_vector *q_vector, struct sk_buff *skb);
void igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, void *va,
struct sk_buff *skb);
int igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, void *va,
struct sk_buff *skb);
int igb_ptp_set_ts_config(struct net_device *netdev, struct ifreq *ifr);
int igb_ptp_get_ts_config(struct net_device *netdev, struct ifreq *ifr);
void igb_set_flag_queue_pairs(struct igb_adapter *, const u32);