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authorHangbin Liu <liuhangbin@gmail.com>2021-12-10 11:59:58 +0300
committerDavid S. Miller <davem@davemloft.net>2021-12-14 15:28:24 +0300
commit9c9211a3fc7aa41b2952765b62000443b3bb6f23 (patch)
tree1067f854727ae10bdf051d92072d9cb512906242 /drivers/net/ethernet/intel/e1000e
parenta3c62a042237d1adeb0290dcb768e17edd6dcd25 (diff)
downloadlinux-9c9211a3fc7aa41b2952765b62000443b3bb6f23.tar.xz
net_tstamp: add new flag HWTSTAMP_FLAG_BONDED_PHC_INDEX
Since commit 94dd016ae538 ("bond: pass get_ts_info and SIOC[SG]HWTSTAMP ioctl to active device") the user could get bond active interface's PHC index directly. But when there is a failover, the bond active interface will change, thus the PHC index is also changed. This may break the user's program if they did not update the PHC timely. This patch adds a new hwtstamp_config flag HWTSTAMP_FLAG_BONDED_PHC_INDEX. When the user wants to get the bond active interface's PHC, they need to add this flag and be aware the PHC index may be changed. With the new flag. All flag checks in current drivers are removed. Only the checking in net_hwtstamp_validate() is kept. Suggested-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e')
-rw-r--r--drivers/net/ethernet/intel/e1000e/netdev.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 44e2dc8328a2..635a95927e93 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -3614,10 +3614,6 @@ static int e1000e_config_hwtstamp(struct e1000_adapter *adapter,
if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
return -EINVAL;
- /* flags reserved for future extensions - must be zero */
- if (config->flags)
- return -EINVAL;
-
switch (config->tx_type) {
case HWTSTAMP_TX_OFF:
tsync_tx_ctl = 0;