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igb/igc: use ktime accessors for skb->tstamp 

When implementing launch time support in the igb and igc drivers, the
skb->tstamp value is assumed to be a s64, but it's declared as a ktime_t
value.

Although ktime_t is typedef'd to s64 it wasn't always, and the kernel
provides accessors for ktime_t values.

Use the ktime_to_timespec64 and ktime_set accessors instead of directly
assuming that the variable is always an s64.

This improves portability if the code is ever moved to another kernel
version, or if the definition of ktime_t ever changes again in the
future.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jacob Keller 2019-11-06 09:18:23 -08:00 committed by Jeff Kirsher
parent 4c9da6f2b8
commit 6acab13bdf
3 changed files with 6 additions and 4 deletions
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2
drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h
View File

@ -20,6 +20,8 @@
/* API version 1.7 implements additional link and PHY-specific APIs */
#define I40E_MINOR_VER_GET_LINK_INFO_XL710 0x0007
/* API version 1.9 for X722 implements additional link and PHY-specific APIs */
#define I40E_MINOR_VER_GET_LINK_INFO_X722 0x0009
/* API version 1.6 for X722 devices adds ability to stop FW LLDP agent */
#define I40E_MINOR_VER_FW_LLDP_STOPPABLE_X722 0x0006

4
drivers/net/ethernet/intel/igb/igb_main.c
View File

@ -5675,8 +5675,8 @@ static void igb_tx_ctxtdesc(struct igb_ring *tx_ring,
* should have been handled by the upper layers.
*/
if (tx_ring->launchtime_enable) {
ts = ns_to_timespec64(first->skb->tstamp);
first->skb->tstamp = 0;
ts = ktime_to_timespec64(first->skb->tstamp);
first->skb->tstamp = ktime_set(0, 0);
context_desc->seqnum_seed = cpu_to_le32(ts.tv_nsec / 32);
} else {
context_desc->seqnum_seed = 0;

4
drivers/net/ethernet/intel/igc/igc_main.c
View File

@ -824,8 +824,8 @@ static void igc_tx_ctxtdesc(struct igc_ring *tx_ring,
* should have been handled by the upper layers.
*/
if (tx_ring->launchtime_enable) {
ts = ns_to_timespec64(first->skb->tstamp);
first->skb->tstamp = 0;
ts = ktime_to_timespec64(first->skb->tstamp);
first->skb->tstamp = ktime_set(0, 0);
context_desc->launch_time = cpu_to_le32(ts.tv_nsec / 32);
} else {
context_desc->launch_time = 0;