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| author | Takashi Iwai <[email protected]> | 2022-12-22 08:11:48 +0000 |
|---|---|---|
| committer | Takashi Iwai <[email protected]> | 2022-12-22 08:11:48 +0000 |
| commit | 2d78eb0342dd2c9c5cde9ae9ada1d33f189a858b (patch) | |
| tree | f711bc9cab45f4963e4883ef15ff4c54a6cbc12e /net/dsa/port.c | |
| parent | Merge tag 'asoc-fix-v6.1-rc7' of https://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
| parent | ALSA: hda/hdmi: fix stream-id config keep-alive for rt suspend (diff) | |
| download | kernel-2d78eb0342dd2c9c5cde9ae9ada1d33f189a858b.tar.gz kernel-2d78eb0342dd2c9c5cde9ae9ada1d33f189a858b.zip | |
Merge branch 'for-next' into for-linus
Diffstat (limited to 'net/dsa/port.c')
| -rw-r--r-- | net/dsa/port.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/dsa/port.c b/net/dsa/port.c index 208168276995..750fe68d9b2a 100644 --- a/net/dsa/port.c +++ b/net/dsa/port.c @@ -110,6 +110,22 @@ static bool dsa_port_can_configure_learning(struct dsa_port *dp) return !err; } +bool dsa_port_supports_hwtstamp(struct dsa_port *dp, struct ifreq *ifr) +{ + struct dsa_switch *ds = dp->ds; + int err; + + if (!ds->ops->port_hwtstamp_get || !ds->ops->port_hwtstamp_set) + return false; + + /* "See through" shim implementations of the "get" method. + * This will clobber the ifreq structure, but we will either return an + * error, or the master will overwrite it with proper values. + */ + err = ds->ops->port_hwtstamp_get(ds, dp->index, ifr); + return err != -EOPNOTSUPP; +} + int dsa_port_set_state(struct dsa_port *dp, u8 state, bool do_fast_age) { struct dsa_switch *ds = dp->ds; |