diff options
| author |   Jacob Keller <jacob.e.keller@intel.com> | 2025-03-12 15:15:54 -0700 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2025-03-20 08:50:03 +0100 |
| commit | 8dcfc910a81d8b53f59f8b23211e81f2a91f84f9 (patch) | |
| tree | 089f3f3c79486feb09d3cf300c8794634217ae34 | |
| parent | broadcom: fix supported flag check in periodic output function (diff) | |
| download | wireguard-linux-8dcfc910a81d8b53f59f8b23211e81f2a91f84f9.tar.xz wireguard-linux-8dcfc910a81d8b53f59f8b23211e81f2a91f84f9.zip | |
ptp: ocp: reject unsupported periodic output flags
The ptp_ocp_signal_from_perout() function supports PTP_PEROUT_DUTY_CYCLE
and PTP_PEROUT_PHASE. It does not support PTP_PEROUT_ONE_SHOT, but does not
reject a request with such an unsupported flag.
Add the appropriate check to ensure that unsupported requests are rejected
both for PTP_PEROUT_ONE_SHOT as well as any future flags.
Fixes: 1aa66a3a135a ("ptp: ocp: Program the signal generators via PTP_CLK_REQ_PEROUT")
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250312-jk-net-fixes-supported-extts-flags-v2-5-ea930ba82459@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
| -rw-r--r-- | drivers/ptp/ptp_ocp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c index 34c616bd0a02..b25635c5c745 100644 --- a/drivers/ptp/ptp_ocp.c +++ b/drivers/ptp/ptp_ocp.c @@ -2090,6 +2090,10 @@ ptp_ocp_signal_from_perout(struct ptp_ocp *bp, int gen, { struct ptp_ocp_signal s = { }; + if (req->flags & ~(PTP_PEROUT_DUTY_CYCLE | + PTP_PEROUT_PHASE)) + return -EOPNOTSUPP; + s.polarity = bp->signal[gen].polarity; s.period = ktime_set(req->period.sec, req->period.nsec); if (!s.period) |