[Intel-wired-lan] [PATCH net 4/5] broadcom: fix supported flag check in periodic output function

[Simon Horman]

On Mon, Mar 10, 2025 at 03:16:39PM -0700, Jacob Keller wrote:
> In bcm_ptp_perout_locked, the driver rejects requests which have
> PTP_PEROUT_PHASE set. This appears to be an attempt to reject any
> unsupported flags. Unfortunately, this only checks one flag, but does not
> protect against PTP_PEROUT_ONE_SHOT, or any future flags which may be
> added.
> 
> Fix the check to ensure that no flag other than the supported
> PTP_PEROUT_DUTY_CYCLE is set.
> 
> Fixes: 7bfe91efd525 ("net: phy: Add support for 1PPS out and external timestamps")
> Signed-off-by: Jacob Keller <jacob.e.keller at intel.com>

Reviewed-by: Simon Horman <horms at kernel.org>