Re: [PATCH net] net: fec: avoid lock evasion when reading pps_enable

[Simon Horman]

On Mon, May 13, 2024 at 09:51:26AM +0800, Wei Fang wrote:
> The assignment of pps_enable is protected by tmreg_lock, but the read
> operation of pps_enable is not. So the Coverity tool reports a lock
> evasion warning which may cause data race to occur when running in a
> multithread environment. Although this issue is almost impossible to
> occur, we'd better fix it, at least it seems more logically reasonable,
> and it also prevents Coverity from continuing to issue warnings.
> 
> Fixes: 278d24047891 ("net: fec: ptp: Enable PPS output based on ptp clock")
> Signed-off-by: Wei Fang <wei.fang@xxxxxxx>

Reviewed-by: Simon Horman <horms@xxxxxxxxxx>