Re: [ndctl PATCH 1/2] cxl/list: emit decoder locked status

Richard Cheng <[email protected]>
Newsgroups dev.linux.lists.nvdimm,org.kernel.vger.linux-cxl
Message-ID <anVn1VThm2j9s7hZ@MWDK4CY14F>
On Fri, Jul 31, 2026 at 08:40:08AM +0800, Dave Jiang wrote:
> 
> 
> On 7/30/26 6:55 PM, Alison Schofield wrote:
> > A committed zero-sized HDM decoder reports size 0, so 'cxl list'
> > renders it identically to an ordinary unconfigured decoder ("state":
> > "disabled"). The locked attribute that distinguishes firmware-committed
> > decoders is not included in the JSON output.
> > 
> > The library already reads the decoder's locked attribute and exports
> > cxl_decoder_is_locked(); it was simply never emitted. Add a "locked"
> > field to the decoder JSON, following the emit-only-when-true idiom used
> > by the capability flags so existing output is unchanged for the common
> > unlocked case.
> > 
> > Signed-off-by: Alison Schofield <[email protected]>
> 
> Reviewed-by: Dave Jiang <[email protected]>
>

Thanks alot !

Reviewed-by: Richard Cheng <[email protected]>

Best regards,
Richard Cheng.
 
> > ---
> >  cxl/json.c | 6 ++++++
> >  1 file changed, 6 insertions(+)
> > 
> > diff --git a/cxl/json.c b/cxl/json.c
> > index a92548828582..2214f7027d91 100644
> > --- a/cxl/json.c
> > +++ b/cxl/json.c
> > @@ -870,6 +870,12 @@ struct json_object *util_cxl_decoder_to_json(struct cxl_decoder *decoder,
> >  			json_object_object_add(jdecoder, "state", jobj);
> >  	}
> >  
> > +	if (cxl_decoder_is_locked(decoder)) {
> > +		jobj = json_object_new_boolean(true);
> > +		if (jobj)
> > +			json_object_object_add(jdecoder, "locked", jobj);
> > +	}
> > +
> >  	if (cxl_port_is_endpoint(port)) {
> >  		enum cxl_decoder_mode mode = cxl_decoder_get_mode(decoder);
> >  
>
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