lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <Z4Y3OE8ubIWGiDhb@pluto>
Date: Tue, 14 Jan 2025 10:07:03 +0000
From: Cristian Marussi <cristian.marussi@....com>
To: Peng Fan <peng.fan@....com>
Cc: "Peng Fan (OSS)" <peng.fan@....nxp.com>,
	Cristian Marussi <cristian.marussi@....com>,
	Sudeep Holla <sudeep.holla@....com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Saravana Kannan <saravanak@...gle.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Aisheng Dong <aisheng.dong@....com>,
	Fabio Estevam <festevam@...il.com>, Shawn Guo <shawnguo@...nel.org>,
	Jacky Bai <ping.bai@....com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	"arm-scmi@...r.kernel.org" <arm-scmi@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"imx@...ts.linux.dev" <imx@...ts.linux.dev>
Subject: Re: [PATCH 2/4] firmware: arm_scmi: bus: Bypass setting fwnode for
 pinctrl

On Tue, Jan 14, 2025 at 08:31:03AM +0000, Peng Fan wrote:
> Hi Cristian, Sudeep
> 
> > Subject: Re: [PATCH 2/4] firmware: arm_scmi: bus: Bypass setting
> > fwnode for pinctrl
> > 
> [...]
> 
> > >> fix here) than this change.
> > >
> > >...or indeed this is another possibility
> > 
> > I am doing a patch as below, how to do you think?
> 
> Do you have any comments on below ideas?
> 
> I am thinking to send out new patchset based on
> below ideas in this week.
> 

Hi Peng,

sorry for the delay.

Why both blacklist and allowlist ?

Cristian

> > 
> > With below patch, we could resolve the devlink issue and also support
> > mutitple vendor drivers built in, with each vendor driver has a
> > machine_allowlist.
> > 
> > diff --git a/drivers/firmware/arm_scmi/bus.c
> > b/drivers/firmware/arm_scmi/bus.c index
> > 1d2aedfcfdb4..c1c45b545480 100644
> > --- a/drivers/firmware/arm_scmi/bus.c
> > +++ b/drivers/firmware/arm_scmi/bus.c
> > @@ -55,6 +55,20 @@ static int scmi_protocol_device_request(const
> > struct scmi_device_id *id_table)
> >         unsigned int id = 0;
> >         struct list_head *head, *phead = NULL;
> >         struct scmi_requested_dev *rdev;
> > +       const char * const *allowlist = id_table->machine_allowlist;
> > +       const char * const *blocklist = id_table->machine_blocklist;
> > +
> > +       if (blocklist && of_machine_compatible_match(blocklist)) {
> > +               pr_debug("block SCMI device (%s) for protocol %x\n",
> > +                        id_table->name, id_table->protocol_id);
> > +               return 0;
> > +       }
> > +
> > +       if (allowlist && !of_machine_compatible_match(allowlist)) {
> > +               pr_debug("block SCMI device (%s) for protocol %x\n",
> > +                        id_table->name, id_table->protocol_id);
> > +               return 0;
> > +       }
> > 
> >         pr_debug("Requesting SCMI device (%s) for protocol %x\n",
> >                  id_table->name, id_table->protocol_id); diff --git
> > a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index
> > 688466a0e816..e1b822d3522f 100644
> > --- a/include/linux/scmi_protocol.h
> > +++ b/include/linux/scmi_protocol.h
> > @@ -950,6 +950,9 @@ struct scmi_device {  struct scmi_device_id {
> >         u8 protocol_id;
> >         const char *name;
> > +       /* Optional */
> > +       const char * const *machine_blocklist;
> > +       const char * const *machine_allowlist;
> >  };
> 
> Thanks,
> Peng.
> 
> > 
> >  struct scmi_driver {
> > 
> > Thanks,
> > Peng
> > >
> > >Thanks,
> > >Cristian

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ