linux-kernel - RE: [PATCH v2] extcon: usbc-tusb320: Set interrupt polarity based on device-tree

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]

Date:   Mon, 4 Dec 2023 21:32:53 +0900
From:   "Chanwoo Choi" <cw00.choi@...sung.com>
To:     "'Lukas Funke'" <lukas.funke-oss@...dmueller.com>, <lkp@...el.com>,
        "'MyungJoo Ham'" <myungjoo.ham@...sung.com>
Cc:     <Lukas.Funke@...dmueller.com>, <linux-kernel@...r.kernel.org>,
        <oe-kbuild-all@...ts.linux.dev>,
        "'Lukas Funke'" <lukas.funke@...dmueller.com>
Subject: RE: [PATCH v2] extcon: usbc-tusb320: Set interrupt polarity based
 on device-tree



> -----Original Message-----
> From: Chanwoo Choi <cw00.choi@...sung.com>
> Sent: Monday, December 4, 2023 9:09 PM
> To: 'Lukas Funke' <lukas.funke-oss@...dmueller.com>; 'lkp@...el.com'
> <lkp@...el.com>; 'MyungJoo Ham' <myungjoo.ham@...sung.com>
> Cc: 'Lukas.Funke@...dmueller.com' <Lukas.Funke@...dmueller.com>; 'linux-
> kernel@...r.kernel.org' <linux-kernel@...r.kernel.org>; 'oe-kbuild-
> all@...ts.linux.dev' <oe-kbuild-all@...ts.linux.dev>; 'Lukas Funke'
> <lukas.funke@...dmueller.com>
> Subject: RE: [PATCH v2] extcon: usbc-tusb320: Set interrupt polarity based
> on device-tree
> 
> 
> 
> > -----Original Message-----
> > From: Lukas Funke <lukas.funke-oss@...dmueller.com>
> > Sent: Wednesday, November 22, 2023 5:08 PM
> > To: lkp@...el.com; MyungJoo Ham <myungjoo.ham@...sung.com>; Chanwoo
> > Choi <cw00.choi@...sung.com>
> > Cc: Lukas.Funke@...dmueller.com; linux-kernel@...r.kernel.org;
> > lukas.funke- oss@...dmueller.com; oe-kbuild-all@...ts.linux.dev; Lukas
> > Funke <lukas.funke@...dmueller.com>
> > Subject: [PATCH v2] extcon: usbc-tusb320: Set interrupt polarity based
> > on device-tree
> >
> > From: Lukas Funke <Lukas.Funke@...dmueller.com>
> >
> > Remove 'IRQF_TRIGGER_FALLING' request which is not allowed on every
> > interrupt controller (i.e. arm64 GIC). Replace flag by a request that
> > depends on the actual device-tree setting.
> >
> > Reported-by: kernel test robot <lkp@...el.com>
> > Closes: https://lore.kernel.org/oe-kbuild-all/202311221355.yxYpTIw3-
> > lkp@...el.com/
> > Signed-off-by: Lukas Funke <lukas.funke@...dmueller.com>
> > ---
> >  drivers/extcon/extcon-usbc-tusb320.c | 13 ++++++++++++-
> >  1 file changed, 12 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/extcon/extcon-usbc-tusb320.c
> > b/drivers/extcon/extcon- usbc-tusb320.c index
> > 4d08c2123e59..140ab28dbd36 100644
> > --- a/drivers/extcon/extcon-usbc-tusb320.c
> > +++ b/drivers/extcon/extcon-usbc-tusb320.c
> > @@ -17,6 +17,7 @@
> >  #include <linux/usb/typec.h>
> >  #include <linux/usb/typec_altmode.h>
> >  #include <linux/usb/role.h>
> > +#include <linux/irq.h>
> >
> >  #define TUSB320_REG8				0x8
> >  #define TUSB320_REG8_CURRENT_MODE_ADVERTISE	GENMASK(7, 6)
> > @@ -515,6 +516,8 @@ static int tusb320_probe(struct i2c_client *client)
> >  	const void *match_data;
> >  	unsigned int revision;
> >  	int ret;
> > +	int irq_pol;
> > +	struct irq_data *irq_d;
> >
> >  	priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL);
> >  	if (!priv)
> > @@ -568,9 +571,17 @@ static int tusb320_probe(struct i2c_client *client)
> >  		 */
> >  		tusb320_state_update_handler(priv, true);
> >
> > +	irq_d = irq_get_irq_data(client->irq);
> > +	if (!irq_d) {
> > +		dev_err(&client->dev, "Invalid IRQ: %d\n", client->irq);
> > +		return -ENODEV;
> > +	}
> > +
> > +	irq_pol = irqd_get_trigger_type(irq_d);
> > +
> >  	ret = devm_request_threaded_irq(priv->dev, client->irq, NULL,
> >  					tusb320_irq_handler,
> > -					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
> > +					IRQF_ONESHOT | irq_pol,
> >  					client->name, priv);
> >  	if (ret)
> >  		tusb320_typec_remove(priv);
> > --
> > 2.30.2
> 
> 
> Applied it. Thanks.
> 
> 
> Best Regards,
> Chanwoo Choi


In order to remove the build warning, I changed the variable type
of 'irq_pol' as following:


index 140ab28dbd36..cec1889549a6 100644
--- a/drivers/extcon/extcon-usbc-tusb320.c
+++ b/drivers/extcon/extcon-usbc-tusb320.c
@@ -516,7 +516,7 @@ static int tusb320_probe(struct i2c_client *client)
        const void *match_data;
        unsigned int revision;
        int ret;
-       int irq_pol;
+       u32 irq_pol;
        struct irq_data *irq_d;
 
        priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL);

Best Regards,
Chanwoo Choi