linux-kernel - Re: [PATCH] tpm/tpm_tis: Disable interrupts for TUXEDO InfinityBook S 15/17 Gen7

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Date:   Sat, 29 Jul 2023 09:06:26 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     "Jarkko Sakkinen" <jarkko@...nel.org>
Cc:     "Takashi Iwai" <tiwai@...e.de>, "Peter Huewe" <peterhuewe@....de>,
        "Jason Gunthorpe" <jgg@...pe.ca>,
        "Lino Sanfilippo" <l.sanfilippo@...bus.com>,
        <linux-integrity@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] tpm/tpm_tis: Disable interrupts for TUXEDO InfinityBook S 15/17 Gen7

On Fri, 28 Jul 2023 21:24:30 +0200,
Jarkko Sakkinen wrote:
> 
> On Wed Jul 26, 2023 at 6:00 PM UTC, Takashi Iwai wrote:
> > TUXEDO InfinityBook S 15/17 Gen7 suffers from an IRQ problem on
> > tpm_tis like a few other laptops.  Add an entry for the workaround.
> >
> > Cc: stable@...r.kernel.org
> > Fixes: e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test")
> > Link: https://bugzilla.suse.com/show_bug.cgi?id=1213645
> > Signed-off-by: Takashi Iwai <tiwai@...e.de>
> > ---
> >  drivers/char/tpm/tpm_tis.c | 8 ++++++++
> >  1 file changed, 8 insertions(+)
> >
> > diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
> > index cc42cf3de960..a98773ac2e55 100644
> > --- a/drivers/char/tpm/tpm_tis.c
> > +++ b/drivers/char/tpm/tpm_tis.c
> > @@ -162,6 +162,14 @@ static const struct dmi_system_id tpm_tis_dmi_table[] = {
> >  			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L590"),
> >  		},
> >  	},
> > +	{
> > +		.callback = tpm_tis_disable_irq,
> > +		.ident = "TUXEDO InfinityBook S 15/17 Gen7",
> > +		.matches = {
> > +			DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
> > +			DMI_MATCH(DMI_PRODUCT_NAME, "TUXEDO InfinityBook S 15/17 Gen7"),
> > +		},
> > +	},
> >  	{
> >  		.callback = tpm_tis_disable_irq,
> >  		.ident = "UPX-TGL",
> > -- 
> > 2.35.3
> 
> Hi does this occur with the latest linux-next and/or v6.5-rc3?

Not tested yet, but do you have any relevant fix except for the commit
481c2d14627d ("tpm,tpm_tis: Disable interrupts after 1000 unhandled
IRQs")?  That commit was already tested, at least.


thanks,

Takashi