linux-kernel - Re: [PATCH] watchdog: diag288_wdt: Implement module autoload

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Message-ID: <20250416072155.7284A2f-hca@linux.ibm.com>
Date: Wed, 16 Apr 2025 09:21:55 +0200
From: Heiko Carstens <hca@...ux.ibm.com>
To: Guenter Roeck <linux@...ck-us.net>
Cc: Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>, linux-watchdog@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org
Subject: Re: [PATCH] watchdog: diag288_wdt: Implement module autoload

On Tue, Apr 15, 2025 at 09:51:35AM -0700, Guenter Roeck wrote:
> On 4/15/25 09:24, Heiko Carstens wrote:
> > On Thu, Apr 10, 2025 at 05:10:50AM -0700, Guenter Roeck wrote:
> > > On 4/10/25 02:50, Heiko Carstens wrote:
> > > > The s390 specific diag288_wdt watchdog driver makes use of the virtual
> > > > watchdog timer, which is available in most machine configurations.
> > > > If executing the diagnose instruction with subcode 0x288 results in an
> > > > exception the watchdog timer is not available, otherwise it is available.
> > > > ---
> > > >    arch/s390/boot/startup.c           | 17 ++++++++++
> > > >    arch/s390/include/asm/cpufeature.h |  1 +
> > > >    arch/s390/include/asm/diag288.h    | 41 +++++++++++++++++++++++
> > > >    arch/s390/include/asm/machine.h    |  1 +
> > > >    arch/s390/kernel/cpufeature.c      |  5 +++
> > > >    drivers/watchdog/diag288_wdt.c     | 53 ++----------------------------
> > > >    6 files changed, 68 insertions(+), 50 deletions(-)
> > > >    create mode 100644 arch/s390/include/asm/diag288.h
> > 
> > Guenter, Wim, I assume this can/should go upstream via the s390 tree?
> 
> It touches s390 core code, and you did not suggest otherwise when submitting
> the patch, so that was my assumption.

Sure, just wanted to check that everybody is fine with this.
Will apply this later to the s390 tree.

Thanks!