linux-kernel - Re: [PATCH v1 1/1] KVM: s390: Don't cast parameter in bit operations

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Message-ID: <Yh+REPSQd1zX8KlQ@smile.fi.intel.com>
Date:   Wed, 2 Mar 2022 17:45:20 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Christian Borntraeger <borntraeger@...ux.ibm.com>,
        kvm@...r.kernel.org, linux-s390@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Janosch Frank <frankja@...ux.ibm.com>,
        Claudio Imbrenda <imbrenda@...ux.ibm.com>,
        David Hildenbrand <david@...hat.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>
Subject: Re: [PATCH v1 1/1] KVM: s390: Don't cast parameter in bit operations

On Wed, Feb 23, 2022 at 06:44:20PM +0200, Andy Shevchenko wrote:
> While in this particular case it would not be a (critical) issue,
> the pattern itself is bad and error prone in case somebody blindly
> copies to their code.
> 
> Don't cast parameter to unsigned long pointer in the bit operations.
> Instead copy to a local variable on stack of a proper type and use.

After looking into other similar cases I may conclude they
- need to be fixed
- out of scope of this change

Hence, can this fix be applied?

-- 
With Best Regards,
Andy Shevchenko