linux-kernel - Re: [PATCH 22/24] uaccess: add memzero

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Message-ID: <e2e23a99-f682-1556-dad0-408e78233eb6@redhat.com>
Date:   Wed, 20 May 2020 23:13:36 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        vkuznets@...hat.com, Joerg Roedel <jroedel@...e.de>
Subject: Re: [PATCH 22/24] uaccess: add memzero_user

On 20/05/20 22:40, Christoph Hellwig wrote:
> On Wed, May 20, 2020 at 01:21:43PM -0400, Paolo Bonzini wrote:
>> +			unsafe_put_user(val, (unsigned long __user *) from, err_fault);
> This adds a way too long line.  In many ways it would be much nicer if
> you used an unsigned long __user * variable internally, a that would
> remove all these crazy casts and actually make the code readable.
> 

Good idea, thanks.

Paolo