linux-kernel - Re: floppy: fix usercopy direction

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Date:   Mon, 12 Aug 2019 12:00:45 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Alexander Popov <alex.popov@...ux.com>,
        Jann Horn <jannh@...gle.com>,
        Julia Lawall <julia.lawall@...6.fr>,
        kernel-janitors@...r.kernel.org, cocci@...teme.lip6.fr
Cc:     linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        kernel-hardening@...ts.openwall.com,
        Al Viro <viro@...iv.linux.org.uk>,
        Denis Efremov <efremov@...ux.com>,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Jens Axboe <axboe@...nel.dk>, Jiri Kosina <jikos@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Mukesh Ojha <mojha@...eaurora.org>,
        Nicolas Palix <nicolas.palix@...g.fr>
Subject: Re: floppy: fix usercopy direction

> …, I see `exists` allows to drop `<+ +>`, right?

I would interpret the combination of such SmPL specifications in a different way.


> It turned out that sparse already can find these bugs.

This is generally nice, isn't it?


> Is this rule useful anyway?

I hope so.

Can scripts for the semantic patch language help any more?


> If so, I can prepare a patch.

Would you like to take corresponding adjustments into account?

Regards,
Markus