linux-kernel - Re: [PATCH v4] coccinelle: api: add kvfree script

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Message-ID: <alpine.DEB.2.22.394.2007302214160.2548@hadrien>
Date:   Thu, 30 Jul 2020 22:15:26 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Denis Efremov <efremov@...ux.com>
cc:     cocci@...teme.lip6.fr, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4] coccinelle: api: add kvfree script

Actually, the message looks fine.  Sorry for the noise about that.

However there is a problem in the kfree case:

> +@...ee depends on !patch@
> +expression E;
> +position v != choice.vok;
> +position p;
> +@@
> +
> +* E = \(vmalloc@v\|vzalloc@v\|vmalloc_user@v\|vmalloc_node@v\|vzalloc_node@v\|
> +        vmalloc_exec@v\|vmalloc_32@v\|vmalloc_32_user@v\|__vmalloc@v\|
> +        __vmalloc_node_range@v\|__vmalloc_node@v\)(...)
> +  ... when != !is_vmalloc_addr(E)
> +      when any
> +* \(kfree\|kzfree\|kvfree\)(E)

p is not used.  The last line should be (E)@p.

julia