From: Markus Elfring <Markus.Elfring@web.de>
To: Julia Lawall <julia.lawall@lip6.fr>
Cc: Coccinelle <cocci@systeme.lip6.fr>
Subject: Re: [Cocci] Checking for a null pointer with SmPL
Date: Mon, 17 Jun 2019 08:04:48 +0200 [thread overview]
Message-ID: <20258ea9-f69b-a0c2-01ed-e3ee8681bdf0@web.de> (raw)
In-Reply-To: <alpine.DEB.2.21.1906170747030.2965@hadrien>
>> Should an isomorphism specification like “not_ptr2” help here?
>> https://github.com/coccinelle/coccinelle/blob/19ee1697bf152d37a78a20cefe148775bf4b0e0d/standard.iso#L157
>
> No, because Coccinelle does not know that it is a pointer.
> How should it know?
Can the software determine that the expression metavariable refers to
a pointer variable (within the implementation of a function like “rtw_ap_set_key”)?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/staging/rtl8723bs/core/rtw_ap.c?id=9e0babf2c06c73cda2c0cd37a1653d823adb40ec#n1479
https://elixir.bootlin.com/linux/v5.2-rc5/source/drivers/staging/rtl8723bs/core/rtw_ap.c#L1479
Regards,
Markus
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next prev parent reply other threads:[~2019-06-17 6:05 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-16 20:07 [Cocci] Checking for a null pointer with SmPL Markus Elfring
2019-06-16 20:15 ` Julia Lawall
2019-06-17 5:44 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.1906170747030.2965@hadrien>
2019-06-17 6:04 ` Markus Elfring [this message]
2019-06-17 6:07 ` Julia Lawall
2019-06-17 6:14 ` Markus Elfring
[not found] ` <alpine.DEB.2.21.1906170830240.2965@hadrien>
2019-06-17 6:38 ` Markus Elfring
[not found] ` <alpine.DEB.2.20.1906170938530.3699@hadrien>
2019-06-17 16:42 ` Markus Elfring
2019-06-18 6:33 ` Markus Elfring
[not found] ` <alpine.DEB.2.20.1906180936090.3707@hadrien>
2019-06-18 8:10 ` Markus Elfring
2019-06-18 17:27 ` Markus Elfring
[not found] ` <alpine.DEB.2.20.1906181932030.25567@hadrien>
2019-06-18 18:11 ` Markus Elfring
2019-06-19 6:11 ` [Cocci] Handling of pointer expressions by SmPL Markus Elfring
[not found] ` <alpine.DEB.2.21.1906190843070.2687@hadrien>
2019-06-19 7:01 ` Markus Elfring
2019-06-19 8:11 ` Julia Lawall
2019-06-19 8:26 ` Markus Elfring
[not found] ` <alpine.DEB.2.20.1906191223350.3726@hadrien>
2019-06-19 11:20 ` Markus Elfring
[not found] ` <alpine.DEB.2.20.1906191321480.3726@hadrien>
2019-06-19 11:40 ` Markus Elfring
2019-06-19 11:40 ` Markus Elfring
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