From: Hyeonggon Yoo <42.hyeyoo@gmail.com>
To: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: kernelnewbies <kernelnewbies@kernelnewbies.org>
Subject: Re: Performing pointer arithmetic on a null pointer?
Date: Fri, 28 May 2021 00:56:30 +0900 [thread overview]
Message-ID: <20210527155630.GA139168@hyeyoo> (raw)
In-Reply-To: <CAKXUXMyNDN+Jvou61ZZB+u1=yWj6tAXa94NTTadqwezLV8OS4A@mail.gmail.com>
On Thu, May 27, 2021 at 05:27:06PM +0200, Lukas Bulwahn wrote:
> Hyeonggon,
>
> there is a patch series from Arnd Bergmann, a well-known kernel
> developer and janitor, hanging around here:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=warnings-5.10-2
>
Oh, Arnd Bergmann was already working on it!
> It includes a patch to address this issue:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/commit/?h=warnings-5.10-2&id=cda293a8ee8a2bc763c33828cbc9ff21af987d45
>
> The patch title and commit message indicates that this was submitted
> in multiple versions to the mailing list.
>
> You can find more on its progress on the mailing list here:
> https://lore.kernel.org/lkml/?q=seq_file%3A+fix+clang+warning+for+NULL+pointer+arithmetic
>
Thank you for giving some informations,
it's always fun to read mailing list that I can understand :)
> It seems that it has not landed in linux-next yet, though:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/log/?qt=grep&q=seq_file%3A+fix+clang+warning+for+NULL+pointer+arithmetic
>
Yes I was doing it on linux-next.. :D
> The commit and discussion around it will give you much more technical
> details on the issue and its resolution.
>
> I hope this helps.
>
> Lukas
Thank you for giving some links. it will be much helpful.
I'm going to read it now!
Hyeonggon
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next prev parent reply other threads:[~2021-05-27 15:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-27 15:14 Performing pointer arithmetic on a null pointer? Hyeonggon Yoo
2021-05-27 15:27 ` Lukas Bulwahn
2021-05-27 15:56 ` Hyeonggon Yoo [this message]
2021-05-27 15:32 ` Greg KH
2021-05-27 15:49 ` Hyeonggon Yoo
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