linux-kernel - Re: [REVIEW][PATCH 01/11] sem/security: Pass kern_ipc_perm not sem

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Date:   Wed, 28 Mar 2018 16:20:29 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     Casey Schaufler <casey@...aufler-ca.com>
Cc:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        Linux Containers <containers@...ts.linux-foundation.org>,
        linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
        khlebnikov@...dex-team.ru, prakash.sangappa@...cle.com,
        luto@...nel.org, akpm@...ux-foundation.org, oleg@...hat.com,
        serge.hallyn@...ntu.com, esyr@...hat.com, jannh@...gle.com,
        linux-security-module@...r.kernel.org,
        Pavel Emelyanov <xemul@...nvz.org>,
        Nagarathnam Muthusamy <nagarathnam.muthusamy@...cle.com>
Subject: Re: [REVIEW][PATCH 01/11] sem/security: Pass kern_ipc_perm not
 sem_array into the sem security hooks

On Fri, 23 Mar 2018, Casey Schaufler wrote:

>A kern_ipc_perm pointer is conventionally named isp in this code.

So the ideal name would be ipcp, used in core ipc, but I have no strong
preference over isp, ipp or whatever other name is used in LSMs. The
important thing is that kern_ipc_perm should not be called sma or any
ipc specific name.

>How about instead:

Agreed.

>
>-static int smack_sem_alloc_security(struct sem_array *sma)
>+static int smack_sem_alloc_security(struct kern_ipc_perm *isp)
> {
>-	struct kern_ipc_perm *isp = &sma->sem_perm;
>

Thanks,
Davidlohr