linux-kernel - Re: [PATCH 1/4] perf/x86/cqm: Use kmalloc_array() in intel_mbm

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Message-ID: <20160905075239.GR10153@twins.programming.kicks-ass.net>
Date:   Mon, 5 Sep 2016 09:52:39 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:     x86@...nel.org, Borislav Petkov <bp@...e.de>,
        "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
        Richard Cochran <rcochran@...utronix.de>,
        Stephane Eranian <eranian@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tony Luck <tony.luck@...el.com>,
        Vikas Shivappa <vikas.shivappa@...ux.intel.com>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>,
        Paolo Bonzini <pbonzini@...hat.com>
Subject: Re: [PATCH 1/4] perf/x86/cqm: Use kmalloc_array() in intel_mbm_init()

On Sun, Sep 04, 2016 at 07:54:47PM +0200, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Sun, 4 Sep 2016 17:28:13 +0200
> 
> * A multiplication for the size determination of a memory allocation
>   indicated that an array data structure should be processed.
>   Thus use the corresponding function "kmalloc_array".
> 
>   This issue was detected by using the Coccinelle software.
> 
> * Replace the specification of a data structure by a pointer dereference
>   to make the corresponding size determination a bit safer according to
>   the Linux coding style convention.

Again, lack of actual reason..