linux-kernel - Re: [PATCH][next] perf/x86/rapl: replace 0 with NULL to initialize pointers

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Message-ID: <YfBsb/3fR7v7tnr4@hirez.programming.kicks-ass.net>
Date:   Tue, 25 Jan 2022 22:32:31 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Colin Ian King <colin.i.king@...il.com>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H . Peter Anvin" <hpa@...or.com>,
        linux-perf-users@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] perf/x86/rapl: replace 0 with NULL to initialize
 pointers

On Tue, Jan 25, 2022 at 08:14:03PM +0000, Colin Ian King wrote:
> Pointers should be initialized with NULL rather than zero. Fix these.

Why ? This isn't C++, heck, this isn't even C, this is the kernel, we
hard rely on NULL being 0.