linux-kernel - Re: [PATCH] perf/x86/intel/uncore: fix Add BW copypasta

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Message-ID: <20201110165959.GO2594@hirez.programming.kicks-ass.net>
Date:   Tue, 10 Nov 2020 17:59:59 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>, x86@...nel.org,
        Vaibhav Shankar <vaibhav.shankar@...el.com>,
        Arnd Bergmann <arnd@...db.de>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Andi Kleen <ak@...ux.intel.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf/x86/intel/uncore: fix Add BW copypasta

On Mon, Oct 26, 2020 at 10:51:57PM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> gcc -Wextra points out a duplicate initialization of one array
> member:
> 
> arch/x86/events/intel/uncore_snb.c:478:37: warning: initialized field overwritten [-Woverride-init]
>   478 |  [SNB_PCI_UNCORE_IMC_DATA_READS]  = { SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE,
> 
> The only sensible explanation is that a duplicate 'READS' was used
> instead of the correct 'WRITES', so change it back.
> 
> Fixes: 24633d901ea4 ("perf/x86/intel/uncore: Add BW counters for GT, IA and IO breakdown")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Thanks!