linux-kernel - Re: [PATCH] perf/x86: fix bug in event constraint end marker macro

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Message-ID: <20131204090336.GA31973@gmail.com>
Date:	Wed, 4 Dec 2013 10:03:36 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, peterz@...radead.org,
	ak@...ux.intel.com, jolsa@...hat.com, zheng.z.yan@...el.com
Subject: Re: [PATCH] perf/x86: fix bug in event constraint end marker macro


* Stephane Eranian <eranian@...gle.com> wrote:

>  #define EVENT_CONSTRAINT_END		\
> -	EVENT_CONSTRAINT(0, 0, 0)
> +	{ .idxmsk64 = 0,		\
> +	  .code = 0,			\
> +	  .cmask = 0,			\
> +	  .weight = -1,			\
> +	  .overlap = 0,			\
> +	  .flags = 0,			\
> +}

A nit, simply writing:

#define EVENT_CONSTRAINT_END { .weight = -1, }

... should be enough as initialization to zero is guaranteed for the 
other fields.

Thanks,

	Ingo
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