linux-kernel - Re: [RFC] perf: perf_event_attr anon unions and static initializer issue

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Date:	Fri, 05 Oct 2012 13:01:19 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	"mingo@...e.hu" <mingo@...e.hu>, David Ahern <dsahern@...il.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Namhyung Kim <namhyung.kim@....com>
Subject: Re: [RFC] perf: perf_event_attr anon unions and static initializer
 issue

On Fri, 2012-10-05 at 12:36 +0200, Stephane Eranian wrote:

> struct perf_event_attr attr = { .config = 0x1234, .config1 = 0x456 };

> Does anyone have a better solution to propose?


  struct perf_event_attr attr = { 
	.config = 0x1234, 
	{ .config1 = 0x5678 },
  };

sometimes works, but apparently not in this case.. its a bit unfortunate
indeed. EDG based compilers and the latest C std use your version --
hence also 4.6 supporting it.

Yeah, I'm afraid we're stuck with this until a future where modern C
isn't modern anymore.
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