linux-kernel - Re: [PATCH 1/1] perf tools: fix format max value calculation

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Date:	Thu, 31 Mar 2016 11:49:48 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	kan.liang@...el.com
Cc:	jolsa@...hat.com, ak@...ux.intel.com,
	alexander.shishkin@...ux.intel.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] perf tools: fix format max value calculation

Em Wed, Mar 30, 2016 at 12:16:15PM -0700, kan.liang@...el.com escreveu:
> From: Kan Liang <kan.liang@...el.com>
> 
> Currently the max value of format is calculated by the bits number. It
> relies on the continuity of the format.
> However, uncore event format is not continuous. E.g. uncore qpi event
> format can be 0-7,21.
> If bit 21 is set, there is parsing issues as below.
> perf stat -a -e uncore_qpi_0/event=0x200002,umask=0x8/
> event syntax error: '..pi_0/event=0x200002,umask=0x8/'
>                                   \___ value too big for format, maximum
> is 511
> 
> This patch return the real max value by setting all possible bit to 1.

Looks good, applied.

- Arnaldo