linux-kernel - Re: [PATCH] perf/x86: Unify format of events sysfs show

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Message-ID: <20220324101107.GC8939@worktop.programming.kicks-ass.net>
Date:   Thu, 24 Mar 2022 11:11:07 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Yang Jihong <yangjihong1@...wei.com>
Cc:     mingo@...hat.com, acme@...nel.org, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
        namhyung@...nel.org, tglx@...utronix.de, bp@...en8.de,
        dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf/x86: Unify format of events sysfs show

On Thu, Mar 24, 2022 at 11:19:57AM +0800, Yang Jihong wrote:
> Sysfs show formats of files in /sys/devices/cpu/events/ are not unified,
> some end with "\n", and some do not. Modify sysfs show format of events
> defined by EVENT_ATTR_STR to end with "\n".

Did you test all the userspace that consumes these fields to make sure
none of them break? I suppose it's mostly perf tool, but I'm fairly sure
there's others out there as well.