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From: Thomas Gleixner <tglx@linutronix.de>
To: Vikas Shivappa <vikas.shivappa@linux.intel.com>
Cc: vikas.shivappa@intel.com, tony.luck@intel.com,
	ravi.v.shankar@intel.com, fenghua.yu@intel.com, x86@kernel.org,
	hpa@zytor.com, linux-kernel@vger.kernel.org, ak@linux.intel.com
Subject: Re: [PATCH 2/6] x86/intel_rdt/mba_sc: Enable/disable MBA software controller
Date: Sun, 13 May 2018 21:35:22 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.21.1805132134250.1582@nanos.tec.linutronix.de> (raw)
In-Reply-To: <1524263781-14267-3-git-send-email-vikas.shivappa@linux.intel.com>

On Fri, 20 Apr 2018, Vikas Shivappa wrote:
> +/*
> + * Enable or disable the MBA software controller
> + * which helps user specify bandwidth in MBps.
> + * MBA software controller is supported only if
> + * MBM is supported and MBA is in linear scale.
> + */
> +static int set_mba_sc(bool mba_sc)
> +{
> +	struct rdt_resource *r = &rdt_resources_all[RDT_RESOURCE_MBA];
> +
> +	if (!is_mbm_enabled() || !is_mba_linear() ||
> +	    mba_sc == is_mba_sc(r))
> +		return -1;

Please use a proper return value as this gets propagated.

Thanks,

	tglx

  reply	other threads:[~2018-05-13 19:35 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-20 22:36 [PATCH V2 0/6] Memory bandwidth allocation software controller(mba_sc) Vikas Shivappa
2018-04-20 22:36 ` [PATCH 1/6] x86/intel_rdt/mba_sc: Documentation for MBA " Vikas Shivappa
2018-05-19 11:21   ` [tip:x86/cache] " tip-bot for Vikas Shivappa
2018-04-20 22:36 ` [PATCH 2/6] x86/intel_rdt/mba_sc: Enable/disable MBA software controller Vikas Shivappa
2018-05-13 19:35   ` Thomas Gleixner [this message]
2018-05-15 20:06     ` Shivappa Vikas
2018-05-19 11:22   ` [tip:x86/cache] " tip-bot for Vikas Shivappa
2018-04-20 22:36 ` [PATCH 3/6] x86/intel_rdt/mba_sc: Add initialization support Vikas Shivappa
2018-05-19 11:22   ` [tip:x86/cache] " tip-bot for Vikas Shivappa
2018-04-20 22:36 ` [PATCH 4/6] x86/intel_rdt/mba_sc: Add schemata support Vikas Shivappa
2018-05-19 11:23   ` [tip:x86/cache] " tip-bot for Vikas Shivappa
2018-04-20 22:36 ` [PATCH 5/6] x86/intel_rdt/mba_sc: Prepare for feedback loop Vikas Shivappa
2018-05-19 11:23   ` [tip:x86/cache] " tip-bot for Vikas Shivappa
2018-04-20 22:36 ` [PATCH 6/6] x86/intel_rdt/mba_sc: Feedback loop to dynamically update mem bandwidth Vikas Shivappa
2018-05-19 11:24   ` [tip:x86/cache] " tip-bot for Vikas Shivappa
2018-05-01  0:38 ` [PATCH V2 0/6] Memory bandwidth allocation software controller(mba_sc) Shivappa Vikas
2018-05-02  8:24   ` Thomas Gleixner

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