linux-kernel - Re: [PATCH RFC 1/3] drivers: base: support cpu cache information interface to userspace via sysfs

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Date:	Wed, 8 Jan 2014 12:26:13 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Sudeep Holla <sudeep.holla@....com>
Cc:	x86@...nel.org, linuxppc-dev@...ts.ozlabs.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Ashok Raj <ashok.raj@...el.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Rob Herring <robh@...nel.org>
Subject: Re: [PATCH RFC 1/3] drivers: base: support cpu cache information
 interface to userspace via sysfs

On Wed, Jan 08, 2014 at 07:26:06PM +0000, Sudeep Holla wrote:
> From: Sudeep Holla <sudeep.holla@....com>
> 
> This patch adds initial support for providing processor cache information
> to userspace through sysfs interface. This is based on x86 implementation
> and hence the interface is intended to be fully compatible.
> 
> A per-cpu array of cache information maintained is used mainly for
> sysfs-related book keeping.
> 
> Signed-off-by: Sudeep Holla <sudeep.holla@....com>
> ---
>  drivers/base/Makefile     |   2 +-
>  drivers/base/cacheinfo.c  | 296 ++++++++++++++++++++++++++++++++++++++++++++++
>  include/linux/cacheinfo.h |  43 +++++++
>  3 files changed, 340 insertions(+), 1 deletion(-)
>  create mode 100644 drivers/base/cacheinfo.c
>  create mode 100644 include/linux/cacheinfo.h

You are creating sysfs files, yet you didn't add Documentation/ABI/
information, which is required.  Please fix that.

greg k-h
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