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From: Greg KH <gregkh@linuxfoundation.org>
To: Barry Song <song.bao.hua@hisilicon.com>
Cc: andriy.shevchenko@linux.intel.com, linux-kernel@vger.kernel.org,
	linux@rasmusvillemoes.dk, rafael@kernel.org,
	akpm@linux-foundation.org, rdunlap@infradead.org,
	agordeev@linux.ibm.com, sbrivio@redhat.com,
	jianpeng.ma@intel.com, yury.norov@gmail.com,
	valentin.schneider@arm.com, peterz@infradead.org,
	bristot@redhat.com, guodong.xu@linaro.org,
	tangchengchang@huawei.com, prime.zeng@hisilicon.com,
	yangyicong@huawei.com, tim.c.chen@linux.intel.com,
	tiantao6@hisilicon.com, Jonathan.Cameron@huawei.com,
	linuxarm@huawei.com
Subject: Re: [PATCH v4 2/4] topology: use bin_attribute to avoid buff overflow
Date: Thu, 17 Jun 2021 12:55:59 +0200	[thread overview]
Message-ID: <YMsqP8kf260O6JPJ@kroah.com> (raw)
In-Reply-To: <20210617101910.13228-3-song.bao.hua@hisilicon.com>

On Thu, Jun 17, 2021 at 10:19:08PM +1200, Barry Song wrote:
> From: Tian Tao <tiantao6@hisilicon.com>
> 
> Reading sys/devices/system/cpu/cpuX/topology/ returns cpu topology.
> However, the size of this file is limited to PAGE_SIZE because of the
> limitation for sysfs attribute. so we use bin_attribute instead of
> attribute to avoid NR_CPUS too big to cause buff overflow.
> 
> Link: https://lore.kernel.org/lkml/20210319041618.14316-2-song.bao.hua@hisilicon.com/
> Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: "Rafael J. Wysocki" <rafael@kernel.org>

As with the other patch, you have to also sign off on this as well.

The link is pointing to a v5 of a different patch series, why put that
here?

thanks,

greg k-h

  parent reply	other threads:[~2021-06-17 10:56 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-17 10:19 [PATCH v4 0/4] use bin_attribute to avoid cpumap buff overflow Barry Song
2021-06-17 10:19 ` [PATCH v4 1/4] lib: bitmap: introduce bitmap_print_to_buf Barry Song
2021-06-17 10:47   ` Greg KH
2021-06-18  2:14     ` Song Bao Hua (Barry Song)
2021-06-17 20:54   ` Yury Norov
2021-07-01 11:59     ` Song Bao Hua (Barry Song)
2021-06-17 10:19 ` [PATCH v4 2/4] topology: use bin_attribute to avoid buff overflow Barry Song
2021-06-17 10:54   ` Greg KH
2021-06-17 11:06     ` Song Bao Hua (Barry Song)
2021-06-17 10:55   ` Greg KH [this message]
2021-06-17 11:03     ` Song Bao Hua (Barry Song)
2021-06-17 10:19 ` [PATCH v4 3/4] drivers/base/node.c: " Barry Song
2021-06-17 10:55   ` Greg KH
2021-06-17 10:19 ` [PATCH v4 4/4] lib: test_bitmap: add bitmap_print_to_buf test cases Barry Song
2021-06-17 21:17 ` [PATCH v4 0/4] use bin_attribute to avoid cpumap buff overflow Yury Norov
2021-06-17 23:48   ` Song Bao Hua (Barry Song)

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