linux-kernel - Re: [RFCv2][PATCH 2/5] arm: Implement ARCH_HAS_FORCE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <afd22029-c60c-1c15-3293-4011b085e07e@gmail.com>
Date:	Tue, 9 Aug 2016 14:56:17 -0700
From:	Florian Fainelli <f.fainelli@...il.com>
To:	Laura Abbott <labbott@...hat.com>,
	Sumit Semwal <sumit.semwal@...aro.org>,
	John Stultz <john.stultz@...aro.org>,
	Arve Hjønnevåg <arve@...roid.com>,
	Riley Andrews <riandrews@...roid.com>
Cc:	devel@...verdev.osuosl.org, Jon Medhurst <tixy@...aro.org>,
	Android Kernel Team <kernel-team@...roid.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Will Deacon <will.deacon@....com>,
	Russell King <linux@...linux.org.uk>,
	linux-kernel@...r.kernel.org, linaro-mm-sig@...ts.linaro.org,
	Rohit kumar <rohit.kr@...sung.com>,
	Bryan Huntsman <bryanh@...eaurora.org>,
	Jeremy Gebben <jgebben@...eaurora.org>,
	Eun Taik Lee <eun.taik.lee@...sung.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Liviu Dudau <Liviu.Dudau@....com>,
	Mitchel Humpherys <mitchelh@...eaurora.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [RFCv2][PATCH 2/5] arm: Implement ARCH_HAS_FORCE_CACHE

On 08/08/2016 10:49 AM, Laura Abbott wrote:
> arm may need the kernel_force_cache APIs to guarantee data consistency.
> Implement versions of these APIs based on the DMA APIs.
> 
> Signed-off-by: Laura Abbott <labbott@...hat.com>
> ---
>  arch/arm/include/asm/cacheflush.h |   4 ++
>  arch/arm/mm/dma-mapping.c         | 119 --------------------------------------
>  arch/arm/mm/flush.c               | 115 ++++++++++++++++++++++++++++++++++++

Why is the code moved between dma-mapping.c and flush.c? It was not
obvious while looking at these patches why this is needed.
-- 
Florian