linux-kernel - Re: [RFC/RFT, RESEND] powerpc: move cacheinfo sysfs to generic cacheinfo infrastructure

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]

Date:	Tue, 31 Mar 2015 21:56:37 +1100 (AEDT)
From:	Michael Ellerman <mpe@...erman.id.au>
To:	Sudeep Holla <Sudeep.Holla@....com>, linux-kernel@...r.kernel.org,
	Anshuman Khandual <khandual@...ux.vnet.ibm.com>
Cc:	linuxppc-dev@...ts.ozlabs.org, Paul Mackerras <paulus@...ba.org>,
	Sudeep Holla <sudeep.holla@....com>
Subject: Re: [RFC/RFT, RESEND] powerpc: move cacheinfo sysfs to generic cacheinfo infrastructure

On Mon, 2015-23-02 at 18:18:20 UTC, Sudeep Holla wrote:
> This patch removes the redundant sysfs cacheinfo code by reusing
> the newly introduced generic cacheinfo infrastructure through the
> commit 246246cbde5e ("drivers: base: support cpu cache information
> interface to userspace via sysfs")
> 
> Signed-off-by: Sudeep Holla <sudeep.holla@....com>
> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
> Cc: Paul Mackerras <paulus@...ba.org>
> Cc: Michael Ellerman <mpe@...erman.id.au>
> Cc: Anshuman Khandual <khandual@...ux.vnet.ibm.com>
> Cc: linuxppc-dev@...ts.ozlabs.org
> ---
>  arch/powerpc/kernel/cacheinfo.c | 811 +++++-----------------------------------
>  arch/powerpc/kernel/cacheinfo.h |   8 -
>  arch/powerpc/kernel/sysfs.c     |  12 +-
>  3 files changed, 91 insertions(+), 740 deletions(-)
>  delete mode 100644 arch/powerpc/kernel/cacheinfo.h
> 
> Hi,
> 
> This patch is not tested. Last time Anshuman tested, he had seen issues.
> The core driver has changed a lot after that. Since PPC depends a lot
> on DT for cache information, there might be issues in the core later
> which I could not identify with ARM/ARM64. It would be much appreciable
> if someone help me in testing and fixing those so that PPC can migrate
> to new/common cacheinfo infrastructure. This resend is rebased on v4.0-rc1

Doesn't build for me.

  arch/powerpc/platforms/pseries/suspend.c:29:36: fatal error: ../../kernel/cacheinfo.h: No such file or directory
  #include "../../kernel/cacheinfo.h"

Anshuman must have worked around that somehow to test it previously?

Removing the include doesn't fix it, it needs cacheinfo_cpu_on/offline().

cheers
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/