linux-kernel - Re: [PATCH v2 12/13] powerpc/ftrace: Prepare ftrace_64

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: <758cd183-b2cf-3cab-7fcb-6fa485997209@csgroup.eu>
Date:   Tue, 15 Feb 2022 08:33:07 +0000
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>,
        Jiri Kosina <jikos@...nel.org>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Miroslav Benes <mbenes@...e.cz>,
        Ingo Molnar <mingo@...hat.com>, Petr Mladek <pmladek@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "live-patching@...r.kernel.org" <live-patching@...r.kernel.org>
Subject: Re: [PATCH v2 12/13] powerpc/ftrace: Prepare ftrace_64_mprofile.S for
 reuse by PPC32



Le 14/02/2022 à 18:51, Naveen N. Rao a écrit :
> Christophe Leroy wrote:
>> PPC64 mprofile versions and PPC32 are very similar.
>>
>> Modify PPC64 version so that if can be reused for PPC32.
>>
>> Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
>> ---
>>  .../powerpc/kernel/trace/ftrace_64_mprofile.S | 73 +++++++++++++------
>>  1 file changed, 51 insertions(+), 22 deletions(-)
> 
> While I agree that ppc32 and -mprofile-kernel ftrace code are very 
> similar, I think this patch adds way too many #ifdefs. IMHO, this
> makes the resultant code quite difficult to follow.

Ok, I can introduce some GAS macros for a few of them in a followup patch.

Christophe