Date: Mon, 5 Dec 2016 16:34:23 +0000
From: Catalin Marinas <catalin.marinas@arm.com>
To: Yury Norov <ynorov@caviumnetworks.com>
Cc: arnd@arndb.de, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
        linux-arch@vger.kernel.org, szabolcs.nagy@arm.com,
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        zhouchengming1@huawei.com, Prasun.Kapoor@caviumnetworks.com,
        agraf@suse.de, geert@linux-m68k.org, kilobyte@angband.pl,
        manuel.montezelo@gmail.com, pinskia@gmail.com, linyongting@huawei.com,
        klimov.linux@gmail.com, broonie@kernel.org,
        bamvor.zhangjian@huawei.com,
        Bamvor Zhang Jian <bamvor.zhangjian@linaro.org>,
        maxim.kuvyrkov@linaro.org, Nathan_Lynch@mentor.com,
        schwidefsky@de.ibm.com, davem@davemloft.net,
        christoph.muellner@theobroma-systems.com
Subject: Re: [PATCH 16/18] arm64: ptrace: handle ptrace_request differently
 for aarch32 and ilp32
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On Fri, Oct 21, 2016 at 11:33:15PM +0300, Yury Norov wrote:
> New aarch32 ptrace syscall handler is introduced to avoid run-time
> detection of the task type.

What's wrong with the run-time detection? If it's just to avoid a
negligible overhead, I would rather keep the code simpler by avoiding
duplicating the generic compat_sys_ptrace().

-- 
Catalin