linux-kernel - Re: [RFC PATCH v4 2/5] ptp: Reorganize ptp_kvm modules to make it arch-independent.

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Message-ID: <4337dcf0-bd60-4db8-6c9f-cd718b89d2a4@arm.com>
Date:   Fri, 27 Sep 2019 11:12:03 +0100
From:   Suzuki K Poulose <suzuki.poulose@....com>
To:     "Jianyong Wu (Arm Technology China)" <Jianyong.Wu@....com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "yangbo.lu@....com" <yangbo.lu@....com>,
        "john.stultz@...aro.org" <john.stultz@...aro.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "pbonzini@...hat.com" <pbonzini@...hat.com>,
        "sean.j.christopherson@...el.com" <sean.j.christopherson@...el.com>,
        "maz@...nel.org" <maz@...nel.org>,
        "richardcochran@...il.com" <richardcochran@...il.com>,
        Mark Rutland <Mark.Rutland@....com>,
        Will Deacon <Will.Deacon@....com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "kvmarm@...ts.cs.columbia.edu" <kvmarm@...ts.cs.columbia.edu>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        Steve Capper <Steve.Capper@....com>,
        "Kaly Xin (Arm Technology China)" <Kaly.Xin@....com>,
        "Justin He (Arm Technology China)" <Justin.He@....com>,
        nd <nd@....com>
Subject: Re: [RFC PATCH v4 2/5] ptp: Reorganize ptp_kvm modules to make it
 arch-independent.



On 27/09/2019 11:10, Jianyong Wu (Arm Technology China) wrote:
> Hi Suzuki,
> 
>> -----Original Message-----
>> From: Suzuki K Poulose <suzuki.poulose@....com>
>> Sent: Thursday, September 26, 2019 9:06 PM
>> To: Jianyong Wu (Arm Technology China) <Jianyong.Wu@....com>;
>> netdev@...r.kernel.org; yangbo.lu@....com; john.stultz@...aro.org;
>> tglx@...utronix.de; pbonzini@...hat.com; sean.j.christopherson@...el.com;
>> maz@...nel.org; richardcochran@...il.com; Mark Rutland
>> <Mark.Rutland@....com>; Will Deacon <Will.Deacon@....com>
>> Cc: linux-kernel@...r.kernel.org; linux-arm-kernel@...ts.infradead.org;
>> kvmarm@...ts.cs.columbia.edu; kvm@...r.kernel.org; Steve Capper
>> <Steve.Capper@....com>; Kaly Xin (Arm Technology China)
>> <Kaly.Xin@....com>; Justin He (Arm Technology China)
>> <Justin.He@....com>; nd <nd@....com>
>> Subject: Re: [RFC PATCH v4 2/5] ptp: Reorganize ptp_kvm modules to make it
>> arch-independent.
>>
>> Hi Jianyong,
>>
>> On 26/09/2019 12:42, Jianyong Wu wrote:
>>> Currently, ptp_kvm modules implementation is only for x86 which
>>> includs large part of arch-specific code.  This patch move all of
>>> those code into new arch related file in the same directory.
>>>
>>> Signed-off-by: Jianyong Wu <jianyong.wu@....com>
>>> ---
>>>    drivers/ptp/Makefile                 |  1 +
>>>    drivers/ptp/{ptp_kvm.c => kvm_ptp.c} | 77 ++++++------------------
>>>    drivers/ptp/ptp_kvm_x86.c            | 87
>> ++++++++++++++++++++++++++++
>>>    include/asm-generic/ptp_kvm.h        | 12 ++++
>>>    4 files changed, 118 insertions(+), 59 deletions(-)
>>>    rename drivers/ptp/{ptp_kvm.c => kvm_ptp.c} (63%)
>>
>> minor nit: Could we not skip renaming the file ? Given you are following the
>> ptp_kvm_* for the arch specific files and the header files, wouldn't it be
>> good to keep ptp_kvm.c ?
>>
> If the module name ptp_kvm.ko is the same with its dependent object file ptp_kvm.o, warning will be given by compiler,
> So I change the ptp_kvm.c to kvm_ptp.c to avoid that conflict.

Hmm, ok. How about ptp_kvm_common.c instead of kvm_ptp.c ?

Suzuki