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From: Laszlo Ersek <lersek@redhat.com>
To: Jordan Justen <jordan.l.justen@intel.com>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	edk2-devel-01 <edk2-devel@ml01.01.org>,
	"Kinney, Michael D" <michael.d.kinney@intel.com>,
	Leif Lindholm <leif.lindholm@linaro.org>,
	"afish@apple.com" <afish@apple.com>
Cc: "Gao, Liming" <liming.gao@intel.com>
Subject: Re: [Bug 164] Add the build option "/D DISABLE_NEW_DEPRECATED_INTERFACES" in package DSC files
Date: Fri, 21 Oct 2016 22:14:16 +0200	[thread overview]
Message-ID: <da6e08cc-1c4d-4d75-c54a-4ac552b4dce9@redhat.com> (raw)
In-Reply-To: <147707992484.13791.10042868456965197315@jljusten-ivb>

On 10/21/16 21:58, Jordan Justen wrote:
> On 2016-10-21 12:37:21, Ard Biesheuvel wrote:
>> I don't remember seeing any discussion regarding
>> DISABLE_NEW_DEPRECATED_INTERFACES on the list, so I am a bit surprised
>> seeing these bugs being filed and assigned.
>>
> 
> I agree.
> 
> Also, the terminology seems confusing. 'new deprecated' seems like a
> contradiction. I guess it means 'newly deprecated', but that seems
> like a term that is quickly going to become obsolete. Soon there will
> be old deprecated items that are disabled with this switch.
> DISABLE_DEPRECATED_INTERFACES sounds better.
> 
> But, shouldn't we have platforms opt-in to using the deprecated
> interfaces rather than adding DISABLE_NEW_DEPRECATED_INTERFACES to the
> build command line for every EDK II platform?
> 
> Not using deprecated items should be the default for EDK II platforms.
> If a platform has to opt-in to the deprecated content in their .dsc,
> then it is obvious that they are relying on deprecated functionality.
> 
> So, I guess I'd propose adding ENABLE_DEPRECATED_INTERFACES instead.

I'm about to post a ~20-part series for OvmfPkg and ArmVirtPkg together
that solves these BZs. :/ The DISABLE_NEW_DEPRECATED_INTERFACES feature
test macro is already being used in three MdePkg library class header
files (and a number of library instances), so I thought it was a done deal.

I don't want to stifle the discussion of course, but at this point I
think I will post the patches for review.

Thanks
Laszlo

> -Jordan
> 
>> Before making any such changes, I would like a strong commitment from
>> other package owners that deprecating an interface brings along with
>> it the responsibility to update all existing callers, otherwise
>> setting this define will only result in more breakage, and ARM has
>> seen its share of inadvertent breakage in the past when changes to
>> core code were made without taking other architectures into account.
>>
>> On 21 October 2016 at 02:21,  <bugzilla-daemon@bugzilla.tianocore.org> wrote:
>>> https://bugzilla.tianocore.org/show_bug.cgi?id=164
>>>
>>> yonghong.zhu@intel.com changed:
>>>
>>>            What    |Removed                     |Added
>>> ----------------------------------------------------------------------------
>>>            Priority|Lowest                      |Normal
>>>              Status|UNCONFIRMED                 |CONFIRMED
>>>            Assignee|michael.d.kinney@intel.com  |ard.biesheuvel@linaro.org
>>>      Ever confirmed|0                           |1
>>>      Release(s) the|                            |EDK II Trunk
>>>      issues must be|                            |
>>>               fixed|                            |
>>>
>>> --- Comment #1 from yonghong.zhu@intel.com ---
>>> Assign to Package owner.
>>>
>>> --
>>> You are receiving this mail because:
>>> You are the assignee for the bug.
>> _______________________________________________
>> edk2-devel mailing list
>> edk2-devel@lists.01.org
>> https://lists.01.org/mailman/listinfo/edk2-devel



  reply	other threads:[~2016-10-21 20:14 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-164-63@https.bugzilla.tianocore.org/>
     [not found] ` <bug-164-63-L8k0GFC2io@https.bugzilla.tianocore.org/>
2016-10-21 19:37   ` [Bug 164] Add the build option "/D DISABLE_NEW_DEPRECATED_INTERFACES" in package DSC files Ard Biesheuvel
2016-10-21 19:41     ` Michael Zimmermann
2016-10-21 19:58     ` Jordan Justen
2016-10-21 20:14       ` Laszlo Ersek [this message]
2016-10-21 20:19         ` Ard Biesheuvel
2016-10-21 20:40           ` Laszlo Ersek
2016-10-21 20:57             ` Ard Biesheuvel
2016-10-21 20:20       ` Andrew Fish
2016-10-21 20:39         ` Jordan Justen
2016-10-21 20:54           ` Andrew Fish
2016-10-21 20:55             ` Andrew Fish
2016-10-21 21:02           ` Laszlo Ersek
2016-10-21 22:10             ` Jordan Justen
2016-10-21 22:31               ` Laszlo Ersek
2016-10-21 23:13                 ` Yao, Jiewen
2016-10-23 14:28                   ` Mudusuru, Giri P

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