From: Ray Kinsella <mdr@ashroe.eu>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: dev@dpdk.org, david.marchand@redhat.com, techboard@dpdk.org,
David Christensen <drc@linux.vnet.ibm.com>
Subject: Re: [PATCH] eal/ppc: undefine AltiVec keyword vector
Date: Wed, 25 May 2022 19:02:52 +0100 [thread overview]
Message-ID: <878rqpze0j.fsf@mdr78.vserver.site> (raw)
In-Reply-To: <4084096.uADA5c2rLh@thomas>
Thomas Monjalon <thomas@monjalon.net> writes:
> 25/05/2022 13:48, Ray Kinsella:
>>
>> Thomas Monjalon <thomas@monjalon.net> writes:
>>
>> > The AltiVec header file is defining "vector", except in C++ build.
>> > The keyword "vector" may conflict easily.
>> > As a rule, it is better to use the alternative keyword "__vector".
>> >
>> > The DPDK header file rte_altivec.h takes care of undefining "vector",
>> > so the applications and dependencies are free to define the name "vector".
>> >
>> > This is a compatibility breakage for applications which were using
>> > the keyword "vector" for its AltiVec meaning.
>> >
>> > Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
>> > ---
>> > doc/guides/rel_notes/release_22_07.rst | 5 +++++
>> > lib/eal/ppc/include/rte_altivec.h | 7 +++++++
>> > 2 files changed, 12 insertions(+)
>> >
>>
>> Acked-by: Ray Kinsella <mdr@ashroe.eu>
>
> Just to make sure, we are all OK to break compatibility of rte_altivec.h?
> It means the keyword vector is not available anymore with this #include.
> Please confirm it is OK to merge in DPDK 22.07.
I did think about it yes ;-).
I can't see how it would break the ABI in the short term.
And it makes sense to preclude this keyword in the long term.
So I ack'ed - did I miss something?
--
Regards, Ray K
next prev parent reply other threads:[~2022-05-25 18:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-25 9:53 Thomas Monjalon
2022-05-25 10:01 ` Tyler Retzlaff
2022-05-25 11:08 ` Ali Alnubani
2022-05-25 11:10 ` Ali Alnubani
2022-05-25 11:48 ` Ray Kinsella
2022-05-25 15:40 ` Thomas Monjalon
2022-05-25 18:02 ` Ray Kinsella [this message]
2022-05-25 18:34 ` Tyler Retzlaff
2022-05-26 10:18 ` Thomas Monjalon
2022-05-26 11:02 ` Ray Kinsella
2022-06-01 15:04 ` Thomas Monjalon
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