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Re: [Qemu-ppc] [Qemu-devel] [PATCH] compiler: add a sizeof_field() macro


From: Philippe Mathieu-Daudé
Subject: Re: [Qemu-ppc] [Qemu-devel] [PATCH] compiler: add a sizeof_field() macro
Date: Thu, 14 Jun 2018 17:33:04 -0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0

On 06/14/2018 04:17 PM, John Snow wrote:
> On 06/14/2018 12:44 PM, Stefan Hajnoczi wrote:
>> Determining the size of a field is useful when you don't have a struct
>> variable handy.  Open-coding this is ugly.
>>
>> This patch adds the sizeof_field() macro, which is similar to
>> typeof_field().  Existing instances are updated to use the macro.
>>
>> Signed-off-by: Stefan Hajnoczi <address@hidden>
> 
> How'd you find all the existing instances?

This works:

$ git grep -E 'sizeof.*)0)->'

> 
> Reviewed-by: John Snow <address@hidden>
> 
>> ---
>>  include/hw/xen/io/ring.h      |  2 +-
>>  include/qemu/compiler.h       |  2 ++
>>  accel/tcg/translate-all.c     |  2 +-
>>  hw/display/xenfb.c            |  4 ++--
>>  hw/net/rocker/rocker_of_dpa.c |  2 +-
>>  hw/net/virtio-net.c           |  2 +-
>>  target/i386/kvm.c             |  2 +-
>>  target/ppc/arch_dump.c        | 10 +++++-----
>>  target/s390x/arch_dump.c      | 20 ++++++++++----------
>>  9 files changed, 24 insertions(+), 22 deletions(-)



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