Re: [PATCH 2/2] x86: ia32_signal: remove unnecessary padding

[Hiroshi Shimamoto]

Andi Kleen wrote:
> Hiroshi Shimamoto <h-shimamoto@xxxxxxxxxxxxx> writes:
> 
>> From: Hiroshi Shimamoto <h-shimamoto@xxxxxxxxxxxxx>
>>
>> Impact: cleanup
> 
> Actually it's not a cleanup.
> 
>> Remove unnecessary paddings, this saves 4 bytes.
> 
> This might actually break code. The code is not actually used,
> but only kept around because some old gdb versions used this
> code as a marker for detecting signals.

I think, this cleanup doesn't change the code copied to user stack.
It removes additional 2 bytes from each struct, and these had not
been copied to user stack, because the structures were 10 bytes and
frame->retcode is 8 bytes.

Thanks,
Hiroshi Shimamoto
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