Re: [PATCH] Use __kernel_long_t in struct mq_attr

From: H.J. Lu
Date: Thu Dec 26 2013 - 13:10:39 EST

On Thu, Dec 26, 2013 at 10:03 AM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
> On 12/26/2013 09:59 AM, H.J. Lu wrote:
>>> but it would seem to give the wrong types when __BITS_PER_LONG in
>>> userspace is 32.
>> For x32, __BITS_PER_LONG is 64, not 32. If __BITS_PER_LONG
>> is 32, my patch doesn't change anything. If it works before,
>> it still works. If it is broken before, it remains broken.
>> I prefer my first patch, which is less clutter. But I can't guarantee
>> it is correct for all x3-like ABIs. My second patch has more
>> clutter, but it has no impact on other ABIs.
> It's rather simple to prove, which is to consider the generic definition
> of __kernel_[u]long_t.

Then. I withdrew my second alternative with __BITS_PER_LONG == 64
check.. Please use my first alternative for all my kernel_long_t and
kernel_ulong_t patches.


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