On Thu, Feb 04, 2016 at 08:41:42AM -0500, Benjamin LaHaise wrote:

On Thu, Feb 04, 2016 at 01:19:59PM +1100, Stephen Rothwell wrote:

quoted

Hi Benjamin,

On Fri, 29 Jan 2016 13:03:39 +0100 Geert Uytterhoeven [off-list ref] wrote:

quoted

On Fri, Jan 29, 2016 at 12:30 PM, Russell King - ARM Linux
[off-list ref] wrote:

quoted

quoted

Background: new aio code is adding __get_user() calls referencing 64
bit quantities (__u64 and __s64).  

There's lots more architectures which do not support 64-bit get_user()
_or_ __get_user(): avr32, blackfin, metag for example, and m68k which
has this interesting thing "/* case 8: disabled because gcc-4.1 has a
broken typeof \" in its *get_user() implementation.  

And if you enable it again, you get lots of "warning: cast to pointer from
integer of different size", like you mentioned.

Any thoughts?  I am still using the version of tha aio tree from
next-20160111.

I am still convinced that this is an architecture issue.  Given that 64 bit 
values work in the *get_user implementations on other architectures, I see 
no reason there should need to be a workaround for this in common code.

So you're happy to break x86-32 then...

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