Re: [PATCH] Improve atomic.h implementation robustness

[Thiemo Seufer <ica2_ts@csv.ica.uni-stuttgart.de>]

Richard Sandiford wrote:
> Thiemo Seufer <ica2_ts@csv.ica.uni-stuttgart.de> writes:
> > I tried to use "R" in atomic.h but this failed in some (but not all)
> > cases with
> >
> > include/asm/atomic.h:64: error: inconsistent operand constraints in an asm'
> >
> > where the argument happens to be a member of a global struct.
> 
> Doh!  Do you have any testcases handy?

So far only the whole kernel, which isn't exactly handy.

> Was it failing with >= 3.4,
> or with older toolchains?  3.4 and above should know that 'R' is a
> memory-type constraint.

I saw the same failure for 3.3 and 3.4, I haven't tried 4.0.


Thiemo