On Mon, Dec 26, 2016 at 01:08:09PM +0200, Nikolay Borisov wrote:
> Use the newer and standardized functions when performing volatile
> accesses. Following text is taken from 4d3199e4ca8e
> ("locking: Remove ACCESS_ONCE() usage") :
>
> ACCESS_ONCE() does not work reliably on non-scalar types.
> For example gcc 4.6 and 4.7 might remove the volatile tag
> for such accesses during the SRA (scalar replacement of
> aggregates) step:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145
>
> Signed-off-by: Nikolay Borisov <[email protected]>
A patch fort that has been sent and queued already,
https://patchwork.kernel.org/patch/9476137/
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