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Re: [PATCH] security: use READ_ONCE instead of deprecated ACCESS_ONCE

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  Re: [PATCH] security: use READ_ONCE instead of deprecated ACCESS_ONCE David Howells <dhowells@redhat.com> - 2017-02-10 12:30 +0100

#1578404 — Re: [PATCH] security: use READ_ONCE instead of deprecated ACCESS_ONCE

Davidlohr Bueso <dave@stgolabs.net> wrote:

> With the new standardized functions, we can replace all ACCESS_ONCE()
> calls across relevant security/keyrings/.
> 
> 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
> 
> Update the new calls regardless of if it is a scalar type, this is
> cleaner than having three alternatives.
> 
> Signed-off-by: Davidlohr Bueso <dbueso@suse.de>

Applied.

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