Re: [Xen-devel] [PATCH v2] Xen/atomic: use static inlines instead of macros

[Tim Deegan <tim@xxxxxxx>]

At 10:55 +0000 on 28 Mar (1396000508), Andrew Cooper wrote:
> This is some coverity-inspired tidying.
> 
> Coverity has some grief analysing the call sites of atomic_read().  This is
> believed to be a bug in Coverity itself when expanding the nested macros, but
> there is no legitimate reason for it to be a macro in the first place.
> 
> This patch changes {,_}atomic_{read,set}() from being macros to being static
> inline functions, thus gaining some type safety.
> 
> One issue which is not immediately obvious is that the non-atomic variants 
> take
> their atomic_t at a different level of indirection to the atomic variants.
> 
> This is not suitable for _atomic_set() (when used to initialise an atomic_t)
> which is converted to take its parameter as a pointer.  One callsite of
> _atomic_set() is updated, while the other two callsites are updated to
> ATOMIC_INIT().
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Tim Deegan <tim@xxxxxxx>

FWIW, I approve of converting both kinds of accessors to inlines, just
on general principles.

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