Re: [PATCH tip/core/rcu 04/17] rcu: Add a gcc-style structure initializer for RCU pointers

[David Howells]

Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> wrote:

> RCU_INIT_POINTER() returns a value that is never used, and which should
> be abolished due to terminal ugliness:
> 
> 	q = RCU_INIT_POINTER(global_p, p);
> 
> However, there are two uses that cannot be handled by a do-while
> formulation because they do gcc-style initialization:
> 
> 	RCU_INIT_POINTER(.real_cred, &init_cred),
> 	RCU_INIT_POINTER(.cred, &init_cred),
> 
> This usage is clever, but not necessarily the nicest approach.
> This commit therefore creates an RCU_POINTER_INITIALIZER() macro that
> is specifically designed for gcc-style initialization.
> 
> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>

Acked-by: David Howells <dhowells@xxxxxxxxxx>
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