Re: [PATCH v3 04/11] xprtrdma: Move struct ib_send_wr off the stack

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On Wed, Dec 16, 2015 at 10:13:31AM -0500, Chuck Lever wrote:
> > Shouldn't be an issue with transparent unions these days:
> > 
> > 	union {
> > 		struct ib_reg_wr                fr_regwr;
> > 		struct ib_send_wr               fr_invwr;
> > 	};
> 
> Right, but isn't that a gcc-ism that Al hates? If
> everyone is OK with that construction, I will use it.

I started out as a GNUism, but now is supported in C11.  We use it
a lot all over the kernel.
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