From: Willem de Bruijn <willemdebruijn.ker...@gmail.com>
Date: Fri, 25 Aug 2017 13:10:43 -0400
> From: Willem de Bruijn <will...@google.com>
>
> The xen driver initializes struct ubuf_info fields using designated
> initializers. I recently moved these fields inside a nested anonymous
> struct inside an anonymous union. I had missed this use case.
>
> This breaks compilation of xen-netback with older compilers.
> From kbuild bot with gcc-4.4.7:
>
> drivers/net//xen-netback/interface.c: In function
> 'xenvif_init_queue':
> >> drivers/net//xen-netback/interface.c:554: error: unknown field 'ctx'
> specified in initializer
> >> drivers/net//xen-netback/interface.c:554: warning: missing braces
> around initializer
> drivers/net//xen-netback/interface.c:554: warning: (near initialization
> for '(anonymous).<anonymous>')
> >> drivers/net//xen-netback/interface.c:554: warning: initialization makes
> integer from pointer without a cast
> >> drivers/net//xen-netback/interface.c:555: error: unknown field 'desc'
> specified in initializer
>
> Add double braces around the designated initializers to match their
> nested position in the struct. After this, compilation succeeds again.
>
> Fixes: 4ab6c99d99bb ("sock: MSG_ZEROCOPY notification coalescing")
> Reported-by: kbuild bot <l...@intel.com>
> Signed-off-by: Willem de Bruijn <will...@google.com>
APplied.
