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2018-06-27compiler: add a sizeof_field() macroStefan Hajnoczi
Determining the size of a field is useful when you don't have a struct variable handy. Open-coding this is ugly. This patch adds the sizeof_field() macro, which is similar to typeof_field(). Existing instances are updated to use the macro. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Message-id: 20180614164431.29305-1-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-04-21xen: import ring.h from xenStefano Stabellini
Do not use the ring.h header installed on the system. Instead, import the header into the QEMU codebase. This avoids problems when QEMU is built against a Xen version too old to provide all the ring macros. Signed-off-by: Stefano Stabellini <stefano@aporeto.com> Reviewed-by: Greg Kurz <groug@kaod.org> CC: anthony.perard@citrix.com CC: jgross@suse.com