On Wed, 2016-09-28 at 16:43 +0300, Cyrill Gorcunov wrote: > On Wed, Sep 28, 2016 at 06:29:08AM -0700, Eric Dumazet wrote: > > > > > > Oh, crap :( I've been looking into uapi headers, found that we > > > use anonymous unions (for example include/uapi/linux/bcache.h) > > > and thought it will be safe (and my test builds didn't fail). > > > Are you happen to know which gcc versions cant do that? > > > > The most recent example I have in mind is a kbuild bot report on the > > recent TCP BBR patches. We had to rework the patch to avoid the problem. > > > > If I remember well, this was a gcc-4.7, but not on x86. > > 4.7 is pretty widespread, so I've to think...
Sorry, 4.4.7 it was https://www.mail-archive.com/netdev@vger.kernel.org/msg128714.html
