On Sun, Oct 22, 2017 at 02:59:33AM +1100, Aleksa Sarai wrote: > >Here, not necessarily but I don't want to move it for a bogus reason. > >Why would we disallow embedding structs with flexible members in the > >middle when it can be done and is useful? If we want to discuss > >whether we want to avoid such usages in the kernel (but why?), sure, > >let's have that discussion but we can't decide that on "clang warns on > >it by default". > > There was a talk a few years ago by the clang folks[1] saying that > while trying to build a kernel with clang, they discovered that > several places in the kernel uses "VLAIS" (variable Length Arrays In > Structs") and argued that this is a violation of the C > specification, despite it being a GNU extension. They also submitted > several patches that removed this code (even working around a > user-space visible usage of VLAIS). The kernel is explicitly using GNU extended version of C and has always from the beginning, so not-std-c isn't a valid argument. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
