On 07/11/2014 11:39 AM, Andy Lutomirski wrote: > On Fri, Jul 11, 2014 at 11:12 AM, Andi Kleen <a...@firstfloor.org> wrote: >>> diff --git a/arch/x86/include/uapi/asm/sigcontext.h >>> b/arch/x86/include/uapi/asm/sigcontext.h >>> index 076b11f..df9908b 100644 >>> --- a/arch/x86/include/uapi/asm/sigcontext.h >>> +++ b/arch/x86/include/uapi/asm/sigcontext.h >> >> I don't think renaming fields in uapi/asm is acceptable. These >> are likely used by user programs and you'll break compiles. > > Hmm. That's a fair point. On the other hand, any user code that uses > these fields explicitly may already be broken, since the current names > of these fields rather strongly imply that they do something. > > Is there any clear policy on minor API breaks in the UAPI headers that > don't affect ABI? >
There really isn't, and this *definitely* a boundary case: as you state, it is very likely that anyone currently using them are doing so incorrectly, but it does induce potential source-level breakage. Linus, do you have any guidance here? -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/