(+ Arnd, Eric) On 18 September 2018 at 09:16, Jason A. Donenfeld <Jason@xxxxxxxxx> wrote: ... > diff --git a/lib/zinc/Makefile b/lib/zinc/Makefile > new file mode 100644 > index 000000000000..83dfd63988c0 > --- /dev/null > +++ b/lib/zinc/Makefile > @@ -0,0 +1,4 @@ Apologies for not spotting these before: > +ccflags-y := -O3 -O3 optimization has been problematic in the past, at least on x86 but I think on other architectures as well. Please stick with -O2. > +ccflags-y += -Wframe-larger-than=$(if (CONFIG_KASAN),16384,8192) There is no way we can support code in the kernel with that kind of stack space requirements. I will let Arnd comment on what we typically allow, since he deals with such issues on a regular basis. > +ccflags-y += -D'pr_fmt(fmt)="zinc: " fmt' > +ccflags-$(CONFIG_ZINC_DEBUG) += -DDEBUG > -- > 2.19.0 >