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SubjectRe: [PATCH net-next v5 02/20] zinc: introduce minimal cryptography library
(+ Arnd, Eric)

On 18 September 2018 at 09:16, Jason A. Donenfeld <Jason@zx2c4.com> 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
>

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