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Date: Fri, 21 Sep 2018 02:17:45 +0200 From: "Jason A. Donenfeld" <Jason@...c4.com> To: Ard Biesheuvel <ard.biesheuvel@...aro.org> Cc: Arnd Bergmann <arnd@...db.de>, Eric Biggers <ebiggers@...gle.com>, LKML <linux-kernel@...r.kernel.org>, Netdev <netdev@...r.kernel.org>, Linux Crypto Mailing List <linux-crypto@...r.kernel.org>, David Miller <davem@...emloft.net>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Samuel Neves <sneves@....uc.pt>, Andrew Lutomirski <luto@...nel.org>, Jean-Philippe Aumasson <jeanphilippe.aumasson@...il.com> Subject: Re: [PATCH net-next v5 02/20] zinc: introduce minimal cryptography library Hi Ard, On Thu, Sep 20, 2018 at 5:42 PM Ard Biesheuvel <ard.biesheuvel@...aro.org> wrote: > 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. Fixed up for v6. > > > +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. Also fixed up for v6 by just removing that line entirely. Jason
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