linux-kernel - Re: linux-next: build failure after merge of the akpm-current tree

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Date:   Mon, 05 Jun 2017 09:34:31 -0400
From:   Daniel Micay <danielmicay@...il.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>
Subject: Re: linux-next: build failure after merge of the akpm-current tree

> It also probably finds more architecture-specific issues and may need
> compatibility fixes for them. I could mark it as compatible with only
> arm64 and x86(_64) since they're what I've tested to build and work at
> runtime and the compile-time errors could be turned into warnings for
> now, if it's mandatory that FORTIFY_SOURCE=y doesn't find problems at
> compile-time anywhere. If it's a warning, it will still catch the
> issue
> at runtime like the rest where the size isn't a constant.

I'm already leaving out intra-object overflow checks and the alloc_size
attributes in this initial submission to make it easier to land so
scaling it back a bit more (errors -> warnings, gating on archs) isn't a
problem if it's needed to get started.