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From: Nick Desaulniers <ndesaulniers@google.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	apw@canonical.com, Christoph Lameter <cl@linux.com>,
	Daniel Micay <danielmicay@gmail.com>,
	Dennis Zhou <dennis@kernel.org>,
	dwaipayanray1@gmail.com, Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Joe Perches <joe@perches.com>, Kees Cook <keescook@chromium.org>,
	Linux-MM <linux-mm@kvack.org>,
	Lukas Bulwahn <lukas.bulwahn@gmail.com>,
	mm-commits@vger.kernel.org, Nathan Chancellor <nathan@kernel.org>,
	Miguel Ojeda <ojeda@kernel.org>,
	Pekka Enberg <penberg@kernel.org>,
	David Rientjes <rientjes@google.com>, Tejun Heo <tj@kernel.org>,
	Vlastimil Babka <vbabka@suse.cz>
Subject: Re: [patch 9/9] mm/vmalloc: add __alloc_size attributes for better bounds checking
Date: Fri, 10 Sep 2021 12:49:08 -0700	[thread overview]
Message-ID: <CAKwvOd=quUcE8UBcwD6Hjs40LNKodHEwAfqt=_OjNdwYM19LOA@mail.gmail.com> (raw)
In-Reply-To: <CAHk-=wgfbSyW6QYd5rmhSHRoOQ=ZvV+jLn1U8U4nBDgBuaOAjQ@mail.gmail.com>

On Fri, Sep 10, 2021 at 10:24 AM Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> On Thu, Sep 9, 2021 at 8:10 PM Andrew Morton <akpm@linux-foundation.org> wrote:
> >
> > +__alloc_size(1)
> >  extern void *vmalloc(unsigned long size);
> [...]
>
> All of these are added in the wrong place

Huh?
$ grep -rn __always_inline
$ grep -rn noinline
$ grep -rn __cold
...

Not that we have explicit guidance here in any coding style guide,
perhaps we can make a clarification in
Documentation/process/coding-style.rst?

I'd say when using function attributes, we tend to have the linkage
(ie. explicitly static or implicitly extern), followed by function
attributes related to inlining (__always_inline, noinline), followed
by return type, followed by function level attributes, followed by
parameter list. But I don't think we're even internally consistent
here.
-- 
Thanks,
~Nick Desaulniers

  parent reply	other threads:[~2021-09-10 19:49 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-10  3:09 incoming Andrew Morton
2021-09-10  3:10 ` [patch 1/9] mm: move kvmalloc-related functions to slab.h Andrew Morton
2021-09-10  3:10 ` [patch 2/9] rapidio: avoid bogus __alloc_size warning Andrew Morton
2021-09-10  3:10 ` [patch 3/9] Compiler Attributes: add __alloc_size() for better bounds checking Andrew Morton
2021-09-10  3:10 ` [patch 4/9] checkpatch: add __alloc_size() to known $Attribute Andrew Morton
2021-09-10  3:10 ` [patch 5/9] slab: clean up function declarations Andrew Morton
2021-09-10  3:10 ` [patch 6/9] slab: add __alloc_size attributes for better bounds checking Andrew Morton
2021-09-10  3:10 ` [patch 7/9] mm/page_alloc: " Andrew Morton
2021-09-10  3:10 ` [patch 8/9] percpu: " Andrew Morton
2021-09-10  3:10 ` [patch 9/9] mm/vmalloc: " Andrew Morton
2021-09-10 17:23   ` Linus Torvalds
2021-09-10 18:43     ` Kees Cook
2021-09-10 19:17       ` Linus Torvalds
2021-09-10 19:32         ` Kees Cook
2021-09-10 19:49     ` Nick Desaulniers [this message]
2021-09-10 20:16       ` Linus Torvalds
2021-09-10 20:47         ` Kees Cook
2021-09-10 20:58           ` Nick Desaulniers
2021-09-10 21:07             ` Kees Cook
2021-09-11  5:29     ` Joe Perches
2021-09-21 23:37     ` Kees Cook
2021-09-21 23:45       ` Joe Perches
2021-09-22  2:25         ` function prototype element ordering Kees Cook
2021-09-22  4:24           ` Joe Perches
2021-09-24 19:43             ` Kees Cook
2021-09-22  7:24           ` Alexey Dobriyan
2021-09-22  8:51             ` Joe Perches
2021-09-22 10:45               ` Alexey Dobriyan
2021-09-22 11:19             ` Jani Nikula
2021-09-22 21:15             ` Linus Torvalds
2021-09-23  5:10               ` Joe Perches
2021-09-25 19:40               ` David Laight
2021-09-26 21:03                 ` Linus Torvalds
2021-09-27  8:21                   ` David Laight
2021-09-27  9:22                     ` Willy Tarreau
2021-09-10 17:11 ` incoming Kees Cook
2021-09-10 20:13   ` incoming Kees Cook

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