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From: Kees Cook <keescook@chromium.org>
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: "Vlastimil Babka" <vbabka@suse.cz>,
	"Pekka Enberg" <penberg@kernel.org>,
	"David Rientjes" <rientjes@google.com>,
	"Joonsoo Kim" <iamjoonsoo.kim@lge.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Nick Desaulniers" <ndesaulniers@google.com>,
	"Hao Luo" <haoluo@google.com>, "Marco Elver" <elver@google.com>,
	linux-mm@kvack.org, "David S. Miller" <davem@davemloft.net>,
	"Eric Dumazet" <edumazet@google.com>,
	"Jakub Kicinski" <kuba@kernel.org>,
	"Paolo Abeni" <pabeni@redhat.com>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Alex Elder" <elder@kernel.org>,
	"Josef Bacik" <josef@toxicpanda.com>,
	"David Sterba" <dsterba@suse.com>,
	"Sumit Semwal" <sumit.semwal@linaro.org>,
	"Christian König" <christian.koenig@amd.com>,
	"Jesse Brandeburg" <jesse.brandeburg@intel.com>,
	"Daniel Micay" <danielmicay@gmail.com>,
	"Yonghong Song" <yhs@fb.com>, "Miguel Ojeda" <ojeda@kernel.org>,
	"Feng Tang" <feng.tang@intel.com>,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	linux-btrfs@vger.kernel.org, linux-media@vger.kernel.org,
	dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org,
	linux-fsdevel@vger.kernel.org, intel-wired-lan@lists.osuosl.org,
	dev@openvswitch.org, x86@kernel.org,
	linux-wireless@vger.kernel.org, llvm@lists.linux.dev,
	linux-hardening@vger.kernel.org
Subject: Re: [PATCH 11/12] slab: Remove __malloc attribute from realloc functions
Date: Thu, 22 Sep 2022 08:56:35 -0700	[thread overview]
Message-ID: <202209220855.B8DA16E@keescook> (raw)
In-Reply-To: <CANiq72=m9VngFH9jE3s0RV7MpjX0a=ekJN4pZwcDksBkSRR_1w@mail.gmail.com>

On Thu, Sep 22, 2022 at 11:23:46AM +0200, Miguel Ojeda wrote:
> On Thu, Sep 22, 2022 at 5:10 AM Kees Cook <keescook@chromium.org> wrote:
> >
> > -#ifdef __alloc_size__
> > -# define __alloc_size(x, ...)  __alloc_size__(x, ## __VA_ARGS__) __malloc
> > -#else
> > -# define __alloc_size(x, ...)  __malloc
> > -#endif
> > +#define __alloc_size(x, ...)   __alloc_size__(x, ## __VA_ARGS__) __malloc
> > +#define __realloc_size(x, ...) __alloc_size__(x, ## __VA_ARGS__)
> 
> These look unconditional now, so we could move it to
> `compiler_attributes.h` in a later patch (or an independent series).

I wasn't sure if this "composite macro" was sane there, especially since
it would be using __malloc before it was defined, etc. Would you prefer
I move it?

-- 
Kees Cook

  reply	other threads:[~2022-09-22 15:56 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-22  3:10 [PATCH 00/12] slab: Introduce kmalloc_size_roundup() Kees Cook
2022-09-22  3:10 ` [PATCH 01/12] " Kees Cook
2022-09-22 11:12   ` Hyeonggon Yoo
2022-09-23  1:17     ` Feng Tang
2022-09-23 18:50       ` Kees Cook
2022-09-22  3:10 ` [PATCH 02/12] skbuff: Proactively round up to kmalloc bucket size Kees Cook
2022-09-22 19:40   ` Jakub Kicinski
2022-09-22  3:10 ` [PATCH 03/12] net: ipa: " Kees Cook
2022-09-22 13:45   ` Alex Elder
2022-09-22 15:57     ` Kees Cook
2022-09-22  3:10 ` [PATCH 04/12] btrfs: send: " Kees Cook
2022-09-22 13:30   ` David Sterba
2022-09-22  3:10 ` [PATCH 05/12] dma-buf: " Kees Cook
2022-09-22  3:10 ` [PATCH 06/12] coredump: " Kees Cook
2022-09-22  3:10 ` [PATCH 07/12] igb: " Kees Cook
2022-09-22 15:56   ` Ruhl, Michael J
2022-09-22 16:00     ` Kees Cook
2022-09-22  3:10 ` [PATCH 08/12] openvswitch: " Kees Cook
2022-09-22  3:10 ` [PATCH 09/12] x86/microcode/AMD: Track patch allocation size explicitly Kees Cook
2022-09-22  3:10 ` [PATCH 10/12] iwlwifi: Track scan_cmd " Kees Cook
2022-09-22  4:18   ` Kalle Valo
2022-09-22  5:26     ` Kees Cook
2022-09-22  3:10 ` [PATCH 11/12] slab: Remove __malloc attribute from realloc functions Kees Cook
2022-09-22  9:23   ` Miguel Ojeda
2022-09-22 15:56     ` Kees Cook [this message]
2022-09-22 17:41       ` Miguel Ojeda
2022-09-22  3:10 ` [PATCH 12/12] slab: Restore __alloc_size attribute to __kmalloc_track_caller Kees Cook
2022-09-22  7:10 ` [PATCH 00/12] slab: Introduce kmalloc_size_roundup() Christian König
2022-09-22 15:55   ` Kees Cook
2022-09-22 21:05     ` Vlastimil Babka
2022-09-22 21:49       ` Kees Cook
2022-09-23  9:07         ` Vlastimil Babka

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