From: Andrew Morton <akpm@linux-foundation.org>
To: Shyam Saini <shyam.saini@amarulasolutions.com>
Cc: kernel-hardening@lists.openwall.com,
linux-kernel@vger.kernel.org, keescook@chromium.org,
linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org,
intel-gvt-dev@lists.freedesktop.org,
intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
netdev@vger.kernel.org, linux-ext4@vger.kernel.org,
devel@lists.orangefs.org, linux-mm@kvack.org,
linux-sctp@vger.kernel.org, bpf@vger.kernel.org,
kvm@vger.kernel.org, mayhs11saini@gmail.com,
Alexey Dobriyan <adobriyan@gmail.com>
Subject: Re: [PATCH V2] include: linux: Regularise the use of FIELD_SIZEOF macro
Date: Tue, 11 Jun 2019 13:48:31 -0700 [thread overview]
Message-ID: <20190611134831.a60c11f4b691d14d04a87e29@linux-foundation.org> (raw)
In-Reply-To: <20190611193836.2772-1-shyam.saini@amarulasolutions.com>
On Wed, 12 Jun 2019 01:08:36 +0530 Shyam Saini <shyam.saini@amarulasolutions.com> wrote:
> Currently, there are 3 different macros, namely sizeof_field, SIZEOF_FIELD
> and FIELD_SIZEOF which are used to calculate the size of a member of
> structure, so to bring uniformity in entire kernel source tree lets use
> FIELD_SIZEOF and replace all occurrences of other two macros with this.
>
> For this purpose, redefine FIELD_SIZEOF in include/linux/stddef.h and
> tools/testing/selftests/bpf/bpf_util.h and remove its defination from
> include/linux/kernel.h
>
> In favour of FIELD_SIZEOF, this patch also deprecates other two similar
> macros sizeof_field and SIZEOF_FIELD.
>
> For code compatibility reason, retain sizeof_field macro as a wrapper macro
> to FIELD_SIZEOF
As Alexey has pointed out, C structs and unions don't have fields -
they have members. So this is an opportunity to switch everything to
a new member_sizeof().
What do people think of that and how does this impact the patch footprint?
next prev parent reply other threads:[~2019-06-11 20:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-11 19:38 [PATCH V2] include: linux: Regularise the use of FIELD_SIZEOF macro Shyam Saini
2019-06-11 20:46 ` Kees Cook
2019-06-11 21:05 ` Shyam Saini
2019-06-11 20:48 ` Andrew Morton [this message]
2019-06-11 21:00 ` Andreas Dilger
2019-06-11 21:09 ` Andrew Morton
2019-06-11 21:27 ` Shyam Saini
2019-06-11 21:28 ` Andreas Dilger
2019-06-29 14:25 ` Alexey Dobriyan
2019-06-29 16:45 ` Joe Perches
2019-07-02 16:33 ` Kees Cook
2019-06-12 0:05 ` Alexei Starovoitov
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