From: Ian Abbott <abbotti@mev.co.uk>
To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Nazarewicz <mina86@mina86.com>,
Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>,
Borislav Petkov <bp@suse.de>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Johannes Berg <johannes.berg@intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Alexander Potapenko <glider@google.com>
Subject: [PATCH v3 0/2] kernel.h: container_of() pointer checking
Date: Tue, 23 May 2017 16:53:40 +0100 [thread overview]
Message-ID: <20170523155342.3244-1-abbotti@mev.co.uk> (raw)
[Apologies for the resend. I got both mailing list addresses wrong!]
Patch 2 changes the container_of() macro to improve the compatibility
checking when the member has array type. As a bonus (?), if the pointer
neither points to a type compatible with the member nor points to a type
compatible with void, compiler errors are produced instead of warnings.
Patch 1 is a prerequisite to avoid a lot of warnings when <linux/bug.h>
is included by <linux/kernel.h>.
1) asm-generic/bug.h: declare struct pt_regs; before function prototype
2) kernel.h: handle pointers to arrays better in container_of()
include/asm-generic/bug.h | 1 +
include/linux/kernel.h | 9 ++++++---
2 files changed, 7 insertions(+), 3 deletions(-)
next reply other threads:[~2017-05-23 15:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-23 15:53 Ian Abbott [this message]
2017-05-23 15:53 ` [PATCH v3 1/2] asm-generic/bug.h: declare struct pt_regs; before function prototype Ian Abbott
2017-05-23 15:53 ` [PATCH v3 2/2] kernel.h: handle pointers to arrays better in container_of() Ian Abbott
2017-05-24 14:29 ` kbuild test robot
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