[PATCH v3 0/2] kernel.h: container_of() pointer checking

From	Ian Abbott <abbotti@mev.co.uk>
Newsgroups	linux.kernel
Subject	[PATCH v3 0/2] kernel.h: container_of() pointer checking
Date	2017-05-23 18:00 +0200
Message-ID	<tKko1-5cc-5@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Show all headers | View 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(-)

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH v3 0/2] kernel.h: container_of() pointer checking Ian Abbott <abbotti@mev.co.uk> - 2017-05-23 18:00 +0200

csiph-web