Re: [PATCH v2] module: Fix selfAssignment cppcheck warning

From: Luis Chamberlain
Date: Fri Jul 01 2022 - 17:46:03 EST


On Sun, Jun 12, 2022 at 05:21:56PM +0200, Christophe Leroy wrote:
> cppcheck reports the following warnings:
>
> kernel/module/main.c:1455:26: warning: Redundant assignment of 'mod->core_layout.size' to itself. [selfAssignment]
> mod->core_layout.size = strict_align(mod->core_layout.size);
> ^
> kernel/module/main.c:1489:26: warning: Redundant assignment of 'mod->init_layout.size' to itself. [selfAssignment]
> mod->init_layout.size = strict_align(mod->init_layout.size);
> ^
> kernel/module/main.c:1493:26: warning: Redundant assignment of 'mod->init_layout.size' to itself. [selfAssignment]
> mod->init_layout.size = strict_align(mod->init_layout.size);
> ^
> kernel/module/main.c:1504:26: warning: Redundant assignment of 'mod->init_layout.size' to itself. [selfAssignment]
> mod->init_layout.size = strict_align(mod->init_layout.size);
> ^
> kernel/module/main.c:1459:26: warning: Redundant assignment of 'mod->data_layout.size' to itself. [selfAssignment]
> mod->data_layout.size = strict_align(mod->data_layout.size);
> ^
> kernel/module/main.c:1463:26: warning: Redundant assignment of 'mod->data_layout.size' to itself. [selfAssignment]
> mod->data_layout.size = strict_align(mod->data_layout.size);
> ^
> kernel/module/main.c:1467:26: warning: Redundant assignment of 'mod->data_layout.size' to itself. [selfAssignment]
> mod->data_layout.size = strict_align(mod->data_layout.size);
> ^
>
> This is due to strict_align() being a no-op when
> CONFIG_STRICT_MODULE_RWX is not selected.
>
> Transform strict_align() macro into an inline function. It will
> allow type checking and avoid the selfAssignment warning.
>
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>

Queued up thanks!

Luis