Patchwork [3/4] powerpc: use subsys_initcall for Freescale Local Bus

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Submitter Paul Gortmaker
Date Jan. 13, 2014, 4:21 p.m.
Message ID <1389630113-7919-4-git-send-email-paul.gortmaker@windriver.com>
Download mbox | patch
Permalink /patch/310234/
State Not Applicable
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Comments

Paul Gortmaker - Jan. 13, 2014, 4:21 p.m.
The FSL_SOC option is bool, and hence this code is either
present or absent.  It will never be modular, so using
module_init as an alias for __initcall is rather misleading.

Fix this up now, so that we can relocate module_init from
init.h into module.h in the future.  If we don't do this, we'd
have to add module.h to obviously non-modular code, and that
would be a worse thing.

Note that direct use of __initcall is discouraged, vs. one
of the priority categorized subgroups.  As __initcall gets
mapped onto device_initcall, our use of subsys_initcall (which
makes sense for bus code) will thus change this registration
from level 6-device to level 4-subsys (i.e. slightly earlier).
However no observable impact of that small difference has
been observed during testing, or is expected.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 arch/powerpc/sysdev/fsl_lbc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
Scott Wood - Jan. 14, 2014, 10:56 p.m.
On Mon, 2014-01-13 at 11:21 -0500, Paul Gortmaker wrote:
> The FSL_SOC option is bool, and hence this code is either
> present or absent.  It will never be modular, so using
> module_init as an alias for __initcall is rather misleading.
> 
> Fix this up now, so that we can relocate module_init from
> init.h into module.h in the future.  If we don't do this, we'd
> have to add module.h to obviously non-modular code, and that
> would be a worse thing.
> 
> Note that direct use of __initcall is discouraged, vs. one
> of the priority categorized subgroups.  As __initcall gets
> mapped onto device_initcall, our use of subsys_initcall (which
> makes sense for bus code) will thus change this registration
> from level 6-device to level 4-subsys (i.e. slightly earlier).
> However no observable impact of that small difference has
> been observed during testing, or is expected.
> 
> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
> ---
>  arch/powerpc/sysdev/fsl_lbc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/powerpc/sysdev/fsl_lbc.c b/arch/powerpc/sysdev/fsl_lbc.c
> index 6bc5a546d49f..9f00e5f84abe 100644
> --- a/arch/powerpc/sysdev/fsl_lbc.c
> +++ b/arch/powerpc/sysdev/fsl_lbc.c
> @@ -388,4 +388,4 @@ static int __init fsl_lbc_init(void)
>  {
>  	return platform_driver_register(&fsl_lbc_ctrl_driver);
>  }
> -module_init(fsl_lbc_init);
> +subsys_initcall(fsl_lbc_init);

Acked-by: Scott Wood <scottwood@freescale.com>

-Scott

Patch

diff --git a/arch/powerpc/sysdev/fsl_lbc.c b/arch/powerpc/sysdev/fsl_lbc.c
index 6bc5a546d49f..9f00e5f84abe 100644
--- a/arch/powerpc/sysdev/fsl_lbc.c
+++ b/arch/powerpc/sysdev/fsl_lbc.c
@@ -388,4 +388,4 @@  static int __init fsl_lbc_init(void)
 {
 	return platform_driver_register(&fsl_lbc_ctrl_driver);
 }
-module_init(fsl_lbc_init);
+subsys_initcall(fsl_lbc_init);