[PATCH] ARM: OMAP: Fix section mismatch warnings in omap-rng

[PATCH] ARM: OMAP: Fix section mismatch warnings in omap-rng

[Dirk Behme]

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ARM: OMAP: Fix warnings

WARNING: drivers/char/hw_random/omap-rng.o - Section
mismatch: reference to .init.text: from .data between '$d'
(at offset 0x0) and 'omap_rng_ops'
WARNING: drivers/char/hw_random/omap-rng.o - Section
mismatch: reference to .exit.text: from .data between '$d'
(at offset 0x4) and 'omap_rng_ops'

Signed-off-by: Dirk Behme <dirk.behme_at_gmail.com>

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Index: linux-osk/drivers/char/hw_random/omap-rng.c
===================================================================
--- linux-osk.orig/drivers/char/hw_random/omap-rng.c
+++ linux-osk/drivers/char/hw_random/omap-rng.c
@@ -83,7 +83,7 @@ static struct hwrng omap_rng_ops = {
 	.data_read	= omap_rng_data_read,
 };
 
-static int __init omap_rng_probe(struct platform_device *pdev)
+static int __devinit omap_rng_probe(struct platform_device *pdev)
 {
 	struct resource *res, *mem;
 	int ret;
@@ -133,7 +133,7 @@ static int __init omap_rng_probe(struct 
 	return 0;
 }
 
-static int __exit omap_rng_remove(struct platform_device *pdev)
+static int __devexit omap_rng_remove(struct platform_device *pdev)
 {
 	struct resource *mem = dev_get_drvdata(&pdev->dev);
 


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Re: [PATCH] ARM: OMAP: Fix section mismatch warnings in omap-rng

[Dirk Behme]

Felipe Balbi wrote:
> Hello Dirk,
> 
> 
>>-static int __init omap_rng_probe(struct platform_device *pdev)
>>+static int __devinit omap_rng_probe(struct platform_device *pdev)
>>-static int __exit omap_rng_remove(struct platform_device *pdev)
>>+static int __devexit omap_rng_remove(struct platform_device *pdev)
> 
> 
> Actually, this will only be true if CONFIG_HOTPLUG is set to "y". This
> way __devinit is defined to "null".
> 
> If we set CONFIG_HOTPLUG to "n" the same Section mismatch issue will
> appear.

Ah, yes, I see. Anybody with a better patch for this?

Thanks

Dirk

Re: [PATCH] ARM: OMAP: Fix section mismatch warnings in omap-rng

[David Brownell]

> Ah, yes, I see. Anybody with a better patch for this?

How about this.

========	CUT HERE
Keep omap_rng_probe() out of its platform_driver, addressing a
section mismatch problem.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

Index: osk2/drivers/char/hw_random/omap-rng.c
===================================================================
--- osk2.orig/drivers/char/hw_random/omap-rng.c	2006-12-30 14:59:25.000000000 -0800
+++ osk2/drivers/char/hw_random/omap-rng.c	2007-01-04 09:55:58.000000000 -0800
@@ -179,7 +179,6 @@ static struct platform_driver omap_rng_d
 		.name		= "omap_rng",
 		.owner		= THIS_MODULE,
 	},
-	.probe		= omap_rng_probe,
 	.remove		= __exit_p(omap_rng_remove),
 	.suspend	= omap_rng_suspend,
 	.resume		= omap_rng_resume
@@ -190,7 +189,7 @@ static int __init omap_rng_init(void)
 	if (!cpu_is_omap16xx() && !cpu_is_omap24xx())
 		return -ENODEV;
 
-	return platform_driver_register(&omap_rng_driver);
+	return platform_driver_probe(&omap_rng_driver, omap_rng_probe);
 }
 
 static void __exit omap_rng_exit(void)

Re: [PATCH] ARM: OMAP: Fix section mismatch warnings in omap-rng

[Felipe Balbi]

Hello Dirk,

> -static int __init omap_rng_probe(struct platform_device *pdev)
> +static int __devinit omap_rng_probe(struct platform_device *pdev)
> -static int __exit omap_rng_remove(struct platform_device *pdev)
> +static int __devexit omap_rng_remove(struct platform_device *pdev)

Actually, this will only be true if CONFIG_HOTPLUG is set to "y". This
way __devinit is defined to "null".

If we set CONFIG_HOTPLUG to "n" the same Section mismatch issue will
appear.

Maybe this is not the better way to do it.

-- 
Best Regards,

Felipe Balbi
felipe.lima@indt.org.br

Nokia Institute of Technology - INdT
Kernel Developers Team

+55 92 8127 0839