[PATCH 10/17] ARM: s3c24xx: fix multiple section mismatch warnings

From: Arnd Bergmann
Date: Tue Oct 02 2012 - 12:41:42 EST


The *_irq_add function should not be marked __init because the driver
subsystem thinks they might be called at a later stage.

The usb_simtec_init function accesses initdata and should be marked
init. This is safe because the only caller is also an init function.

Without this patch, building s3c2410_defconfig results in:

WARNING: arch/arm/mach-s3c24xx/built-in.o(.data+0x1030): Section mismatch in reference from the variable s3c2416_irq_interface to the function .init.text:s3c2416_irq_add()
The variable s3c2416_irq_interface references
the function __init s3c2416_irq_add()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console

WARNING: arch/arm/mach-s3c24xx/built-in.o(.data+0x1b08): Section mismatch in reference from the variable s3c2443_irq_interface to the function .init.text:s3c2443_irq_add()
The variable s3c2443_irq_interface references
the function __init s3c2443_irq_add()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console

WARNING: arch/arm/mach-s3c24xx/built-in.o(.data+0xf44): Section mismatch in reference from the variable s3c2416_irq_interface to the function .init.text:s3c2416_irq_add()
The variable s3c2416_irq_interface references
the function __init s3c2416_irq_add()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console

WARNING: arch/arm/mach-s3c24xx/built-in.o(.text+0x3f7c): Section mismatch in reference from the function usb_simtec_init() to the (unknown reference) .init.data:(unknown)
The function usb_simtec_init() references
the (unknown reference) __initdata (unknown).
This is often because usb_simtec_init lacks a __initdata
annotation or the annotation of (unknown) is wrong.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Ben Dooks <ben-linux@xxxxxxxxx>
Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
---
arch/arm/mach-s3c24xx/irq-s3c2416.c | 6 +++---
arch/arm/mach-s3c24xx/irq-s3c2443.c | 4 ++--
arch/arm/mach-s3c24xx/simtec-usb.c | 2 +-
3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-s3c24xx/irq-s3c2416.c b/arch/arm/mach-s3c24xx/irq-s3c2416.c
index 23ec973..ff141b0 100644
--- a/arch/arm/mach-s3c24xx/irq-s3c2416.c
+++ b/arch/arm/mach-s3c24xx/irq-s3c2416.c
@@ -232,7 +232,7 @@ struct irq_chip s3c2416_irq_second = {

/* IRQ initialisation code */

-static int __init s3c2416_add_sub(unsigned int base,
+static int s3c2416_add_sub(unsigned int base,
void (*demux)(unsigned int,
struct irq_desc *),
struct irq_chip *chip,
@@ -251,7 +251,7 @@ static int __init s3c2416_add_sub(unsigned int base,
return 0;
}

-static void __init s3c2416_irq_add_second(void)
+static void s3c2416_irq_add_second(void)
{
unsigned long pend;
unsigned long last;
@@ -287,7 +287,7 @@ static void __init s3c2416_irq_add_second(void)
}
}

-static int __init s3c2416_irq_add(struct device *dev,
+static int s3c2416_irq_add(struct device *dev,
struct subsys_interface *sif)
{
printk(KERN_INFO "S3C2416: IRQ Support\n");
diff --git a/arch/arm/mach-s3c24xx/irq-s3c2443.c b/arch/arm/mach-s3c24xx/irq-s3c2443.c
index ac2829f..5e69109 100644
--- a/arch/arm/mach-s3c24xx/irq-s3c2443.c
+++ b/arch/arm/mach-s3c24xx/irq-s3c2443.c
@@ -222,7 +222,7 @@ static struct irq_chip s3c2443_irq_cam = {

/* IRQ initialisation code */

-static int __init s3c2443_add_sub(unsigned int base,
+static int s3c2443_add_sub(unsigned int base,
void (*demux)(unsigned int,
struct irq_desc *),
struct irq_chip *chip,
@@ -241,7 +241,7 @@ static int __init s3c2443_add_sub(unsigned int base,
return 0;
}

-static int __init s3c2443_irq_add(struct device *dev,
+static int s3c2443_irq_add(struct device *dev,
struct subsys_interface *sif)
{
printk("S3C2443: IRQ Support\n");
diff --git a/arch/arm/mach-s3c24xx/simtec-usb.c b/arch/arm/mach-s3c24xx/simtec-usb.c
index d91c1a7..c303d1b 100644
--- a/arch/arm/mach-s3c24xx/simtec-usb.c
+++ b/arch/arm/mach-s3c24xx/simtec-usb.c
@@ -104,7 +104,7 @@ static struct s3c2410_hcd_info usb_simtec_info __initdata = {
};


-int usb_simtec_init(void)
+int __init usb_simtec_init(void)
{
int ret;

--
1.7.10

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