diff mbox

clk: samsung: mark s3c...._clk_sleep_init() as __init

Message ID 1485293599-23581-1-git-send-email-martin@kaiser.cx (mailing list archive)
State Superseded
Headers show

Commit Message

Martin Kaiser Jan. 24, 2017, 9:33 p.m. UTC
These functions are called only by other __init functions.
Compiling for s3c2410 with CONFIG_DEBUG_SECTION_MISMATCH=y,
I get warnings like

WARNING: vmlinux.o(.text+0x198350):
Section mismatch in reference from the function s3c2410_clk_sleep_init()
to the (unknown reference) .init.data:(unknown)

Marking the s3c...._clk_sleep() functions as __init fixes this.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
---
 drivers/clk/samsung/clk-s3c2410.c | 4 ++--
 drivers/clk/samsung/clk-s3c2412.c | 4 ++--
 drivers/clk/samsung/clk-s3c2443.c | 4 ++--
 drivers/clk/samsung/clk-s3c64xx.c | 4 ++--
 4 files changed, 8 insertions(+), 8 deletions(-)

Comments

Chanwoo Choi Jan. 25, 2017, 12:35 a.m. UTC | #1
Hi Martin,

On 2017년 01월 25일 06:33, Martin Kaiser wrote:
> These functions are called only by other __init functions.
> Compiling for s3c2410 with CONFIG_DEBUG_SECTION_MISMATCH=y,
> I get warnings like
> 
> WARNING: vmlinux.o(.text+0x198350):
> Section mismatch in reference from the function s3c2410_clk_sleep_init()
> to the (unknown reference) .init.data:(unknown)
> 
> Marking the s3c...._clk_sleep() functions as __init fixes this.
> 
> Signed-off-by: Martin Kaiser <martin@kaiser.cx>
> ---
>  drivers/clk/samsung/clk-s3c2410.c | 4 ++--
>  drivers/clk/samsung/clk-s3c2412.c | 4 ++--
>  drivers/clk/samsung/clk-s3c2443.c | 4 ++--
>  drivers/clk/samsung/clk-s3c64xx.c | 4 ++--
>  4 files changed, 8 insertions(+), 8 deletions(-)


Looks good to me.
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>

[snip]
Krzysztof Kozlowski Jan. 25, 2017, 8:30 a.m. UTC | #2
On Tue, Jan 24, 2017 at 11:33 PM, Martin Kaiser <martin@kaiser.cx> wrote:
> These functions are called only by other __init functions.
> Compiling for s3c2410 with CONFIG_DEBUG_SECTION_MISMATCH=y,
> I get warnings like
>
> WARNING: vmlinux.o(.text+0x198350):
> Section mismatch in reference from the function s3c2410_clk_sleep_init()
> to the (unknown reference) .init.data:(unknown)
>

The code looks okay but the description is not accurate. First, indeed
the functions are referenced only from other __init. However the real
problem is - pointed by section mismatch - that non-init functions are
referencing __initdata. Exactly this is mentioned in the error above.
Please, refactor the commit message to reflect the real problem.

Best regards,
Krzysztof

> Marking the s3c...._clk_sleep() functions as __init fixes this.
>
> Signed-off-by: Martin Kaiser <martin@kaiser.cx>
> ---
>  drivers/clk/samsung/clk-s3c2410.c | 4 ++--
>  drivers/clk/samsung/clk-s3c2412.c | 4 ++--
>  drivers/clk/samsung/clk-s3c2443.c | 4 ++--
>  drivers/clk/samsung/clk-s3c64xx.c | 4 ++--
>  4 files changed, 8 insertions(+), 8 deletions(-)
>
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diff mbox

Patch

diff --git a/drivers/clk/samsung/clk-s3c2410.c b/drivers/clk/samsung/clk-s3c2410.c
index d7a1e77..e0650c3 100644
--- a/drivers/clk/samsung/clk-s3c2410.c
+++ b/drivers/clk/samsung/clk-s3c2410.c
@@ -76,7 +76,7 @@  static struct syscore_ops s3c2410_clk_syscore_ops = {
 	.resume = s3c2410_clk_resume,
 };
 
-static void s3c2410_clk_sleep_init(void)
+static void __init s3c2410_clk_sleep_init(void)
 {
 	s3c2410_save = samsung_clk_alloc_reg_dump(s3c2410_clk_regs,
 						ARRAY_SIZE(s3c2410_clk_regs));
@@ -90,7 +90,7 @@  static void s3c2410_clk_sleep_init(void)
 	return;
 }
 #else
-static void s3c2410_clk_sleep_init(void) {}
+static void __init s3c2410_clk_sleep_init(void) {}
 #endif
 
 PNAME(fclk_p) = { "mpll", "div_slow" };
diff --git a/drivers/clk/samsung/clk-s3c2412.c b/drivers/clk/samsung/clk-s3c2412.c
index ec873ee..b8340a4 100644
--- a/drivers/clk/samsung/clk-s3c2412.c
+++ b/drivers/clk/samsung/clk-s3c2412.c
@@ -69,7 +69,7 @@  static struct syscore_ops s3c2412_clk_syscore_ops = {
 	.resume = s3c2412_clk_resume,
 };
 
-static void s3c2412_clk_sleep_init(void)
+static void __init s3c2412_clk_sleep_init(void)
 {
 	s3c2412_save = samsung_clk_alloc_reg_dump(s3c2412_clk_regs,
 						ARRAY_SIZE(s3c2412_clk_regs));
@@ -83,7 +83,7 @@  static void s3c2412_clk_sleep_init(void)
 	return;
 }
 #else
-static void s3c2412_clk_sleep_init(void) {}
+static void __init s3c2412_clk_sleep_init(void) {}
 #endif
 
 static struct clk_div_table divxti_d[] = {
diff --git a/drivers/clk/samsung/clk-s3c2443.c b/drivers/clk/samsung/clk-s3c2443.c
index 5e24a17..abb935c 100644
--- a/drivers/clk/samsung/clk-s3c2443.c
+++ b/drivers/clk/samsung/clk-s3c2443.c
@@ -89,7 +89,7 @@  static struct syscore_ops s3c2443_clk_syscore_ops = {
 	.resume = s3c2443_clk_resume,
 };
 
-static void s3c2443_clk_sleep_init(void)
+static void __init s3c2443_clk_sleep_init(void)
 {
 	s3c2443_save = samsung_clk_alloc_reg_dump(s3c2443_clk_regs,
 						ARRAY_SIZE(s3c2443_clk_regs));
@@ -103,7 +103,7 @@  static void s3c2443_clk_sleep_init(void)
 	return;
 }
 #else
-static void s3c2443_clk_sleep_init(void) {}
+static void __init s3c2443_clk_sleep_init(void) {}
 #endif
 
 PNAME(epllref_p) = { "mpllref", "mpllref", "xti", "ext" };
diff --git a/drivers/clk/samsung/clk-s3c64xx.c b/drivers/clk/samsung/clk-s3c64xx.c
index a48bd5f..7306867 100644
--- a/drivers/clk/samsung/clk-s3c64xx.c
+++ b/drivers/clk/samsung/clk-s3c64xx.c
@@ -121,7 +121,7 @@  static struct syscore_ops s3c64xx_clk_syscore_ops = {
 	.resume = s3c64xx_clk_resume,
 };
 
-static void s3c64xx_clk_sleep_init(void)
+static void __init s3c64xx_clk_sleep_init(void)
 {
 	s3c64xx_save_common = samsung_clk_alloc_reg_dump(s3c64xx_clk_regs,
 						ARRAY_SIZE(s3c64xx_clk_regs));
@@ -145,7 +145,7 @@  static void s3c64xx_clk_sleep_init(void)
 		__func__);
 }
 #else
-static void s3c64xx_clk_sleep_init(void) {}
+static void __init s3c64xx_clk_sleep_init(void) {}
 #endif
 
 /* List of parent clocks common for all S3C64xx SoCs. */