2024-02-11 15:42:04

by Ricardo B. Marliere

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Subject: [PATCH] ARM: s3c64xx: make s3c6410_subsys const

Now that the driver core can properly handle constant struct bus_type,
move the s3c6410_subsys variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <[email protected]>
Suggested-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Ricardo B. Marliere <[email protected]>
---
arch/arm/mach-s3c/cpu.h | 2 +-
arch/arm/mach-s3c/s3c6410.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-s3c/cpu.h b/arch/arm/mach-s3c/cpu.h
index d0adc9b40e25..a0187606b999 100644
--- a/arch/arm/mach-s3c/cpu.h
+++ b/arch/arm/mach-s3c/cpu.h
@@ -76,6 +76,6 @@ extern void s3c24xx_init_uartdevs(char *name,
struct s3c24xx_uart_resources *res,
struct s3c2410_uartcfg *cfg, int no);

-extern struct bus_type s3c6410_subsys;
+extern const struct bus_type s3c6410_subsys;

#endif
diff --git a/arch/arm/mach-s3c/s3c6410.c b/arch/arm/mach-s3c/s3c6410.c
index e79f18d0ca81..a29276a4fde5 100644
--- a/arch/arm/mach-s3c/s3c6410.c
+++ b/arch/arm/mach-s3c/s3c6410.c
@@ -57,7 +57,7 @@ void __init s3c6410_init_irq(void)
s3c64xx_init_irq(~0 & ~(1 << 7), ~0);
}

-struct bus_type s3c6410_subsys = {
+const struct bus_type s3c6410_subsys = {
.name = "s3c6410-core",
.dev_name = "s3c6410-core",
};

---
base-commit: fee3a71dc8d26629e5d87e20cff08763f522633f
change-id: 20240211-bus_cleanup-arm-da0f2550ca48

Best regards,
--
Ricardo B. Marliere <[email protected]>



2024-02-11 15:45:36

by Krzysztof Kozlowski

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Subject: Re: [PATCH] ARM: s3c64xx: make s3c6410_subsys const

On 11/02/2024 16:41, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,

This "Now" was confusing last time and is still... There is often no
"Now" in multi-tree-repo-approach. If the patch allows it went through
different tree, this is still false. If this was already merged into
mainline, just say since which commit or which release.

I raised my concerns last time, so please fix all your future patches
after receiving such feedback.



Best regards,
Krzysztof


2024-02-12 07:14:45

by Ricardo B. Marliere

[permalink] [raw]
Subject: Re: [PATCH] ARM: s3c64xx: make s3c6410_subsys const

Hi Krzysztof,

On 11 Feb 16:45, Krzysztof Kozlowski wrote:
> On 11/02/2024 16:41, Ricardo B. Marliere wrote:
> > Now that the driver core can properly handle constant struct bus_type,
>
> This "Now" was confusing last time and is still... There is often no
> "Now" in multi-tree-repo-approach. If the patch allows it went through
> different tree, this is still false. If this was already merged into
> mainline, just say since which commit or which release.
>
> I raised my concerns last time, so please fix all your future patches
> after receiving such feedback.

You're right, I'll keep this in mind. Will send a v2.

Thanks for reviewing,
- Ricardo.


>
>
>
> Best regards,
> Krzysztof
>