* [PATCH] x86: mce: make mce_subsys const
@ 2024-02-04 14:32 Ricardo B. Marliere
2024-02-04 14:38 ` Greg Kroah-Hartman
0 siblings, 1 reply; 2+ messages in thread
From: Ricardo B. Marliere @ 2024-02-04 14:32 UTC (permalink / raw)
To: Tony Luck, Borislav Petkov, Thomas Gleixner, Ingo Molnar,
Dave Hansen, x86, H. Peter Anvin
Cc: linux-edac, linux-kernel, Greg Kroah-Hartman, Ricardo B. Marliere
Now that the driver core can properly handle constant struct bus_type,
move the mce_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 <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
---
arch/x86/kernel/cpu/mce/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 7b397370b4d6..9bb208ba7ff4 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -2399,7 +2399,7 @@ static void mce_enable_ce(void *all)
__mcheck_cpu_init_timer();
}
-static struct bus_type mce_subsys = {
+static const struct bus_type mce_subsys = {
.name = "machinecheck",
.dev_name = "machinecheck",
};
---
base-commit: edc8fc01f608108b0b7580cb2c29dfb5135e5f0e
change-id: 20240204-bus_cleanup-x86-f25892c614f8
Best regards,
--
Ricardo B. Marliere <ricardo@marliere.net>
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] x86: mce: make mce_subsys const
2024-02-04 14:32 [PATCH] x86: mce: make mce_subsys const Ricardo B. Marliere
@ 2024-02-04 14:38 ` Greg Kroah-Hartman
0 siblings, 0 replies; 2+ messages in thread
From: Greg Kroah-Hartman @ 2024-02-04 14:38 UTC (permalink / raw)
To: Ricardo B. Marliere
Cc: Tony Luck, Borislav Petkov, Thomas Gleixner, Ingo Molnar,
Dave Hansen, x86, H. Peter Anvin, linux-edac, linux-kernel
On Sun, Feb 04, 2024 at 11:32:29AM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the mce_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 <gregkh@linuxfoundation.org>
> Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
> ---
> arch/x86/kernel/cpu/mce/core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
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