* [PATCH] hwtracing: intel_th: make intel_th_bus const
@ 2025-09-18 13:39 Adrian Barnaś
2025-09-18 16:19 ` Greg Kroah-Hartman
0 siblings, 1 reply; 2+ messages in thread
From: Adrian Barnaś @ 2025-09-18 13:39 UTC (permalink / raw)
To: Alexander Shishkin, linux-kernel; +Cc: Greg Kroah-Hartman, Adrian Barnaś
Because driver core can properly handle constant struct bus_type,
move the intel_th_bus to be a constant structure as well, placing it into
read-only memory which can not be modified at runtime.
Signed-off-by: Adrian Barnaś <abarnas@google.com>
---
drivers/hwtracing/intel_th/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
index 47d9e6c3bac0..ba7c8b184cbc 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -166,7 +166,7 @@ static void intel_th_remove(struct device *dev)
pm_runtime_enable(dev);
}
-static struct bus_type intel_th_bus = {
+static const struct bus_type intel_th_bus = {
.name = "intel_th",
.match = intel_th_match,
.probe = intel_th_probe,
--
2.51.0.470.ga7dc726c21-goog
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] hwtracing: intel_th: make intel_th_bus const
2025-09-18 13:39 [PATCH] hwtracing: intel_th: make intel_th_bus const Adrian Barnaś
@ 2025-09-18 16:19 ` Greg Kroah-Hartman
0 siblings, 0 replies; 2+ messages in thread
From: Greg Kroah-Hartman @ 2025-09-18 16:19 UTC (permalink / raw)
To: Adrian Barnaś; +Cc: Alexander Shishkin, linux-kernel
On Thu, Sep 18, 2025 at 01:39:37PM +0000, Adrian Barnaś wrote:
> Because driver core can properly handle constant struct bus_type,
> move the intel_th_bus to be a constant structure as well, placing it into
> read-only memory which can not be modified at runtime.
>
> Signed-off-by: Adrian Barnaś <abarnas@google.com>
> ---
> drivers/hwtracing/intel_th/core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
> index 47d9e6c3bac0..ba7c8b184cbc 100644
> --- a/drivers/hwtracing/intel_th/core.c
> +++ b/drivers/hwtracing/intel_th/core.c
> @@ -166,7 +166,7 @@ static void intel_th_remove(struct device *dev)
> pm_runtime_enable(dev);
> }
>
> -static struct bus_type intel_th_bus = {
> +static const struct bus_type intel_th_bus = {
> .name = "intel_th",
> .match = intel_th_match,
> .probe = intel_th_probe,
> --
> 2.51.0.470.ga7dc726c21-goog
>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
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