[PATCH] dma: dma-sysfs: make dma_subsys const

From: Ricardo B. Marliere
Date: Sun Feb 04 2024 - 10:14:55 EST


Now that the driver core can properly handle constant struct bus_type,
move the dma_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@xxxxxxxxxxxxxxxxxxx>
Suggested-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ricardo B. Marliere <ricardo@xxxxxxxxxxxx>
---
arch/sh/drivers/dma/dma-sysfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sh/drivers/dma/dma-sysfs.c b/arch/sh/drivers/dma/dma-sysfs.c
index 431bc18f0a41..9f666280d80c 100644
--- a/arch/sh/drivers/dma/dma-sysfs.c
+++ b/arch/sh/drivers/dma/dma-sysfs.c
@@ -15,7 +15,7 @@
#include <linux/string.h>
#include <asm/dma.h>

-static struct bus_type dma_subsys = {
+static const struct bus_type dma_subsys = {
.name = "dma",
.dev_name = "dma",
};

---
base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d
change-id: 20240204-bus_cleanup-sh-6d3c136da6bb

Best regards,
--
Ricardo B. Marliere <ricardo@xxxxxxxxxxxx>