From 89b1b86fc77367fac470258acdf470ffe2edc8d4 Mon Sep 17 00:00:00 2001 From: "Ricardo B. Marliere" Date: Thu, 8 Feb 2024 16:37:19 -0300 Subject: [PATCH] iio: core: make iio_bus_type const Now that the driver core can properly handle constant struct bus_type, move the iio_bus_type 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 Suggested-by: Greg Kroah-Hartman Signed-off-by: Ricardo B. Marliere Acked-by: Nuno Sa Link: https://lore.kernel.org/r/20240208-bus_cleanup-iio-v1-1-4a167c3b5fb3@marliere.net Signed-off-by: Jonathan Cameron --- drivers/iio/industrialio-core.c | 2 +- include/linux/iio/iio.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index e8551a1636bac..9b2877fe86898 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -42,7 +42,7 @@ static DEFINE_IDA(iio_ida); static dev_t iio_devt; #define IIO_DEV_MAX 256 -struct bus_type iio_bus_type = { +const struct bus_type iio_bus_type = { .name = "iio", }; EXPORT_SYMBOL(iio_bus_type); diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index 4f89279e531cd..e370a7bb3300b 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -669,7 +669,7 @@ DEFINE_GUARD_COND(iio_claim_direct, _try, ({ int iio_device_claim_buffer_mode(struct iio_dev *indio_dev); void iio_device_release_buffer_mode(struct iio_dev *indio_dev); -extern struct bus_type iio_bus_type; +extern const struct bus_type iio_bus_type; /** * iio_device_put() - reference counted deallocation of struct device -- 2.30.2