summaryrefslogtreecommitdiff
path: root/drivers/hwtracing/intel_th
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-11 14:30:08 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-27 15:45:38 +0300
commita9b12f8b4e3309c4c25d39e7ab818943b9c48c1c (patch)
tree5ef52a709f8a123ac3f1357f55e9d2c3725931ef /drivers/hwtracing/intel_th
parent162736b0d71a9630f7c99dda7cefd5600fa03d69 (diff)
downloadlinux-a9b12f8b4e3309c4c25d39e7ab818943b9c48c1c.tar.xz
driver core: make struct device_type.devnode() take a const *
The devnode() callback in struct device_type should not be modifying the device that is passed into it, so mark it as a const * and propagate the function signature changes out into all relevant subsystems that use this callback. Cc: Jens Axboe <axboe@kernel.dk> Cc: Alison Schofield <alison.schofield@intel.com> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Ben Widawsky <bwidawsk@kernel.org> Cc: Jeremy Kerr <jk@ozlabs.org> Cc: Joel Stanley <joel@jms.id.au> Cc: Alistar Popple <alistair@popple.id.au> Cc: Eddie James <eajames@linux.ibm.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Jilin Yuan <yuanjilin@cdjrlc.com> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Won Chung <wonchung@google.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20230111113018.459199-7-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/intel_th')
-rw-r--r--drivers/hwtracing/intel_th/core.c6
-rw-r--r--drivers/hwtracing/intel_th/intel_th.h4
2 files changed, 5 insertions, 5 deletions
diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
index 7e753a75d23b..cc7f879bb175 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -185,11 +185,11 @@ static struct device_type intel_th_source_device_type = {
.release = intel_th_device_release,
};
-static char *intel_th_output_devnode(struct device *dev, umode_t *mode,
+static char *intel_th_output_devnode(const struct device *dev, umode_t *mode,
kuid_t *uid, kgid_t *gid)
{
- struct intel_th_device *thdev = to_intel_th_device(dev);
- struct intel_th *th = to_intel_th(thdev);
+ const struct intel_th_device *thdev = to_intel_th_device(dev);
+ const struct intel_th *th = to_intel_th(thdev);
char *node;
if (thdev->id >= 0)
diff --git a/drivers/hwtracing/intel_th/intel_th.h b/drivers/hwtracing/intel_th/intel_th.h
index 0ffb42990175..6cbba733f259 100644
--- a/drivers/hwtracing/intel_th/intel_th.h
+++ b/drivers/hwtracing/intel_th/intel_th.h
@@ -205,7 +205,7 @@ struct intel_th_driver {
* INTEL_TH_SWITCH and INTEL_TH_SOURCE are children of the intel_th device.
*/
static inline struct intel_th_device *
-to_intel_th_parent(struct intel_th_device *thdev)
+to_intel_th_parent(const struct intel_th_device *thdev)
{
struct device *parent = thdev->dev.parent;
@@ -215,7 +215,7 @@ to_intel_th_parent(struct intel_th_device *thdev)
return to_intel_th_device(parent);
}
-static inline struct intel_th *to_intel_th(struct intel_th_device *thdev)
+static inline struct intel_th *to_intel_th(const struct intel_th_device *thdev)
{
if (thdev->type == INTEL_TH_OUTPUT)
thdev = to_intel_th_parent(thdev);