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author | 2023-01-11 12:30:08 +0100 | |
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committer | 2023-01-27 13:45:38 +0100 | |
commit | a9b12f8b4e3309c4c25d39e7ab818943b9c48c1c (patch) | |
tree | 5ef52a709f8a123ac3f1357f55e9d2c3725931ef | |
parent | driver core: make struct device_type.uevent() take a const * (diff) | |
download | linux-a9b12f8b4e3309c4c25d39e7ab818943b9c48c1c.tar.gz linux-a9b12f8b4e3309c4c25d39e7ab818943b9c48c1c.tar.bz2 linux-a9b12f8b4e3309c4c25d39e7ab818943b9c48c1c.zip |
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>
-rw-r--r-- | block/genhd.c | 2 | ||||
-rw-r--r-- | drivers/cxl/core/memdev.c | 2 | ||||
-rw-r--r-- | drivers/fsi/fsi-core.c | 6 | ||||
-rw-r--r-- | drivers/hwtracing/intel_th/core.c | 6 | ||||
-rw-r--r-- | drivers/hwtracing/intel_th/intel_th.h | 4 | ||||
-rw-r--r-- | drivers/usb/core/usb.c | 4 | ||||
-rw-r--r-- | include/linux/device.h | 2 |
7 files changed, 13 insertions, 13 deletions
diff --git a/block/genhd.c b/block/genhd.c index 23cf83b3331c..09f2ac548832 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -1201,7 +1201,7 @@ struct class block_class = { .dev_uevent = block_uevent, }; -static char *block_devnode(struct device *dev, umode_t *mode, +static char *block_devnode(const struct device *dev, umode_t *mode, kuid_t *uid, kgid_t *gid) { struct gendisk *disk = dev_to_disk(dev); diff --git a/drivers/cxl/core/memdev.c b/drivers/cxl/core/memdev.c index a74a93310d26..a38a0cc20d47 100644 --- a/drivers/cxl/core/memdev.c +++ b/drivers/cxl/core/memdev.c @@ -27,7 +27,7 @@ static void cxl_memdev_release(struct device *dev) kfree(cxlmd); } -static char *cxl_memdev_devnode(struct device *dev, umode_t *mode, kuid_t *uid, +static char *cxl_memdev_devnode(const struct device *dev, umode_t *mode, kuid_t *uid, kgid_t *gid) { return kasprintf(GFP_KERNEL, "cxl/%s", dev_name(dev)); diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c index 694e80c06665..0b927c9f4267 100644 --- a/drivers/fsi/fsi-core.c +++ b/drivers/fsi/fsi-core.c @@ -897,10 +897,10 @@ static const struct attribute_group *cfam_attr_groups[] = { NULL, }; -static char *cfam_devnode(struct device *dev, umode_t *mode, +static char *cfam_devnode(const struct device *dev, umode_t *mode, kuid_t *uid, kgid_t *gid) { - struct fsi_slave *slave = to_fsi_slave(dev); + const struct fsi_slave *slave = to_fsi_slave(dev); #ifdef CONFIG_FSI_NEW_DEV_NODE return kasprintf(GFP_KERNEL, "fsi/cfam%d", slave->cdev_idx); @@ -915,7 +915,7 @@ static const struct device_type cfam_type = { .groups = cfam_attr_groups }; -static char *fsi_cdev_devnode(struct device *dev, umode_t *mode, +static char *fsi_cdev_devnode(const struct device *dev, umode_t *mode, kuid_t *uid, kgid_t *gid) { #ifdef CONFIG_FSI_NEW_DEV_NODE 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); diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 8527c06b65e6..4df26f4f76e6 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -505,10 +505,10 @@ static const struct dev_pm_ops usb_device_pm_ops = { #endif /* CONFIG_PM */ -static char *usb_devnode(struct device *dev, +static char *usb_devnode(const struct device *dev, umode_t *mode, kuid_t *uid, kgid_t *gid) { - struct usb_device *usb_dev; + const struct usb_device *usb_dev; usb_dev = to_usb_device(dev); return kasprintf(GFP_KERNEL, "bus/usb/%03d/%03d", diff --git a/include/linux/device.h b/include/linux/device.h index dad0614aad96..318861000b83 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -89,7 +89,7 @@ struct device_type { const char *name; const struct attribute_group **groups; int (*uevent)(const struct device *dev, struct kobj_uevent_env *env); - char *(*devnode)(struct device *dev, umode_t *mode, + char *(*devnode)(const struct device *dev, umode_t *mode, kuid_t *uid, kgid_t *gid); void (*release)(struct device *dev); |