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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-05 02:07:10 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-05 02:15:35 (GMT)
commitaf82455f7dbd9dc20244d80d033721b30d22c065 (patch)
tree3b9246456e82ae116b57834a2f0b4a307a016474 /drivers/rapidio
parent0be75179df5e20306528800fc7c6a504b12b97db (diff)
parent2a76f89fa58c769241cfc21f2614705591519ae3 (diff)
Merge tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here is the big set of new char/misc driver drivers and features for 4.12-rc1. There's lots of new drivers added this time around, new firmware drivers from Google, more auxdisplay drivers, extcon drivers, fpga drivers, and a bunch of other driver updates. Nothing major, except if you happen to have the hardware for these drivers, and then you will be happy :) All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (136 commits) firmware: google memconsole: Fix return value check in platform_memconsole_init() firmware: Google VPD: Fix return value check in vpd_platform_init() goldfish_pipe: fix build warning about using too much stack. goldfish_pipe: An implementation of more parallel pipe fpga fr br: update supported version numbers fpga: region: release FPGA region reference in error path fpga altera-hps2fpga: disable/unprepare clock on error in alt_fpga_bridge_probe() mei: drop the TODO from samples firmware: Google VPD sysfs driver firmware: Google VPD: import lib_vpd source files misc: lkdtm: Add volatile to intentional NULL pointer reference eeprom: idt_89hpesx: Add OF device ID table misc: ds1682: Add OF device ID table misc: tsl2550: Add OF device ID table w1: Remove unneeded use of assert() and remove w1_log.h w1: Use kernel common min() implementation uio_mf624: Align memory regions to page size and set correct offsets uio_mf624: Refactor memory info initialization uio: Allow handling of non page-aligned memory regions hangcheck-timer: Fix typo in comment ...
Diffstat (limited to 'drivers/rapidio')
-rw-r--r--drivers/rapidio/devices/rio_mport_cdev.c24
-rw-r--r--drivers/rapidio/rio-sysfs.c76
-rw-r--r--drivers/rapidio/rio.c3
-rw-r--r--drivers/rapidio/rio.h2
4 files changed, 41 insertions, 64 deletions
diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c
index 50b617af..5beb0c3 100644
--- a/drivers/rapidio/devices/rio_mport_cdev.c
+++ b/drivers/rapidio/devices/rio_mport_cdev.c
@@ -2444,31 +2444,25 @@ static struct mport_dev *mport_cdev_add(struct rio_mport *mport)
mutex_init(&md->buf_mutex);
mutex_init(&md->file_mutex);
INIT_LIST_HEAD(&md->file_list);
- cdev_init(&md->cdev, &mport_fops);
- md->cdev.owner = THIS_MODULE;
- ret = cdev_add(&md->cdev, MKDEV(MAJOR(dev_number), mport->id), 1);
- if (ret < 0) {
- kfree(md);
- rmcd_error("Unable to register a device, err=%d", ret);
- return NULL;
- }
- md->dev.devt = md->cdev.dev;
+ device_initialize(&md->dev);
+ md->dev.devt = MKDEV(MAJOR(dev_number), mport->id);
md->dev.class = dev_class;
md->dev.parent = &mport->dev;
md->dev.release = mport_device_release;
dev_set_name(&md->dev, DEV_NAME "%d", mport->id);
atomic_set(&md->active, 1);
- ret = device_register(&md->dev);
+ cdev_init(&md->cdev, &mport_fops);
+ md->cdev.owner = THIS_MODULE;
+
+ ret = cdev_device_add(&md->cdev, &md->dev);
if (ret) {
rmcd_error("Failed to register mport %d (err=%d)",
mport->id, ret);
goto err_cdev;
}
- get_device(&md->dev);
-
INIT_LIST_HEAD(&md->doorbells);
spin_lock_init(&md->db_lock);
INIT_LIST_HEAD(&md->portwrites);
@@ -2513,8 +2507,7 @@ static struct mport_dev *mport_cdev_add(struct rio_mport *mport)
return md;
err_cdev:
- cdev_del(&md->cdev);
- kfree(md);
+ put_device(&md->dev);
return NULL;
}
@@ -2578,7 +2571,7 @@ static void mport_cdev_remove(struct mport_dev *md)
atomic_set(&md->active, 0);
mport_cdev_terminate_dma(md);
rio_del_mport_pw_handler(md->mport, md, rio_mport_pw_handler);
- cdev_del(&(md->cdev));
+ cdev_device_del(&md->cdev, &md->dev);
mport_cdev_kill_fasync(md);
flush_workqueue(dma_wq);
@@ -2603,7 +2596,6 @@ static void mport_cdev_remove(struct mport_dev *md)
rio_release_inb_dbell(md->mport, 0, 0x0fff);
- device_unregister(&md->dev);
put_device(&md->dev);
}
diff --git a/drivers/rapidio/rio-sysfs.c b/drivers/rapidio/rio-sysfs.c
index eda4156..73e4b40 100644
--- a/drivers/rapidio/rio-sysfs.c
+++ b/drivers/rapidio/rio-sysfs.c
@@ -108,15 +108,11 @@ static struct attribute *rio_dev_attrs[] = {
&dev_attr_lprev.attr,
&dev_attr_destid.attr,
&dev_attr_modalias.attr,
- NULL,
-};
-static const struct attribute_group rio_dev_group = {
- .attrs = rio_dev_attrs,
-};
-
-const struct attribute_group *rio_dev_groups[] = {
- &rio_dev_group,
+ /* Switch-only attributes */
+ &dev_attr_routes.attr,
+ &dev_attr_lnext.attr,
+ &dev_attr_hopcount.attr,
NULL,
};
@@ -259,46 +255,40 @@ static struct bin_attribute rio_config_attr = {
.write = rio_write_config,
};
-/**
- * rio_create_sysfs_dev_files - create RIO specific sysfs files
- * @rdev: device whose entries should be created
- *
- * Create files when @rdev is added to sysfs.
- */
-int rio_create_sysfs_dev_files(struct rio_dev *rdev)
-{
- int err = 0;
-
- err = device_create_bin_file(&rdev->dev, &rio_config_attr);
+static struct bin_attribute *rio_dev_bin_attrs[] = {
+ &rio_config_attr,
+ NULL,
+};
- if (!err && (rdev->pef & RIO_PEF_SWITCH)) {
- err |= device_create_file(&rdev->dev, &dev_attr_routes);
- err |= device_create_file(&rdev->dev, &dev_attr_lnext);
- err |= device_create_file(&rdev->dev, &dev_attr_hopcount);
+static umode_t rio_dev_is_attr_visible(struct kobject *kobj,
+ struct attribute *attr, int n)
+{
+ struct rio_dev *rdev = to_rio_dev(kobj_to_dev(kobj));
+ umode_t mode = attr->mode;
+
+ if (!(rdev->pef & RIO_PEF_SWITCH) &&
+ (attr == &dev_attr_routes.attr ||
+ attr == &dev_attr_lnext.attr ||
+ attr == &dev_attr_hopcount.attr)) {
+ /*
+ * Hide switch-specific attributes for a non-switch device.
+ */
+ mode = 0;
}
- if (err)
- pr_warning("RIO: Failed to create attribute file(s) for %s\n",
- rio_name(rdev));
-
- return err;
+ return mode;
}
-/**
- * rio_remove_sysfs_dev_files - cleanup RIO specific sysfs files
- * @rdev: device whose entries we should free
- *
- * Cleanup when @rdev is removed from sysfs.
- */
-void rio_remove_sysfs_dev_files(struct rio_dev *rdev)
-{
- device_remove_bin_file(&rdev->dev, &rio_config_attr);
- if (rdev->pef & RIO_PEF_SWITCH) {
- device_remove_file(&rdev->dev, &dev_attr_routes);
- device_remove_file(&rdev->dev, &dev_attr_lnext);
- device_remove_file(&rdev->dev, &dev_attr_hopcount);
- }
-}
+static const struct attribute_group rio_dev_group = {
+ .attrs = rio_dev_attrs,
+ .is_visible = rio_dev_is_attr_visible,
+ .bin_attrs = rio_dev_bin_attrs,
+};
+
+const struct attribute_group *rio_dev_groups[] = {
+ &rio_dev_group,
+ NULL,
+};
static ssize_t bus_scan_store(struct bus_type *bus, const char *buf,
size_t count)
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index 3704285..38d9494 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -192,8 +192,6 @@ int rio_add_device(struct rio_dev *rdev)
}
spin_unlock(&rio_global_list_lock);
- rio_create_sysfs_dev_files(rdev);
-
return 0;
}
EXPORT_SYMBOL_GPL(rio_add_device);
@@ -220,7 +218,6 @@ void rio_del_device(struct rio_dev *rdev, enum rio_device_state state)
}
}
spin_unlock(&rio_global_list_lock);
- rio_remove_sysfs_dev_files(rdev);
device_unregister(&rdev->dev);
}
EXPORT_SYMBOL_GPL(rio_del_device);
diff --git a/drivers/rapidio/rio.h b/drivers/rapidio/rio.h
index 9796b3f..b2abf85 100644
--- a/drivers/rapidio/rio.h
+++ b/drivers/rapidio/rio.h
@@ -27,8 +27,6 @@ extern u32 rio_mport_get_efb(struct rio_mport *port, int local, u16 destid,
u8 hopcount, u32 from);
extern int rio_mport_chk_dev_access(struct rio_mport *mport, u16 destid,
u8 hopcount);
-extern int rio_create_sysfs_dev_files(struct rio_dev *rdev);
-extern void rio_remove_sysfs_dev_files(struct rio_dev *rdev);
extern int rio_lock_device(struct rio_mport *port, u16 destid,
u8 hopcount, int wait_ms);
extern int rio_unlock_device(struct rio_mport *port, u16 destid, u8 hopcount);

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