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authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-28 12:41:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-28 12:41:28 -0700
commit266d17a8c0d857a579813ad185cd1640b0d6ccac (patch)
tree5a35b668f26bc93cbcf0c867d38203692aaf7f92
parent02e2af20f4f9f2aa0c84e9a30a35c02f0fbb7daa (diff)
parent88d99e870143199ba5bf42701dca06ce1d1388f0 (diff)
downloadlwn-266d17a8c0d857a579813ad185cd1640b0d6ccac.tar.gz
lwn-266d17a8c0d857a579813ad185cd1640b0d6ccac.zip
Merge tag 'driver-core-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH: "Here is the set of driver core changes for 5.18-rc1. Not much here, primarily it was a bunch of cleanups and small updates: - kobj_type cleanups for default_groups - documentation updates - firmware loader minor changes - component common helper added and take advantage of it in many drivers (the largest part of this pull request). All of these have been in linux-next for a while with no reported problems" * tag 'driver-core-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (54 commits) Documentation: update stable review cycle documentation drivers/base/dd.c : Remove the initial value of the global variable Documentation: update stable tree link Documentation: add link to stable release candidate tree devres: fix typos in comments Documentation: add note block surrounding security patch note samples/kobject: Use sysfs_emit instead of sprintf base: soc: Make soc_device_match() simpler and easier to read driver core: dd: fix return value of __setup handler driver core: Refactor sysfs and drv/bus remove hooks driver core: Refactor multiple copies of device cleanup scripts: get_abi.pl: Fix typo in help message kernfs: fix typos in comments kernfs: remove unneeded #if 0 guard ALSA: hda/realtek: Make use of the helper component_compare_dev_name video: omapfb: dss: Make use of the helper component_compare_dev power: supply: ab8500: Make use of the helper component_compare_dev ASoC: codecs: wcd938x: Make use of the helper component_compare/release_of iommu/mediatek: Make use of the helper component_compare/release_of drm: of: Make use of the helper component_release_of ...
-rw-r--r--Documentation/process/stable-kernel-rules.rst32
-rw-r--r--arch/x86/kernel/cpu/resctrl/rdtgroup.c4
-rw-r--r--drivers/base/component.c300
-rw-r--r--drivers/base/dd.c88
-rw-r--r--drivers/base/devres.c4
-rw-r--r--drivers/base/devtmpfs.c2
-rw-r--r--drivers/base/firmware_loader/Kconfig5
-rw-r--r--drivers/base/platform.c6
-rw-r--r--drivers/base/soc.c14
-rw-r--r--drivers/gpu/drm/arm/display/komeda/komeda_drv.c7
-rw-r--r--drivers/gpu/drm/armada/armada_drv.c17
-rw-r--r--drivers/gpu/drm/drm_of.c7
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_drv.c16
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_drv.c8
-rw-r--r--drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c7
-rw-r--r--drivers/gpu/drm/ingenic/ingenic-drm-drv.c7
-rw-r--r--drivers/gpu/drm/mcde/mcde_drv.c7
-rw-r--r--drivers/gpu/drm/mediatek/mtk_drm_drv.c7
-rw-r--r--drivers/gpu/drm/meson/meson_drv.c10
-rw-r--r--drivers/gpu/drm/msm/msm_drv.c15
-rw-r--r--drivers/gpu/drm/omapdrm/dss/dss.c8
-rw-r--r--drivers/gpu/drm/rockchip/rockchip_drm_drv.c7
-rw-r--r--drivers/gpu/drm/sprd/sprd_drm.c7
-rw-r--r--drivers/gpu/drm/sti/sti_drv.c7
-rw-r--r--drivers/gpu/drm/sun4i/sun4i_drv.c11
-rw-r--r--drivers/gpu/drm/vc4/vc4_drv.c7
-rw-r--r--drivers/iommu/mtk_iommu.c4
-rw-r--r--drivers/iommu/mtk_iommu.h10
-rw-r--r--drivers/iommu/mtk_iommu_v1.c4
-rw-r--r--drivers/md/bcache/stats.c3
-rw-r--r--drivers/md/bcache/sysfs.c15
-rw-r--r--drivers/md/bcache/sysfs.h2
-rw-r--r--drivers/power/supply/ab8500_charger.c8
-rw-r--r--drivers/power/supply/ab8500_fg.c3
-rw-r--r--drivers/video/fbdev/omap2/omapfb/dss/dss.c8
-rw-r--r--fs/debugfs/inode.c10
-rw-r--r--fs/kernfs/dir.c9
-rw-r--r--fs/kernfs/file.c2
-rw-r--r--fs/kernfs/kernfs-internal.h19
-rw-r--r--fs/sysfs/mount.c2
-rw-r--r--fs/ubifs/sysfs.c3
-rw-r--r--include/linux/component.h24
-rw-r--r--include/linux/firmware.h2
-rw-r--r--include/linux/kernfs.h18
-rw-r--r--kernel/cgroup/cgroup.c4
-rw-r--r--samples/kobject/kobject-example.c4
-rw-r--r--samples/kobject/kset-example.c4
-rwxr-xr-xscripts/get_abi.pl3
-rwxr-xr-xscripts/spdxcheck.py2
-rw-r--r--sound/pci/hda/patch_realtek.c11
-rw-r--r--sound/soc/codecs/wcd938x.c18
51 files changed, 372 insertions, 430 deletions
diff --git a/Documentation/process/stable-kernel-rules.rst b/Documentation/process/stable-kernel-rules.rst
index 003c865e9c21..c61865e91f52 100644
--- a/Documentation/process/stable-kernel-rules.rst
+++ b/Documentation/process/stable-kernel-rules.rst
@@ -35,7 +35,9 @@ Rules on what kind of patches are accepted, and which ones are not, into the
Procedure for submitting patches to the -stable tree
----------------------------------------------------
- - Security patches should not be handled (solely) by the -stable review
+.. note::
+
+ Security patches should not be handled (solely) by the -stable review
process but should follow the procedures in
:ref:`Documentation/admin-guide/security-bugs.rst <securitybugs>`.
@@ -81,8 +83,8 @@ it to be applied to.
:ref:`option_2` and :ref:`option_3` are more useful if the patch isn't deemed
worthy at the time it is applied to a public git tree (for instance, because
it deserves more regression testing first). :ref:`option_3` is especially
-useful if the patch needs some special handling to apply to an older kernel
-(e.g., if API's have changed in the meantime).
+useful if the original upstream patch needs to be backported (for example
+the backport needs some special handling due to e.g. API changes).
Note that for :ref:`option_3`, if the patch deviates from the original
upstream patch (for example because it had to be backported) this must be very
@@ -151,8 +153,17 @@ Review cycle
- If the patch is rejected by a member of the committee, or linux-kernel
members object to the patch, bringing up issues that the maintainers and
members did not realize, the patch will be dropped from the queue.
- - At the end of the review cycle, the ACKed patches will be added to the
- latest -stable release, and a new -stable release will happen.
+ - The ACKed patches will be posted again as part of release candidate (-rc)
+ to be tested by developers and testers.
+ - Usually only one -rc release is made, however if there are any outstanding
+ issues, some patches may be modified or dropped or additional patches may
+ be queued. Additional -rc releases are then released and tested until no
+ issues are found.
+ - Responding to the -rc releases can be done on the mailing list by sending
+ a "Tested-by:" email with any testing information desired. The "Tested-by:"
+ tags will be collected and added to the release commit.
+ - At the end of the review cycle, the new -stable release will be released
+ containing all the queued and tested patches.
- Security patches will be accepted into the -stable tree directly from the
security kernel team, and not go through the normal review cycle.
Contact the kernel security team for more details on this procedure.
@@ -168,7 +179,16 @@ Trees
- The finalized and tagged releases of all stable kernels can be found
in separate branches per version at:
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
+
+ - The release candidate of all stable kernel versions can be found at:
+
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/
+
+ .. warning::
+ The -stable-rc tree is a snapshot in time of the stable-queue tree and
+ will change frequently, hence will be rebased often. It should only be
+ used for testing purposes (e.g. to be consumed by CI systems).
Review committee
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index b57b3db9a6a7..83f901e2c2df 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -3221,13 +3221,13 @@ static int __init rdtgroup_setup_root(void)
list_add(&rdtgroup_default.rdtgroup_list, &rdt_all_groups);
- ret = rdtgroup_add_files(rdt_root->kn, RF_CTRL_BASE);
+ ret = rdtgroup_add_files(kernfs_root_to_node(rdt_root), RF_CTRL_BASE);
if (ret) {
kernfs_destroy_root(rdt_root);
goto out;
}
- rdtgroup_default.kn = rdt_root->kn;
+ rdtgroup_default.kn = kernfs_root_to_node(rdt_root);
kernfs_activate(rdtgroup_default.kn);
out:
diff --git a/drivers/base/component.c b/drivers/base/component.c
index 2d25a6416587..5eadeac6c532 100644
--- a/drivers/base/component.c
+++ b/drivers/base/component.c
@@ -1,16 +1,12 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Componentized device handling.
- *
- * This is work in progress. We gather up the component devices into a list,
- * and bind them when instructed. At the moment, we're specific to the DRM
- * subsystem, and only handles one master device, but this doesn't have to be
- * the case.
*/
#include <linux/component.h>
#include <linux/device.h>
#include <linux/list.h>
#include <linux/mutex.h>
+#include <linux/of.h>
#include <linux/slab.h>
#include <linux/debugfs.h>
@@ -57,7 +53,7 @@ struct component_match {
struct component_match_array *compare;
};
-struct master {
+struct aggregate_device {
struct list_head node;
bool bound;
@@ -68,7 +64,7 @@ struct master {
struct component {
struct list_head node;
- struct master *master;
+ struct aggregate_device *adev;
bool bound;
const struct component_ops *ops;
@@ -78,7 +74,7 @@ struct component {
static DEFINE_MUTEX(component_mutex);
static LIST_HEAD(component_list);
-static LIST_HEAD(masters);
+static LIST_HEAD(aggregate_devices);
#ifdef CONFIG_DEBUG_FS
@@ -86,12 +82,12 @@ static struct dentry *component_debugfs_dir;
static int component_devices_show(struct seq_file *s, void *data)
{
- struct master *m = s->private;
+ struct aggregate_device *m = s->private;
struct component_match *match = m->match;
size_t i;
mutex_lock(&component_mutex);
- seq_printf(s, "%-40s %20s\n", "master name", "status");
+ seq_printf(s, "%-40s %20s\n", "aggregate_device name", "status");
seq_puts(s, "-------------------------------------------------------------\n");
seq_printf(s, "%-40s %20s\n\n",
dev_name(m->parent), m->bound ? "bound" : "not bound");
@@ -121,46 +117,46 @@ static int __init component_debug_init(void)
core_initcall(component_debug_init);
-static void component_master_debugfs_add(struct master *m)
+static void component_debugfs_add(struct aggregate_device *m)
{
debugfs_create_file(dev_name(m->parent), 0444, component_debugfs_dir, m,
&component_devices_fops);
}
-static void component_master_debugfs_del(struct master *m)
+static void component_debugfs_del(struct aggregate_device *m)
{
debugfs_remove(debugfs_lookup(dev_name(m->parent), component_debugfs_dir));
}
#else
-static void component_master_debugfs_add(struct master *m)
+static void component_debugfs_add(struct aggregate_device *m)
{ }
-static void component_master_debugfs_del(struct master *m)
+static void component_debugfs_del(struct aggregate_device *m)
{ }
#endif
-static struct master *__master_find(struct device *parent,
+static struct aggregate_device *__aggregate_find(struct device *parent,
const struct component_master_ops *ops)
{
- struct master *m;
+ struct aggregate_device *m;
- list_for_each_entry(m, &masters, node)
+ list_for_each_entry(m, &aggregate_devices, node)
if (m->parent == parent && (!ops || m->ops == ops))
return m;
return NULL;
}
-static struct component *find_component(struct master *master,
+static struct component *find_component(struct aggregate_device *adev,
struct component_match_array *mc)
{
struct component *c;
list_for_each_entry(c, &component_list, node) {
- if (c->master && c->master != master)
+ if (c->adev && c->adev != adev)
continue;
if (mc->compare && mc->compare(c->dev, mc->data))
@@ -174,102 +170,103 @@ static struct component *find_component(struct master *master,
return NULL;
}
-static int find_components(struct master *master)
+static int find_components(struct aggregate_device *adev)
{
- struct component_match *match = master->match;
+ struct component_match *match = adev->match;
size_t i;
int ret = 0;
/*
* Scan the array of match functions and attach
- * any components which are found to this master.
+ * any components which are found to this adev.
*/
for (i = 0; i < match->num; i++) {
struct component_match_array *mc = &match->compare[i];
struct component *c;
- dev_dbg(master->parent, "Looking for component %zu\n", i);
+ dev_dbg(adev->parent, "Looking for component %zu\n", i);
if (match->compare[i].component)
continue;
- c = find_component(master, mc);
+ c = find_component(adev, mc);
if (!c) {
ret = -ENXIO;
break;
}
- dev_dbg(master->parent, "found component %s, duplicate %u\n", dev_name(c->dev), !!c->master);
+ dev_dbg(adev->parent, "found component %s, duplicate %u\n",
+ dev_name(c->dev), !!c->adev);
- /* Attach this component to the master */
- match->compare[i].duplicate = !!c->master;
+ /* Attach this component to the adev */
+ match->compare[i].duplicate = !!c->adev;
match->compare[i].component = c;
- c->master = master;
+ c->adev = adev;
}
return ret;
}
-/* Detach component from associated master */
-static void remove_component(struct master *master, struct component *c)
+/* Detach component from associated aggregate_device */
+static void remove_component(struct aggregate_device *adev, struct component *c)
{
size_t i;
- /* Detach the component from this master. */
- for (i = 0; i < master->match->num; i++)
- if (master->match->compare[i].component == c)
- master->match->compare[i].component = NULL;
+ /* Detach the component from this adev. */
+ for (i = 0; i < adev->match->num; i++)
+ if (adev->match->compare[i].component == c)
+ adev->match->compare[i].component = NULL;
}
/*
- * Try to bring up a master. If component is NULL, we're interested in
- * this master, otherwise it's a component which must be present to try
- * and bring up the master.
+ * Try to bring up an aggregate device. If component is NULL, we're interested
+ * in this aggregate device, otherwise it's a component which must be present
+ * to try and bring up the aggregate device.
*
* Returns 1 for successful bringup, 0 if not ready, or -ve errno.
*/
-static int try_to_bring_up_master(struct master *master,
+static int try_to_bring_up_aggregate_device(struct aggregate_device *adev,
struct component *component)
{
int ret;
- dev_dbg(master->parent, "trying to bring up master\n");
+ dev_dbg(adev->parent, "trying to bring up adev\n");
- if (find_components(master)) {
- dev_dbg(master->parent, "master has incomplete components\n");
+ if (find_components(adev)) {
+ dev_dbg(adev->parent, "master has incomplete components\n");
return 0;
}
- if (component && component->master != master) {
- dev_dbg(master->parent, "master is not for this component (%s)\n",
+ if (component && component->adev != adev) {
+ dev_dbg(adev->parent, "master is not for this component (%s)\n",
dev_name(component->dev));
return 0;
}
- if (!devres_open_group(master->parent, master, GFP_KERNEL))
+ if (!devres_open_group(adev->parent, adev, GFP_KERNEL))
return -ENOMEM;
/* Found all components */
- ret = master->ops->bind(master->parent);
+ ret = adev->ops->bind(adev->parent);
if (ret < 0) {
- devres_release_group(master->parent, NULL);
+ devres_release_group(adev->parent, NULL);
if (ret != -EPROBE_DEFER)
- dev_info(master->parent, "master bind failed: %d\n", ret);
+ dev_info(adev->parent, "adev bind failed: %d\n", ret);
return ret;
}
- devres_close_group(master->parent, NULL);
- master->bound = true;
+ devres_close_group(adev->parent, NULL);
+ adev->bound = true;
return 1;
}
static int try_to_bring_up_masters(struct component *component)
{
- struct master *m;
+ struct aggregate_device *adev;
int ret = 0;
- list_for_each_entry(m, &masters, node) {
- if (!m->bound) {
- ret = try_to_bring_up_master(m, component);
+ list_for_each_entry(adev, &aggregate_devices, node) {
+ if (!adev->bound) {
+ ret = try_to_bring_up_aggregate_device(adev, component);
if (ret != 0)
break;
}
@@ -278,15 +275,72 @@ static int try_to_bring_up_masters(struct component *component)
return ret;
}
-static void take_down_master(struct master *master)
+static void take_down_aggregate_device(struct aggregate_device *adev)
{
- if (master->bound) {
- master->ops->unbind(master->parent);
- devres_release_group(master->parent, master);
- master->bound = false;
+ if (adev->bound) {
+ adev->ops->unbind(adev->parent);
+ devres_release_group(adev->parent, adev);
+ adev->bound = false;
}
}
+/**
+ * component_compare_of - A common component compare function for of_node
+ * @dev: component device
+ * @data: @compare_data from component_match_add_release()
+ *
+ * A common compare function when compare_data is device of_node. e.g.
+ * component_match_add_release(masterdev, &match, component_release_of,
+ * component_compare_of, component_dev_of_node)
+ */
+int component_compare_of(struct device *dev, void *data)
+{
+ return device_match_of_node(dev, data);
+}
+EXPORT_SYMBOL_GPL(component_compare_of);
+
+/**
+ * component_release_of - A common component release function for of_node
+ * @dev: component device
+ * @data: @compare_data from component_match_add_release()
+ *
+ * About the example, Please see component_compare_of().
+ */
+void component_release_of(struct device *dev, void *data)
+{
+ of_node_put(data);
+}
+EXPORT_SYMBOL_GPL(component_release_of);
+
+/**
+ * component_compare_dev - A common component compare function for dev
+ * @dev: component device
+ * @data: @compare_data from component_match_add_release()
+ *
+ * A common compare function when compare_data is struce device. e.g.
+ * component_match_add(masterdev, &match, component_compare_dev, component_dev)
+ */
+int component_compare_dev(struct device *dev, void *data)
+{
+ return dev == data;
+}
+EXPORT_SYMBOL_GPL(component_compare_dev);
+
+/**
+ * component_compare_dev_name - A common component compare function for device name
+ * @dev: component device
+ * @data: @compare_data from component_match_add_release()
+ *
+ * A common compare function when compare_data is device name string. e.g.
+ * component_match_add(masterdev, &match, component_compare_dev_name,
+ * "component_dev_name")
+ */
+int component_compare_dev_name(struct device *dev, void *data)
+{
+ return device_match_name(dev, data);
+}
+EXPORT_SYMBOL_GPL(component_compare_dev_name);
+
static void devm_component_match_release(struct device *parent, void *res)
{
struct component_match *match = res;
@@ -324,7 +378,7 @@ static int component_match_realloc(struct component_match *match, size_t num)
return 0;
}
-static void __component_match_add(struct device *master,
+static void __component_match_add(struct device *parent,
struct component_match **matchptr,
void (*release)(struct device *, void *),
int (*compare)(struct device *, void *),
@@ -344,7 +398,7 @@ static void __component_match_add(struct device *master,
return;
}
- devres_add(master, match);
+ devres_add(parent, match);
*matchptr = match;
}
@@ -370,13 +424,13 @@ static void __component_match_add(struct device *master,
/**
* component_match_add_release - add a component match entry with release callback
- * @master: device with the aggregate driver
+ * @parent: parent device of the aggregate driver
* @matchptr: pointer to the list of component matches
* @release: release function for @compare_data
* @compare: compare function to match against all components
* @compare_data: opaque pointer passed to the @compare function
*
- * Adds a new component match to the list stored in @matchptr, which the @master
+ * Adds a new component match to the list stored in @matchptr, which the
* aggregate driver needs to function. The list of component matches pointed to
* by @matchptr must be initialized to NULL before adding the first match. This
* only matches against components added with component_add().
@@ -388,24 +442,24 @@ static void __component_match_add(struct device *master,
*
* See also component_match_add() and component_match_add_typed().
*/
-void component_match_add_release(struct device *master,
+void component_match_add_release(struct device *parent,
struct component_match **matchptr,
void (*release)(struct device *, void *),
int (*compare)(struct device *, void *), void *compare_data)
{
- __component_match_add(master, matchptr, release, compare, NULL,
+ __component_match_add(parent, matchptr, release, compare, NULL,
compare_data);
}
EXPORT_SYMBOL(component_match_add_release);
/**
* component_match_add_typed - add a component match entry for a typed component
- * @master: device with the aggregate driver
+ * @parent: parent device of the aggregate driver
* @matchptr: pointer to the list of component matches
* @compare_typed: compare function to match against all typed components
* @compare_data: opaque pointer passed to the @compare function
*
- * Adds a new component match to the list stored in @matchptr, which the @master
+ * Adds a new component match to the list stored in @matchptr, which the
* aggregate driver needs to function. The list of component matches pointed to
* by @matchptr must be initialized to NULL before adding the first match. This
* only matches against components added with component_add_typed().
@@ -415,32 +469,32 @@ EXPORT_SYMBOL(component_match_add_release);
*
* See also component_match_add_release() and component_match_add_typed().
*/
-void component_match_add_typed(struct device *master,
+void component_match_add_typed(struct device *parent,
struct component_match **matchptr,
int (*compare_typed)(struct device *, int, void *), void *compare_data)
{
- __component_match_add(master, matchptr, NULL, NULL, compare_typed,
+ __component_match_add(parent, matchptr, NULL, NULL, compare_typed,
compare_data);
}
EXPORT_SYMBOL(component_match_add_typed);
-static void free_master(struct master *master)
+static void free_aggregate_device(struct aggregate_device *adev)
{
- struct component_match *match = master->match;
+ struct component_match *match = adev->match;
int i;
- component_master_debugfs_del(master);
- list_del(&master->node);
+ component_debugfs_del(adev);
+ list_del(&adev->node);
if (match) {
for (i = 0; i < match->num; i++) {
struct component *c = match->compare[i].component;
if (c)
- c->master = NULL;
+ c->adev = NULL;
}
}
- kfree(master);
+ kfree(adev);
}
/**
@@ -459,7 +513,7 @@ int component_master_add_with_match(struct device *parent,
const struct component_master_ops *ops,
struct component_match *match)
{
- struct master *master;
+ struct aggregate_device *adev;
int ret;
/* Reallocate the match array for its true size */
@@ -467,23 +521,23 @@ int component_master_add_with_match(struct device *parent,
if (ret)
return ret;
- master = kzalloc(sizeof(*master), GFP_KERNEL);
- if (!master)
+ adev = kzalloc(sizeof(*adev), GFP_KERNEL);
+ if (!adev)
return -ENOMEM;
- master->parent = parent;
- master->ops = ops;
- master->match = match;
+ adev->parent = parent;
+ adev->ops = ops;
+ adev->match = match;
- component_master_debugfs_add(master);
- /* Add to the list of available masters. */
+ component_debugfs_add(adev);
+ /* Add to the list of available aggregate devices. */
mutex_lock(&component_mutex);
- list_add(&master->node, &masters);
+ list_add(&adev->node, &aggregate_devices);
- ret = try_to_bring_up_master(master, NULL);
+ ret = try_to_bring_up_aggregate_device(adev, NULL);
if (ret < 0)
- free_master(master);
+ free_aggregate_device(adev);
mutex_unlock(&component_mutex);
@@ -503,25 +557,25 @@ EXPORT_SYMBOL_GPL(component_master_add_with_match);
void component_master_del(struct device *parent,
const struct component_master_ops *ops)
{
- struct master *master;
+ struct aggregate_device *adev;
mutex_lock(&component_mutex);
- master = __master_find(parent, ops);
- if (master) {
- take_down_master(master);
- free_master(master);
+ adev = __aggregate_find(parent, ops);
+ if (adev) {
+ take_down_aggregate_device(adev);
+ free_aggregate_device(adev);
}
mutex_unlock(&component_mutex);
}
EXPORT_SYMBOL_GPL(component_master_del);
static void component_unbind(struct component *component,
- struct master *master, void *data)
+ struct aggregate_device *adev, void *data)
{
WARN_ON(!component->bound);
if (component->ops && component->ops->unbind)
- component->ops->unbind(component->dev, master->parent, data);
+ component->ops->unbind(component->dev, adev->parent, data);
component->bound = false;
/* Release all resources claimed in the binding of this component */
@@ -539,26 +593,26 @@ static void component_unbind(struct component *component,
*/
void component_unbind_all(struct device *parent, void *data)
{
- struct master *master;
+ struct aggregate_device *adev;
struct component *c;
size_t i;
WARN_ON(!mutex_is_locked(&component_mutex));
- master = __master_find(parent, NULL);
- if (!master)
+ adev = __aggregate_find(parent, NULL);
+ if (!adev)
return;
/* Unbind components in reverse order */
- for (i = master->match->num; i--; )
- if (!master->match->compare[i].duplicate) {
- c = master->match->compare[i].component;
- component_unbind(c, master, data);
+ for (i = adev->match->num; i--; )
+ if (!adev->match->compare[i].duplicate) {
+ c = adev->match->compare[i].component;
+ component_unbind(c, adev, data);
}
}
EXPORT_SYMBOL_GPL(component_unbind_all);
-static int component_bind(struct component *component, struct master *master,
+static int component_bind(struct component *component, struct aggregate_device *adev,
void *data)
{
int ret;
@@ -568,7 +622,7 @@ static int component_bind(struct component *component, struct master *master,
* This allows us to roll-back a failed component without
* affecting anything else.
*/
- if (!devres_open_group(master->parent, NULL, GFP_KERNEL))
+ if (!devres_open_group(adev->parent, NULL, GFP_KERNEL))
return -ENOMEM;
/*
@@ -577,14 +631,14 @@ static int component_bind(struct component *component, struct master *master,
* at the appropriate moment.
*/
if (!devres_open_group(component->dev, component, GFP_KERNEL)) {
- devres_release_group(master->parent, NULL);
+ devres_release_group(adev->parent, NULL);
return -ENOMEM;
}
- dev_dbg(master->parent, "binding %s (ops %ps)\n",
+ dev_dbg(adev->parent, "binding %s (ops %ps)\n",
dev_name(component->dev), component->ops);
- ret = component->ops->bind(component->dev, master->parent, data);
+ ret = component->ops->bind(component->dev, adev->parent, data);
if (!ret) {
component->bound = true;
@@ -595,16 +649,16 @@ static int component_bind(struct component *component, struct master *master,
* can clean those resources up independently.
*/
devres_close_group(component->dev, NULL);
- devres_remove_group(master->parent, NULL);
+ devres_remove_group(adev->parent, NULL);
- dev_info(master->parent, "bound %s (ops %ps)\n",
+ dev_info(adev->parent, "bound %s (ops %ps)\n",
dev_name(component->dev), component->ops);
} else {
devres_release_group(component->dev, NULL);
- devres_release_group(master->parent, NULL);
+ devres_release_group(adev->parent, NULL);
if (ret != -EPROBE_DEFER)
- dev_err(master->parent, "failed to bind %s (ops %ps): %d\n",
+ dev_err(adev->parent, "failed to bind %s (ops %ps): %d\n",
dev_name(component->dev), component->ops, ret);
}
@@ -622,31 +676,31 @@ static int component_bind(struct component *component, struct master *master,
*/
int component_bind_all(struct device *parent, void *data)
{
- struct master *master;
+ struct aggregate_device *adev;
struct component *c;
size_t i;
int ret = 0;
WARN_ON(!mutex_is_locked(&component_mutex));
- master = __master_find(parent, NULL);
- if (!master)
+ adev = __aggregate_find(parent, NULL);
+ if (!adev)
return -EINVAL;
/* Bind components in match order */
- for (i = 0; i < master->match->num; i++)
- if (!master->match->compare[i].duplicate) {
- c = master->match->compare[i].component;
- ret = component_bind(c, master, data);
+ for (i = 0; i < adev->match->num; i++)
+ if (!adev->match->compare[i].duplicate) {
+ c = adev->match->compare[i].component;
+ ret = component_bind(c, adev, data);
if (ret)
break;
}
if (ret != 0) {
for (; i > 0; i--)
- if (!master->match->compare[i - 1].duplicate) {
- c = master->match->compare[i - 1].component;
- component_unbind(c, master, data);
+ if (!adev->match->compare[i - 1].duplicate) {
+ c = adev->match->compare[i - 1].component;
+ component_unbind(c, adev, data);
}
}
@@ -675,8 +729,8 @@ static int __component_add(struct device *dev, const struct component_ops *ops,
ret = try_to_bring_up_masters(component);
if (ret < 0) {
- if (component->master)
- remove_component(component->master, component);
+ if (component->adev)
+ remove_component(component->adev, component);
list_del(&component->node);
kfree(component);
@@ -757,9 +811,9 @@ void component_del(struct device *dev, const struct component_ops *ops)
break;
}
- if (component && component->master) {
- take_down_master(component->master);
- remove_component(component->master, component);
+ if (component && component->adev) {
+ take_down_aggregate_device(component->adev);
+ remove_component(component->adev, component);
}
mutex_unlock(&component_mutex);
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index f47cab21430f..af6bea56f4e2 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -152,7 +152,7 @@ void driver_deferred_probe_del(struct device *dev)
mutex_unlock(&deferred_probe_mutex);
}
-static bool driver_deferred_probe_enable = false;
+static bool driver_deferred_probe_enable;
/**
* driver_deferred_probe_trigger() - Kick off re-probing deferred devices
*
@@ -506,6 +506,30 @@ static ssize_t state_synced_show(struct device *dev,
}
static DEVICE_ATTR_RO(state_synced);
+static void device_unbind_cleanup(struct device *dev)
+{
+ devres_release_all(dev);
+ arch_teardown_dma_ops(dev);
+ kfree(dev->dma_range_map);
+ dev->dma_range_map = NULL;
+ dev->driver = NULL;
+ dev_set_drvdata(dev, NULL);
+ if (dev->pm_domain && dev->pm_domain->dismiss)
+ dev->pm_domain->dismiss(dev);
+ pm_runtime_reinit(dev);
+ dev_pm_set_driver_flags(dev, 0);
+}
+
+static void device_remove(struct device *dev)
+{
+ device_remove_file(dev, &dev_attr_state_synced);
+ device_remove_groups(dev, dev->driver->dev_groups);
+
+ if (dev->bus && dev->bus->remove)
+ dev->bus->remove(dev);
+ else if (dev->driver->remove)
+ dev->driver->remove(dev);
+}
static int call_driver_probe(struct device *dev, struct device_driver *drv)
{
@@ -620,24 +644,9 @@ re_probe:
if (test_remove) {
test_remove = false;
- device_remove_file(dev, &dev_attr_state_synced);
- device_remove_groups(dev, drv->dev_groups);
-
- if (dev->bus->remove)
- dev->bus->remove(dev);
- else if (drv->remove)
- drv->remove(dev);
-
- devres_release_all(dev);
- arch_teardown_dma_ops(dev);
- kfree(dev->dma_range_map);
- dev->dma_range_map = NULL;
+ device_remove(dev);
driver_sysfs_remove(dev);
- dev->driver = NULL;
- dev_set_drvdata(dev, NULL);
- if (dev->pm_domain && dev->pm_domain->dismiss)
- dev->pm_domain->dismiss(dev);
- pm_runtime_reinit(dev);
+ device_unbind_cleanup(dev);
goto re_probe;
}
@@ -653,12 +662,8 @@ re_probe:
goto done;
dev_sysfs_state_synced_failed:
- device_remove_groups(dev, drv->dev_groups);
dev_groups_failed:
- if (dev->bus->remove)
- dev->bus->remove(dev);
- else if (drv->remove)
- drv->remove(dev);
+ device_remove(dev);
probe_failed:
driver_sysfs_remove(dev);
sysfs_failed:
@@ -667,16 +672,7 @@ sysfs_failed:
BUS_NOTIFY_DRIVER_NOT_BOUND, dev);
pinctrl_bind_failed:
device_links_no_driver(dev);
- devres_release_all(dev);
- arch_teardown_dma_ops(dev);
- kfree(dev->dma_range_map);
- dev->dma_range_map = NULL;
- dev->driver = NULL;
- dev_set_drvdata(dev, NULL);
- if (dev->pm_domain && dev->pm_domain->dismiss)
- dev->pm_domain->dismiss(dev);
- pm_runtime_reinit(dev);
- dev_pm_set_driver_flags(dev, 0);
+ device_unbind_cleanup(dev);
done:
return ret;
}
@@ -810,7 +806,7 @@ static int __init save_async_options(char *buf)
pr_warn("Too long list of driver names for 'driver_async_probe'!\n");
strlcpy(async_probe_drv_names, buf, ASYNC_DRV_NAMES_MAX_LEN);
- return 0;
+ return 1;
}
__setup("driver_async_probe=", save_async_options);
@@ -838,7 +834,7 @@ struct device_attach_data {
struct device *dev;
/*
- * Indicates whether we are are considering asynchronous probing or
+ * Indicates whether we are considering asynchronous probing or
* not. Only initial binding after device or driver registration
* (including deferral processing) may be done asynchronously, the
* rest is always synchronous, as we expect it is being done by
@@ -1042,7 +1038,7 @@ static void __device_driver_lock(struct device *dev, struct device *parent)
* @parent: Parent device. Needed if the bus requires parent lock
*
* This function will release the required locks for manipulating dev->drv.
- * Normally this will just be the the @dev lock, but when called for a
+ * Normally this will just be the @dev lock, but when called for a
* USB interface, @parent lock will be released as well.
*/
static void __device_driver_unlock(struct device *dev, struct device *parent)
@@ -1200,26 +1196,10 @@ static void __device_release_driver(struct device *dev, struct device *parent)
pm_runtime_put_sync(dev);
- device_remove_file(dev, &dev_attr_state_synced);
- device_remove_groups(dev, drv->dev_groups);
-
- if (dev->bus && dev->bus->remove)
- dev->bus->remove(dev);
- else if (drv->remove)
- drv->remove(dev);
+ device_remove(dev);
device_links_driver_cleanup(dev);
-
- devres_release_all(dev);
- arch_teardown_dma_ops(dev);
- kfree(dev->dma_range_map);
- dev->dma_range_map = NULL;
- dev->driver = NULL;
- dev_set_drvdata(dev, NULL);
- if (dev->pm_domain && dev->pm_domain->dismiss)
- dev->pm_domain->dismiss(dev);
- pm_runtime_reinit(dev);
- dev_pm_set_driver_flags(dev, 0);
+ device_unbind_cleanup(dev);
klist_remove(&dev->p->knode_driver);
device_pm_check_callbacks(dev);
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index eaa9a5cd1db9..864d0b3f566e 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -692,7 +692,7 @@ EXPORT_SYMBOL_GPL(devres_release_group);
/*
* Custom devres actions allow inserting a simple function call
- * into the teadown sequence.
+ * into the teardown sequence.
*/
struct action_devres {
@@ -916,7 +916,7 @@ void *devm_krealloc(struct device *dev, void *ptr, size_t new_size, gfp_t gfp)
/*
* We can copy the memory contents after releasing the lock as we're
- * no longer modyfing the list links.
+ * no longer modifying the list links.
*/
memcpy(new_dr->data, old_dr->data,
total_old_size - offsetof(struct devres, data));
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index db5a03a0618e..8a3ddbae3b70 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -81,10 +81,8 @@ static struct file_system_type internal_fs_type = {
.name = "devtmpfs",
#ifdef CONFIG_TMPFS
.init_fs_context = shmem_init_fs_context,
- .parameters = shmem_fs_parameters,
#else
.init_fs_context = ramfs_init_fs_context,
- .parameters = ramfs_fs_parameters,
#endif
.kill_sb = kill_litter_super,
};
diff --git a/drivers/base/firmware_loader/Kconfig b/drivers/base/firmware_loader/Kconfig
index 5b24f3959255..38f3b66bf52b 100644
--- a/drivers/base/firmware_loader/Kconfig
+++ b/drivers/base/firmware_loader/Kconfig
@@ -60,6 +60,8 @@ config EXTRA_FIRMWARE
image since it combines both GPL and non-GPL work. You should
consult a lawyer of your own before distributing such an image.
+ NOTE: Compressed files are not supported in EXTRA_FIRMWARE.
+
config EXTRA_FIRMWARE_DIR
string "Firmware blobs root directory"
depends on EXTRA_FIRMWARE != ""
@@ -169,6 +171,9 @@ config FW_LOADER_COMPRESS
be compressed with either none or crc32 integrity check type (pass
"-C crc32" option to xz command).
+ Compressed firmware support does not apply to firmware images
+ that are built into the kernel image (CONFIG_EXTRA_FIRMWARE).
+
config FW_CACHE
bool "Enable firmware caching during suspend"
depends on PM_SLEEP
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 6cb04ac48bf0..8cc272fd5c99 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -467,9 +467,9 @@ int platform_get_irq_byname(struct platform_device *dev, const char *name)
int ret;
ret = __platform_get_irq_byname(dev, name);
- if (ret < 0 && ret != -EPROBE_DEFER)
- dev_err(&dev->dev, "IRQ %s not found\n", name);
-
+ if (ret < 0)
+ return dev_err_probe(&dev->dev, ret, "IRQ %s not found\n",
+ name);
return ret;
}
EXPORT_SYMBOL_GPL(platform_get_irq_byname);
diff --git a/drivers/base/soc.c b/drivers/base/soc.c
index 0af5363a582c..22130b5f789d 100644
--- a/drivers/base/soc.c
+++ b/drivers/base/soc.c
@@ -241,15 +241,13 @@ static int soc_device_match_one(struct device *dev, void *arg)
const struct soc_device_attribute *soc_device_match(
const struct soc_device_attribute *matches)
{
- int ret = 0;
+ int ret;
if (!matches)
return NULL;
- while (!ret) {
- if (!(matches->machine || matches->family ||
- matches->revision || matches->soc_id))
- break;
+ while (matches->machine || matches->family || matches->revision ||
+ matches->soc_id) {
ret = bus_for_each_dev(&soc_bus_type, NULL, (void *)matches,
soc_device_match_one);
if (ret < 0 && early_soc_dev_attr)
@@ -257,10 +255,10 @@ const struct soc_device_attribute *soc_device_match(
matches);
if (ret < 0)
return NULL;
- if (!ret)
- matches++;
- else
+ if (ret)
return matches;
+
+ matches++;
}
return NULL;
}
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
index 51e51ff299b7..ba16895690f1 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
@@ -93,11 +93,6 @@ static const struct component_master_ops komeda_master_ops = {
.unbind = komeda_unbind,
};
-static int compare_of(struct device *dev, void *data)
-{
- return dev->of_node == data;
-}
-
static void komeda_add_slave(struct device *master,
struct component_match **match,
struct device_node *np,
@@ -107,7 +102,7 @@ static void komeda_add_slave(struct device *master,
remote = of_graph_get_remote_node(np, port, endpoint);
if (remote) {
- drm_of_component_match_add(master, match, compare_of, remote);
+ drm_of_component_match_add(master, match, component_compare_of, remote);
of_node_put(remote);
}
}
diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index 4f9b0a9f13e3..0643887800b4 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -177,17 +177,6 @@ static void armada_drm_unbind(struct device *dev)
drm_mm_takedown(&priv->linear);
}
-static int compare_of(struct device *dev, void *data)
-{
- return dev->of_node == data;
-}
-
-static int compare_dev_name(struct device *dev, void *data)
-{
- const char *name = data;
- return !strcmp(dev_name(dev), name);
-}
-
static void armada_add_endpoints(struct device *dev,
struct component_match **match, struct device_node *dev_node)
{
@@ -196,7 +185,7 @@ static void armada_add_endpoints(struct device *dev,
for_each_endpoint_of_node(dev_node, ep) {
remote = of_graph_get_remote_port_parent(ep);
if (remote && of_device_is_available(remote))
- drm_of_component_match_add(dev, match, compare_of,
+ drm_of_component_match_add(dev, match, component_compare_of,
remote);
of_node_put(remote);
}
@@ -213,7 +202,7 @@ static int armada_drm_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
int ret;
- ret = drm_of_component_probe(dev, compare_dev_name, &armada_master_ops);
+ ret = drm_of_component_probe(dev, component_compare_dev_name, &armada_master_ops);
if (ret != -EINVAL)
return ret;
@@ -223,7 +212,7 @@ static int armada_drm_probe(struct platform_device *pdev)
int i;
for (i = 0; devices[i]; i++)
- component_match_add(dev, &match, compare_dev_name,
+ component_match_add(dev, &match, component_compare_dev_name,
devices[i]);
if (i == 0) {
diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c
index 9d90cd75c457..026e4e29a0f3 100644
--- a/drivers/gpu/drm/drm_of.c
+++ b/drivers/gpu/drm/drm_of.c
@@ -18,11 +18,6 @@
* properties.
*/
-static void drm_release_of(struct device *dev, void *data)
-{
- of_node_put(data);
-}
-
/**
* drm_of_crtc_port_mask - find the mask of a registered CRTC by port OF node
* @dev: DRM device
@@ -94,7 +89,7 @@ void drm_of_component_match_add(struct device *master,
struct device_node *node)
{
of_node_get(node);
- component_match_add_release(master, matchptr, drm_release_of,
+ component_match_add_release(master, matchptr, component_release_of,
compare, node);
}
EXPORT_SYMBOL_GPL(drm_of_component_match_add);
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
index 0b756ecb1bc2..1d2b4fb4bcf8 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
@@ -574,18 +574,6 @@ static const struct component_master_ops etnaviv_master_ops = {
.unbind = etnaviv_unbind,
};
-static int compare_of(struct device *dev, void *data)
-{
- struct device_node *np = data;
-
- return dev->of_node == np;
-}
-
-static int compare_str(struct device *dev, void *data)
-{
- return !strcmp(dev_name(dev), data);
-}
-
static int etnaviv_pdev_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -603,14 +591,14 @@ static int etnaviv_pdev_probe(struct platform_device *pdev)
first_node = core_node;
drm_of_component_match_add(&pdev->dev, &match,
- compare_of, core_node);
+ component_compare_of, core_node);
}
} else {
char **names = dev->platform_data;
unsigned i;
for (i = 0; names[i]; i++)
- component_match_add(dev, &match, compare_str, names[i]);
+ component_match_add(dev, &match, component_compare_dev_name, names[i]);
}
/*
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index c68498497c0b..424ea23eec32 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -212,11 +212,6 @@ static struct exynos_drm_driver_info exynos_drm_drivers[] = {
}
};
-static int compare_dev(struct device *dev, void *data)
-{
- return dev == (struct device *)data;
-}
-
static struct component_match *exynos_drm_match_add(struct device *dev)
{
struct component_match *match = NULL;
@@ -234,8 +229,7 @@ static struct component_match *exynos_drm_match_add(struct device *dev)
if (!(info->flags & DRM_FIMC_DEVICE) ||
exynos_drm_check_fimc_device(d) == 0)
- component_match_add(dev, &match,
- compare_dev, d);
+ component_match_add(dev, &match, component_compare_dev, d);
p = d;
}
put_device(p);
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
index 3cf057269f2a..2af51df6dca7 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
@@ -204,11 +204,6 @@ err_mode_config_cleanup:
return ret;
}
-static int compare_of(struct device *dev, void *data)
-{
- return dev->of_node == data;
-}
-
static int kirin_drm_kms_cleanup(struct drm_device *dev)
{
drm_kms_helper_poll_fini(dev);
@@ -279,7 +274,7 @@ static int kirin_drm_platform_probe(struct platform_device *pdev)
if (!remote)
return -ENODEV;
- drm_of_component_match_add(dev, &match, compare_of, remote);
+ drm_of_component_match_add(dev, &match, component_compare_of, remote);
of_node_put(remote);
return component_master_add_with_match(dev, &kirin_drm_ops, match);
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index dcf44cb00821..ac52b49bf901 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -1371,11 +1371,6 @@ static int ingenic_drm_bind_with_components(struct device *dev)
return ingenic_drm_bind(dev, true);
}
-static int compare_of(struct device *dev, void *data)
-{
- return dev->of_node == data;
-}
-
static void ingenic_drm_unbind(struct device *dev)
{
struct ingenic_drm *priv = dev_get_drvdata(dev);
@@ -1409,7 +1404,7 @@ static int ingenic_drm_probe(struct platform_device *pdev)
if (!np)
return ingenic_drm_bind(dev, false);
- drm_of_component_match_add(dev, &match, compare_of, np);
+ drm_of_component_match_add(dev, &match, component_compare_of, np);
of_node_put(np);
return component_master_add_with_match(dev, &ingenic_master_ops, match);
diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
index 0b2910e69b42..e601baa87e55 100644
--- a/drivers/gpu/drm/mcde/mcde_drv.c
+++ b/drivers/gpu/drm/mcde/mcde_drv.c
@@ -265,11 +265,6 @@ static struct platform_driver *const mcde_component_drivers[] = {
&mcde_dsi_driver,
};
-static int mcde_compare_dev(struct device *dev, void *data)
-{
- return dev == data;
-}
-
static int mcde_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -399,7 +394,7 @@ static int mcde_probe(struct platform_device *pdev)
while ((d = platform_find_device_by_driver(p, drv))) {
put_device(p);
- component_match_add(dev, &match, mcde_compare_dev, d);
+ component_match_add(dev, &match, component_compare_dev, d);
p = d;
}
put_device(p);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 838297f9d45d..247c6ff277ef 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -372,11 +372,6 @@ static const struct drm_driver mtk_drm_driver = {
.minor = DRIVER_MINOR,
};
-static int compare_of(struct device *dev, void *data)
-{
- return dev->of_node == data;
-}
-
static int mtk_drm_bind(struct device *dev)
{
struct mtk_drm_private *private = dev_get_drvdata(dev);
@@ -617,7 +612,7 @@ static int mtk_drm_probe(struct platform_device *pdev)
comp_type == MTK_DSI) {
dev_info(dev, "Adding component match for %pOF\n",
node);
- drm_of_component_match_add(dev, &match, compare_of,
+ drm_of_component_match_add(dev, &match, component_compare_of,
node);
}
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 93a7a033a3e8..edae79f41153 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -425,14 +425,6 @@ static int __maybe_unused meson_drv_pm_resume(struct device *dev)
return drm_mode_config_helper_resume(priv->drm);
}
-static int compare_of(struct device *dev, void *data)
-{
- DRM_DEBUG_DRIVER("Comparing of node %pOF with %pOF\n",
- dev->of_node, data);
-
- return dev->of_node == data;
-}
-
static void meson_drv_shutdown(struct platform_device *pdev)
{
struct meson_drm *priv = dev_get_drvdata(&pdev->dev);
@@ -475,7 +467,7 @@ static int meson_drv_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "parent %pOF remote match add %pOF parent %s\n",
np, remote, dev_name(&pdev->dev));
- component_match_add(&pdev->dev, &match, compare_of, remote);
+ component_match_add(&pdev->dev, &match, component_compare_of, remote);
of_node_put(remote);
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 61c81af23ba7..affa95eb05fc 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -1050,15 +1050,6 @@ static const struct dev_pm_ops msm_pm_ops = {
*/
/*
- * NOTE: duplication of the same code as exynos or imx (or probably any other).
- * so probably some room for some helpers
- */
-static int compare_of(struct device *dev, void *data)
-{
- return dev->of_node == data;
-}
-
-/*
* Identify what components need to be added by parsing what remote-endpoints
* our MDP output ports are connected to. In the case of LVDS on MDP4, there
* is no external component that we need to add since LVDS is within MDP4
@@ -1115,7 +1106,7 @@ static int add_components_mdp(struct device *mdp_dev,
if (of_device_is_available(intf))
drm_of_component_match_add(master_dev, matchptr,
- compare_of, intf);
+ component_compare_of, intf);
of_node_put(intf);
}
@@ -1161,7 +1152,7 @@ static int add_display_components(struct platform_device *pdev,
put_device(mdp_dev);
/* add the MDP component itself */
- drm_of_component_match_add(dev, matchptr, compare_of,
+ drm_of_component_match_add(dev, matchptr, component_compare_of,
mdp_dev->of_node);
break;
case KMS_MDP4:
@@ -1200,7 +1191,7 @@ static int add_gpu_components(struct device *dev,
return 0;
if (of_device_is_available(np))
- drm_of_component_match_add(dev, matchptr, compare_of, np);
+ drm_of_component_match_add(dev, matchptr, component_compare_of, np);
of_node_put(np);
diff --git a/drivers/gpu/drm/omapdrm/dss/dss.c b/drivers/gpu/drm/omapdrm/dss/dss.c
index 69b3e15b9356..0399f3390a0a 100644
--- a/drivers/gpu/drm/omapdrm/dss/dss.c
+++ b/drivers/gpu/drm/omapdrm/dss/dss.c
@@ -1344,12 +1344,6 @@ static const struct component_master_ops dss_component_ops = {
.unbind = dss_unbind,
};
-static int dss_component_compare(struct device *dev, void *data)
-{
- struct device *child = data;
- return dev == child;
-}
-
struct dss_component_match_data {
struct device *dev;
struct component_match **match;
@@ -1379,7 +1373,7 @@ static int dss_add_child_component(struct device *dev, void *data)
return device_for_each_child(dev, cmatch,
dss_add_child_component);
- component_match_add(cmatch->dev, match, dss_component_compare, dev);
+ component_match_add(cmatch->dev, match, component_compare_dev, dev);
return 0;
}
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index ac190e2b1f7a..4eaeb430c83a 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -290,11 +290,6 @@ int rockchip_drm_endpoint_is_subdriver(struct device_node *ep)
return false;
}
-static int compare_dev(struct device *dev, void *data)
-{
- return dev == (struct device *)data;
-}
-
static void rockchip_drm_match_remove(struct device *dev)
{
struct device_link *link;
@@ -321,7 +316,7 @@ static struct component_match *rockchip_drm_match_add(struct device *dev)
break;
device_link_add(dev, d, DL_FLAG_STATELESS);
- component_match_add(dev, &match, compare_dev, d);
+ component_match_add(dev, &match, component_compare_dev, d);
} while (true);
}
diff --git a/drivers/gpu/drm/sprd/sprd_drm.c b/drivers/gpu/drm/sprd/sprd_drm.c
index a60ecdd67d98..b8fc1c6a0cb8 100644
--- a/drivers/gpu/drm/sprd/sprd_drm.c
+++ b/drivers/gpu/drm/sprd/sprd_drm.c
@@ -133,14 +133,9 @@ static const struct component_master_ops drm_component_ops = {
.unbind = sprd_drm_unbind,
};
-static int compare_of(struct device *dev, void *data)
-{
- return dev->of_node == data;
-}
-
static int sprd_drm_probe(struct platform_device *pdev)
{
- return drm_of_component_probe(&pdev->dev, compare_of, &drm_component_ops);
+ return drm_of_component_probe(&pdev->dev, component_compare_of, &drm_component_ops);
}
static int sprd_drm_remove(struct platform_device *pdev)
diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index 860b2230aa08..d858209cf8de 100644
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -144,11 +144,6 @@ static const struct drm_driver sti_driver = {
.minor = DRIVER_MINOR,
};
-static int compare_of(struct device *dev, void *data)
-{
- return dev->of_node == data;
-}
-
static int sti_init(struct drm_device *ddev)
{
struct sti_private *private;
@@ -244,7 +239,7 @@ static int sti_platform_probe(struct platform_device *pdev)
child_np = of_get_next_available_child(node, NULL);
while (child_np) {
- drm_of_component_match_add(dev, &match, compare_of,
+ drm_of_component_match_add(dev, &match, component_compare_of,
child_np);
child_np = of_get_next_available_child(node, child_np);
}
diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index a3fd441dd9ad..6a9ba8a77c77 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -202,15 +202,6 @@ static bool sun4i_drv_node_is_tcon_top(struct device_node *node)
!!of_match_node(sun8i_tcon_top_of_table, node);
}
-static int compare_of(struct device *dev, void *data)
-{
- DRM_DEBUG_DRIVER("Comparing of node %pOF with %pOF\n",
- dev->of_node,
- data);
-
- return dev->of_node == data;
-}
-
/*
* The encoder drivers use drm_of_find_possible_crtcs to get upstream
* crtcs from the device tree using of_graph. For the results to be
@@ -330,7 +321,7 @@ static int sun4i_drv_add_endpoints(struct device *dev,
of_device_is_available(node))) {
/* Add current component */
DRM_DEBUG_DRIVER("Adding component %pOF\n", node);
- drm_of_component_match_add(dev, match, compare_of, node);
+ drm_of_component_match_add(dev, match, component_compare_of, node);
count++;
}
diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index a03053c8e22c..162bc18e7497 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -189,11 +189,6 @@ static struct drm_driver vc4_drm_driver = {
.patchlevel = DRIVER_PATCHLEVEL,
};
-static int compare_dev(struct device *dev, void *data)
-{
- return dev == data;
-}
-
static void vc4_match_add_drivers(struct device *dev,
struct component_match **match,
struct platform_driver *const *drivers,
@@ -207,7 +202,7 @@ static void vc4_match_add_drivers(struct device *dev,
while ((d = platform_find_device_by_driver(p, drv))) {
put_device(p);
- component_match_add(dev, match, compare_dev, d);
+ component_match_add(dev, match, component_compare_dev, d);
p = d;
}
put_device(p);
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 55c87d6f4a1f..6fd75a60abd6 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -883,8 +883,8 @@ static int mtk_iommu_probe(struct platform_device *pdev)
}
data->larb_imu[id].dev = &plarbdev->dev;
- component_match_add_release(dev, &match, release_of,
- compare_of, larbnode);
+ component_match_add_release(dev, &match, component_release_of,
+ component_compare_of, larbnode);
}
/* Get smi-common dev from the last larb. */
diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h
index f81fa8862ed0..b742432220c5 100644
--- a/drivers/iommu/mtk_iommu.h
+++ b/drivers/iommu/mtk_iommu.h
@@ -84,16 +84,6 @@ struct mtk_iommu_data {
struct mtk_smi_larb_iommu larb_imu[MTK_LARB_NR_MAX];
};
-static inline int compare_of(struct device *dev, void *data)
-{
- return dev->of_node == data;
-}
-
-static inline void release_of(struct device *dev, void *data)
-{
- of_node_put(data);
-}
-
static inline int mtk_iommu_bind(struct device *dev)
{
struct mtk_iommu_data *data = dev_get_drvdata(dev);
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index eaba793fa261..ecff800656e6 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -641,8 +641,8 @@ static int mtk_iommu_probe(struct platform_device *pdev)
}
data->larb_imu[i].dev = &plarbdev->dev;
- component_match_add_release(dev, &match, release_of,
- compare_of, larbnode);
+ component_match_add_release(dev, &match, component_release_of,
+ component_compare_of, larbnode);
}
platform_set_drvdata(pdev, data);
diff --git a/drivers/md/bcache/stats.c b/drivers/md/bcache/stats.c
index 4c7ee5fedb9d..68b02216033d 100644
--- a/drivers/md/bcache/stats.c
+++ b/drivers/md/bcache/stats.c
@@ -78,7 +78,7 @@ static void bch_stats_release(struct kobject *k)
{
}
-static struct attribute *bch_stats_files[] = {
+static struct attribute *bch_stats_attrs[] = {
&sysfs_cache_hits,
&sysfs_cache_misses,
&sysfs_cache_bypass_hits,
@@ -88,6 +88,7 @@ static struct attribute *bch_stats_files[] = {
&sysfs_bypassed,
NULL
};
+ATTRIBUTE_GROUPS(bch_stats);
static KTYPE(bch_stats);
int bch_cache_accounting_add_kobjs(struct cache_accounting *acc,
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index 1f0dce30fa75..d1029d71ff3b 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -500,7 +500,7 @@ STORE(bch_cached_dev)
return size;
}
-static struct attribute *bch_cached_dev_files[] = {
+static struct attribute *bch_cached_dev_attrs[] = {
&sysfs_attach,
&sysfs_detach,
&sysfs_stop,
@@ -543,6 +543,7 @@ static struct attribute *bch_cached_dev_files[] = {
&sysfs_backing_dev_uuid,
NULL
};
+ATTRIBUTE_GROUPS(bch_cached_dev);
KTYPE(bch_cached_dev);
SHOW(bch_flash_dev)
@@ -600,7 +601,7 @@ STORE(__bch_flash_dev)
}
STORE_LOCKED(bch_flash_dev)
-static struct attribute *bch_flash_dev_files[] = {
+static struct attribute *bch_flash_dev_attrs[] = {
&sysfs_unregister,
#if 0
&sysfs_data_csum,
@@ -609,6 +610,7 @@ static struct attribute *bch_flash_dev_files[] = {
&sysfs_size,
NULL
};
+ATTRIBUTE_GROUPS(bch_flash_dev);
KTYPE(bch_flash_dev);
struct bset_stats_op {
@@ -955,7 +957,7 @@ static void bch_cache_set_internal_release(struct kobject *k)
{
}
-static struct attribute *bch_cache_set_files[] = {
+static struct attribute *bch_cache_set_attrs[] = {
&sysfs_unregister,
&sysfs_stop,
&sysfs_synchronous,
@@ -980,9 +982,10 @@ static struct attribute *bch_cache_set_files[] = {
&sysfs_clear_stats,
NULL
};
+ATTRIBUTE_GROUPS(bch_cache_set);
KTYPE(bch_cache_set);
-static struct attribute *bch_cache_set_internal_files[] = {
+static struct attribute *bch_cache_set_internal_attrs[] = {
&sysfs_active_journal_entries,
sysfs_time_stats_attribute_list(btree_gc, sec, ms)
@@ -1022,6 +1025,7 @@ static struct attribute *bch_cache_set_internal_files[] = {
&sysfs_feature_incompat,
NULL
};
+ATTRIBUTE_GROUPS(bch_cache_set_internal);
KTYPE(bch_cache_set_internal);
static int __bch_cache_cmp(const void *l, const void *r)
@@ -1182,7 +1186,7 @@ STORE(__bch_cache)
}
STORE_LOCKED(bch_cache)
-static struct attribute *bch_cache_files[] = {
+static struct attribute *bch_cache_attrs[] = {
&sysfs_bucket_size,
&sysfs_block_size,
&sysfs_nbuckets,
@@ -1196,4 +1200,5 @@ static struct attribute *bch_cache_files[] = {
&sysfs_cache_replacement_policy,
NULL
};
+ATTRIBUTE_GROUPS(bch_cache);
KTYPE(bch_cache);
diff --git a/drivers/md/bcache/sysfs.h b/drivers/md/bcache/sysfs.h
index c1752ba2e05b..a2ff6447b699 100644
--- a/drivers/md/bcache/sysfs.h
+++ b/drivers/md/bcache/sysfs.h
@@ -9,7 +9,7 @@ struct kobj_type type ## _ktype = { \
.show = type ## _show, \
.store = type ## _store \
}), \
- .default_attrs = type ## _files \
+ .default_groups = type ## _groups \
}
#define SHOW(fn) \
diff --git a/drivers/power/supply/ab8500_charger.c b/drivers/power/supply/ab8500_charger.c
index b17d4649210a..d04d087caa50 100644
--- a/drivers/power/supply/ab8500_charger.c
+++ b/drivers/power/supply/ab8500_charger.c
@@ -3421,11 +3421,6 @@ static struct platform_driver *const ab8500_charger_component_drivers[] = {
&ab8500_chargalg_driver,
};
-static int ab8500_charger_compare_dev(struct device *dev, void *data)
-{
- return dev == data;
-}
-
static int ab8500_charger_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -3666,8 +3661,7 @@ static int ab8500_charger_probe(struct platform_device *pdev)
while ((d = platform_find_device_by_driver(p, drv))) {
put_device(p);
- component_match_add(dev, &match,
- ab8500_charger_compare_dev, d);
+ component_match_add(dev, &match, component_compare_dev, d);
p = d;
}
put_device(p);
diff --git a/drivers/power/supply/ab8500_fg.c b/drivers/power/supply/ab8500_fg.c
index 3ae8086907de..97ac588a9e9c 100644
--- a/drivers/power/supply/ab8500_fg.c
+++ b/drivers/power/supply/ab8500_fg.c
@@ -2537,10 +2537,11 @@ static struct attribute *ab8500_fg_attrs[] = {
&charge_now_attr.attr,
NULL,
};
+ATTRIBUTE_GROUPS(ab8500_fg);
static struct kobj_type ab8500_fg_ktype = {
.sysfs_ops = &ab8500_fg_sysfs_ops,
- .default_attrs = ab8500_fg_attrs,
+ .default_groups = ab8500_fg_groups,
};
/**
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss.c b/drivers/video/fbdev/omap2/omapfb/dss/dss.c
index a6b1c1598040..45b9d3cf3860 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dss.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dss.c
@@ -1193,12 +1193,6 @@ static const struct component_master_ops dss_component_ops = {
.unbind = dss_unbind,
};
-static int dss_component_compare(struct device *dev, void *data)
-{
- struct device *child = data;
- return dev == child;
-}
-
static int dss_add_child_component(struct device *dev, void *data)
{
struct component_match **match = data;
@@ -1212,7 +1206,7 @@ static int dss_add_child_component(struct device *dev, void *data)
if (strstr(dev_name(dev), "rfbi"))
return 0;
- component_match_add(dev->parent, match, dss_component_compare, dev);
+ component_match_add(dev->parent, match, component_compare_dev, dev);
return 0;
}
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 2f117c57160d..3dcf0b8b4e93 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -450,6 +450,11 @@ static struct dentry *__debugfs_create_file(const char *name, umode_t mode,
*
* If debugfs is not enabled in the kernel, the value -%ENODEV will be
* returned.
+ *
+ * NOTE: it's expected that most callers should _ignore_ the errors returned
+ * by this function. Other debugfs functions handle the fact that the "dentry"
+ * passed to them could be an error and they don't crash in that case.
+ * Drivers should generally work fine even if debugfs fails to init anyway.
*/
struct dentry *debugfs_create_file(const char *name, umode_t mode,
struct dentry *parent, void *data,
@@ -551,6 +556,11 @@ EXPORT_SYMBOL_GPL(debugfs_create_file_size);
*
* If debugfs is not enabled in the kernel, the value -%ENODEV will be
* returned.
+ *
+ * NOTE: it's expected that most callers should _ignore_ the errors returned
+ * by this function. Other debugfs functions handle the fact that the "dentry"
+ * passed to them could be an error and they don't crash in that case.
+ * Drivers should generally work fine even if debugfs fails to init anyway.
*/
struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
{
diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
index e6d9772ddb4c..61a8edc4ba8b 100644
--- a/fs/kernfs/dir.c
+++ b/fs/kernfs/dir.c
@@ -971,6 +971,15 @@ void kernfs_destroy_root(struct kernfs_root *root)
}
/**
+ * kernfs_root_to_node - return the kernfs_node associated with a kernfs_root
+ * @root: root to use to lookup
+ */
+struct kernfs_node *kernfs_root_to_node(struct kernfs_root *root)
+{
+ return root->kn;
+}
+
+/**
* kernfs_create_dir_ns - create a directory
* @parent: parent in which to create a new directory
* @name: name of the new directory
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index 9414a7a60a9f..74067a73ff78 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -1002,7 +1002,7 @@ struct kernfs_node *__kernfs_create_file(struct kernfs_node *parent,
#endif
/*
- * kn->attr.ops is accesible only while holding active ref. We
+ * kn->attr.ops is accessible only while holding active ref. We
* need to know whether some ops are implemented outside active
* ref. Cache their existence in flags.
*/
diff --git a/fs/kernfs/kernfs-internal.h b/fs/kernfs/kernfs-internal.h
index f9cc912c31e1..eeaa779b929c 100644
--- a/fs/kernfs/kernfs-internal.h
+++ b/fs/kernfs/kernfs-internal.h
@@ -31,6 +31,24 @@ struct kernfs_iattrs {
atomic_t user_xattr_size;
};
+struct kernfs_root {
+ /* published fields */
+ struct kernfs_node *kn;
+ unsigned int flags; /* KERNFS_ROOT_* flags */
+
+ /* private fields, do not use outside kernfs proper */
+ struct idr ino_idr;
+ u32 last_id_lowbits;
+ u32 id_highbits;
+ struct kernfs_syscall_ops *syscall_ops;
+
+ /* list of kernfs_super_info of this root, protected by kernfs_rwsem */
+ struct list_head supers;
+
+ wait_queue_head_t deactivate_waitq;
+ struct rw_semaphore kernfs_rwsem;
+};
+
/* +1 to avoid triggering overflow warning when negating it */
#define KN_DEACTIVATED_BIAS (INT_MIN + 1)
@@ -122,7 +140,6 @@ int __kernfs_setattr(struct kernfs_node *kn, const struct iattr *iattr);
/*
* dir.c
*/
-extern struct rw_semaphore kernfs_rwsem;
extern const struct dentry_operations kernfs_dops;
extern const struct file_operations kernfs_dir_fops;
extern const struct inode_operations kernfs_dir_iops;
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index e747c135c1d1..98467bb76737 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -103,7 +103,7 @@ int __init sysfs_init(void)
if (IS_ERR(sysfs_root))
return PTR_ERR(sysfs_root);
- sysfs_root_kn = sysfs_root->kn;
+ sysfs_root_kn = kernfs_root_to_node(sysfs_root);
err = register_filesystem(&sysfs_fs_type);
if (err) {
diff --git a/fs/ubifs/sysfs.c b/fs/ubifs/sysfs.c
index 7acc5a74e5fa..06ad8fa1fcfb 100644
--- a/fs/ubifs/sysfs.c
+++ b/fs/ubifs/sysfs.c
@@ -42,6 +42,7 @@ static struct attribute *ubifs_attrs[] = {
ATTR_LIST(errors_crc),
NULL,
};
+ATTRIBUTE_GROUPS(ubifs);
static ssize_t ubifs_attr_show(struct kobject *kobj,
struct attribute *attr, char *buf)
@@ -74,7 +75,7 @@ static const struct sysfs_ops ubifs_attr_ops = {
};
static struct kobj_type ubifs_sb_ktype = {
- .default_attrs = ubifs_attrs,
+ .default_groups = ubifs_groups,
.sysfs_ops = &ubifs_attr_ops,
.release = ubifs_sb_release,
};
diff --git a/include/linux/component.h b/include/linux/component.h
index 16de18f473d7..df4aa75c9e7c 100644
--- a/include/linux/component.h
+++ b/include/linux/component.h
@@ -38,10 +38,10 @@ int component_add_typed(struct device *dev, const struct component_ops *ops,
int subcomponent);
void component_del(struct device *, const struct component_ops *);
-int component_bind_all(struct device *master, void *master_data);
-void component_unbind_all(struct device *master, void *master_data);
+int component_bind_all(struct device *parent, void *data);
+void component_unbind_all(struct device *parent, void *data);
-struct master;
+struct aggregate_device;
/**
* struct component_master_ops - callback for the aggregate driver
@@ -82,6 +82,12 @@ struct component_master_ops {
void (*unbind)(struct device *master);
};
+/* A set helper functions for component compare/release */
+int component_compare_of(struct device *dev, void *data);
+void component_release_of(struct device *dev, void *data);
+int component_compare_dev(struct device *dev, void *data);
+int component_compare_dev_name(struct device *dev, void *data);
+
void component_master_del(struct device *,
const struct component_master_ops *);
@@ -89,22 +95,22 @@ struct component_match;
int component_master_add_with_match(struct device *,
const struct component_master_ops *, struct component_match *);
-void component_match_add_release(struct device *master,
+void component_match_add_release(struct device *parent,
struct component_match **matchptr,
void (*release)(struct device *, void *),
int (*compare)(struct device *, void *), void *compare_data);
-void component_match_add_typed(struct device *master,
+void component_match_add_typed(struct device *parent,
struct component_match **matchptr,
int (*compare_typed)(struct device *, int, void *), void *compare_data);
/**
* component_match_add - add a component match entry
- * @master: device with the aggregate driver
+ * @parent: device with the aggregate driver
* @matchptr: pointer to the list of component matches
* @compare: compare function to match against all components
* @compare_data: opaque pointer passed to the @compare function
*
- * Adds a new component match to the list stored in @matchptr, which the @master
+ * Adds a new component match to the list stored in @matchptr, which the @parent
* aggregate driver needs to function. The list of component matches pointed to
* by @matchptr must be initialized to NULL before adding the first match. This
* only matches against components added with component_add().
@@ -114,11 +120,11 @@ void component_match_add_typed(struct device *master,
*
* See also component_match_add_release() and component_match_add_typed().
*/
-static inline void component_match_add(struct device *master,
+static inline void component_match_add(struct device *parent,
struct component_match **matchptr,
int (*compare)(struct device *, void *), void *compare_data)
{
- component_match_add_release(master, matchptr, NULL, compare,
+ component_match_add_release(parent, matchptr, NULL, compare,
compare_data);
}
diff --git a/include/linux/firmware.h b/include/linux/firmware.h
index 3b057dfc8284..ec2ccfebef65 100644
--- a/include/linux/firmware.h
+++ b/include/linux/firmware.h
@@ -34,7 +34,7 @@ static inline bool firmware_request_builtin(struct firmware *fw,
}
#endif
-#if defined(CONFIG_FW_LOADER) || (defined(CONFIG_FW_LOADER_MODULE) && defined(MODULE))
+#if IS_REACHABLE(CONFIG_FW_LOADER)
int request_firmware(const struct firmware **fw, const char *name,
struct device *device);
int firmware_request_nowarn(const struct firmware **fw, const char *name,
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index 861c4f0f8a29..e2ae15a6225e 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -185,23 +185,7 @@ struct kernfs_syscall_ops {
struct kernfs_root *root);
};
-struct kernfs_root {
- /* published fields */
- struct kernfs_node *kn;
- unsigned int flags; /* KERNFS_ROOT_* flags */
-
- /* private fields, do not use outside kernfs proper */
- struct idr ino_idr;
- u32 last_id_lowbits;
- u32 id_highbits;
- struct kernfs_syscall_ops *syscall_ops;
-
- /* list of kernfs_super_info of this root, protected by kernfs_rwsem */
- struct list_head supers;
-
- wait_queue_head_t deactivate_waitq;
- struct rw_semaphore kernfs_rwsem;
-};
+struct kernfs_node *kernfs_root_to_node(struct kernfs_root *root);
struct kernfs_open_file {
/* published fields */
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 795c2818e2a3..adb820e98f24 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -1302,7 +1302,7 @@ static struct css_set *find_css_set(struct css_set *old_cset,
struct cgroup_root *cgroup_root_from_kf(struct kernfs_root *kf_root)
{
- struct cgroup *root_cgrp = kf_root->kn->priv;
+ struct cgroup *root_cgrp = kernfs_root_to_node(kf_root)->priv;
return root_cgrp->root;
}
@@ -2025,7 +2025,7 @@ int cgroup_setup_root(struct cgroup_root *root, u16 ss_mask)
ret = PTR_ERR(root->kf_root);
goto exit_root_id;
}
- root_cgrp->kn = root->kf_root->kn;
+ root_cgrp->kn = kernfs_root_to_node(root->kf_root);
WARN_ON_ONCE(cgroup_ino(root_cgrp) != 1);
root_cgrp->ancestor_ids[0] = cgroup_id(root_cgrp);
diff --git a/samples/kobject/kobject-example.c b/samples/kobject/kobject-example.c
index 9e383fdbaa00..96678ed73216 100644
--- a/samples/kobject/kobject-example.c
+++ b/samples/kobject/kobject-example.c
@@ -28,7 +28,7 @@ static int bar;
static ssize_t foo_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{
- return sprintf(buf, "%d\n", foo);
+ return sysfs_emit(buf, "%d\n", foo);
}
static ssize_t foo_store(struct kobject *kobj, struct kobj_attribute *attr,
@@ -60,7 +60,7 @@ static ssize_t b_show(struct kobject *kobj, struct kobj_attribute *attr,
var = baz;
else
var = bar;
- return sprintf(buf, "%d\n", var);
+ return sysfs_emit(buf, "%d\n", var);
}
static ssize_t b_store(struct kobject *kobj, struct kobj_attribute *attr,
diff --git a/samples/kobject/kset-example.c b/samples/kobject/kset-example.c
index c8010f126808..52f1acabd479 100644
--- a/samples/kobject/kset-example.c
+++ b/samples/kobject/kset-example.c
@@ -112,7 +112,7 @@ static void foo_release(struct kobject *kobj)
static ssize_t foo_show(struct foo_obj *foo_obj, struct foo_attribute *attr,
char *buf)
{
- return sprintf(buf, "%d\n", foo_obj->foo);
+ return sysfs_emit(buf, "%d\n", foo_obj->foo);
}
static ssize_t foo_store(struct foo_obj *foo_obj, struct foo_attribute *attr,
@@ -144,7 +144,7 @@ static ssize_t b_show(struct foo_obj *foo_obj, struct foo_attribute *attr,
var = foo_obj->baz;
else
var = foo_obj->bar;
- return sprintf(buf, "%d\n", var);
+ return sysfs_emit(buf, "%d\n", var);
}
static ssize_t b_store(struct foo_obj *foo_obj, struct foo_attribute *attr,
diff --git a/scripts/get_abi.pl b/scripts/get_abi.pl
index 6212f58b69c6..7437e19ba3ac 100755
--- a/scripts/get_abi.pl
+++ b/scripts/get_abi.pl
@@ -92,6 +92,7 @@ sub parse_abi {
my $mode = (stat($file))[2];
return if ($mode & S_IFDIR);
return if ($file =~ m,/README,);
+ return if ($file =~ m,/\.,);
my $name = $file;
$name =~ s,.*/,,;
@@ -987,7 +988,7 @@ abi_book.pl - parse the Linux ABI files and produce a ReST book.
B<abi_book.pl> [--debug <level>] [--enable-lineno] [--man] [--help]
[--(no-)rst-source] [--dir=<dir>] [--show-hints]
[--search-string <regex>]
- <COMAND> [<ARGUMENT>]
+ <COMMAND> [<ARGUMENT>]
Where B<COMMAND> can be:
diff --git a/scripts/spdxcheck.py b/scripts/spdxcheck.py
index ebd06ae642c9..f3be8ed54f6d 100755
--- a/scripts/spdxcheck.py
+++ b/scripts/spdxcheck.py
@@ -200,7 +200,7 @@ class id_parser(object):
tok = pe.tok.value
sys.stdout.write('%s: %d:%d %s: %s\n' %(fname, self.curline, col, pe.txt, tok))
else:
- sys.stdout.write('%s: %d:0 %s\n' %(fname, self.curline, col, pe.txt))
+ sys.stdout.write('%s: %d:0 %s\n' %(fname, self.curline, pe.txt))
self.spdx_errors += 1
def scan_git_tree(tree):
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index f6ee67f41c45..c78f16944f43 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6581,11 +6581,6 @@ static void alc287_fixup_legion_15imhg05_speakers(struct hda_codec *codec,
}
}
-static int comp_match_dev_name(struct device *dev, void *data)
-{
- return strcmp(dev_name(dev), data) == 0;
-}
-
static int find_comp_by_dev_name(struct alc_spec *spec, const char *name)
{
int i;
@@ -6646,7 +6641,7 @@ static void cs35l41_generic_fixup(struct hda_codec *cdc, int action, const char
"%s-%s:00-cs35l41-hda.%d", bus, hid, i);
if (!name)
return;
- component_match_add(dev, &spec->match, comp_match_dev_name, name);
+ component_match_add(dev, &spec->match, component_compare_dev_name, name);
}
ret = component_master_add_with_match(dev, &comp_master_ops, spec->match);
if (ret)
@@ -6705,9 +6700,9 @@ static void alc287_fixup_legion_16achg6_speakers(struct hda_codec *cdc, const st
switch (action) {
case HDA_FIXUP_ACT_PRE_PROBE:
- component_match_add(dev, &spec->match, comp_match_dev_name,
+ component_match_add(dev, &spec->match, component_compare_dev_name,
"i2c-CLSA0100:00-cs35l41-hda.0");
- component_match_add(dev, &spec->match, comp_match_dev_name,
+ component_match_add(dev, &spec->match, component_compare_dev_name,
"i2c-CLSA0100:00-cs35l41-hda.1");
ret = component_master_add_with_match(dev, &comp_master_ops, spec->match);
if (ret)
diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index 782877db8c3c..898b2887fa63 100644
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -4447,16 +4447,6 @@ static const struct component_master_ops wcd938x_comp_ops = {
.unbind = wcd938x_unbind,
};
-static int wcd938x_compare_of(struct device *dev, void *data)
-{
- return dev->of_node == data;
-}
-
-static void wcd938x_release_of(struct device *dev, void *data)
-{
- of_node_put(data);
-}
-
static int wcd938x_add_slave_components(struct wcd938x_priv *wcd938x,
struct device *dev,
struct component_match **matchptr)
@@ -4472,8 +4462,8 @@ static int wcd938x_add_slave_components(struct wcd938x_priv *wcd938x,
}
of_node_get(wcd938x->rxnode);
- component_match_add_release(dev, matchptr, wcd938x_release_of,
- wcd938x_compare_of, wcd938x->rxnode);
+ component_match_add_release(dev, matchptr, component_release_of,
+ component_compare_of, wcd938x->rxnode);
wcd938x->txnode = of_parse_phandle(np, "qcom,tx-device", 0);
if (!wcd938x->txnode) {
@@ -4481,8 +4471,8 @@ static int wcd938x_add_slave_components(struct wcd938x_priv *wcd938x,
return -ENODEV;
}
of_node_get(wcd938x->txnode);
- component_match_add_release(dev, matchptr, wcd938x_release_of,
- wcd938x_compare_of, wcd938x->txnode);
+ component_match_add_release(dev, matchptr, component_release_of,
+ component_compare_of, wcd938x->txnode);
return 0;
}