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Driver core changes for 6.7-rc1

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Here is the set of driver core updates for 6.7-rc1.  Nothing major in
 here at all, just a small number of changes including:
   - minor cleanups and updates from Andy Shevchenko
   - __counted_by addition
   - firmware_loader update for aborting loads cleaner
   - other minor changes, details in the shortlog
   - documentation update
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.7-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 updates for 6.7-rc1. Nothing major in
  here at all, just a small number of changes including:

   - minor cleanups and updates from Andy Shevchenko

   - __counted_by addition

   - firmware_loader update for aborting loads cleaner

   - other minor changes, details in the shortlog

   - documentation update

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (21 commits)
  firmware_loader: Abort all upcoming firmware load request once reboot triggered
  firmware_loader: Refactor kill_pending_fw_fallback_reqs()
  Documentation: security-bugs.rst: linux-distros relaxed their rules
  driver core: Release all resources during unbind before updating device links
  driver core: class: remove boilerplate code
  driver core: platform: Annotate struct irq_affinity_devres with __counted_by
  resource: Constify resource crosscheck APIs
  resource: Unify next_resource() and next_resource_skip_children()
  resource: Reuse for_each_resource() macro
  PCI: Implement custom llseek for sysfs resource entries
  kernfs: sysfs: support custom llseek method for sysfs entries
  debugfs: Fix __rcu type comparison warning
  device property: Replace custom implementation of COUNT_ARGS()
  drivers: base: test: Make property entry API test modular
  driver core: Add missing parameter description to __fwnode_link_add()
  device property: Clarify usage scope of some struct fwnode_handle members
  devres: rename the first parameter of devm_add_action(_or_reset)
  driver core: platform: Unify the firmware node type check
  driver core: platform: Use temporary variable in platform_device_add()
  driver core: platform: Refactor error path in a couple places
  ...
This commit is contained in:
Linus Torvalds 2023-11-03 15:15:47 -10:00
commit b06f58ad8e
22 changed files with 194 additions and 100 deletions
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51
kernel/resource.c
View file

@ -56,33 +56,17 @@ struct resource_constraint {
static DEFINE_RWLOCK(resource_lock);
static struct resource *next_resource(struct resource *p)
static struct resource *next_resource(struct resource *p, bool skip_children)
{
if (p->child)
if (!skip_children && p->child)
return p->child;
while (!p->sibling && p->parent)
p = p->parent;
return p->sibling;
}
static struct resource *next_resource_skip_children(struct resource *p)
{
while (!p->sibling && p->parent)
p = p->parent;
return p->sibling;
}
#define for_each_resource(_root, _p, _skip_children) \
for ((_p) = (_root)->child; (_p); \
(_p) = (_skip_children) ? next_resource_skip_children(_p) : \
next_resource(_p))
static void *r_next(struct seq_file *m, void *v, loff_t *pos)
{
struct resource *p = v;
(*pos)++;
return (void *)next_resource(p);
}
for ((_p) = (_root)->child; (_p); (_p) = next_resource(_p, _skip_children))
#ifdef CONFIG_PROC_FS
@ -91,14 +75,28 @@ enum { MAX_IORES_LEVEL = 5 };
static void *r_start(struct seq_file *m, loff_t *pos)
__acquires(resource_lock)
{
struct resource *p = pde_data(file_inode(m->file));
loff_t l = 0;
struct resource *root = pde_data(file_inode(m->file));
struct resource *p;
loff_t l = *pos;
read_lock(&resource_lock);
for (p = p->child; p && l < *pos; p = r_next(m, p, &l))
;
for_each_resource(root, p, false) {
if (l-- == 0)
break;
}
return p;
}
static void *r_next(struct seq_file *m, void *v, loff_t *pos)
{
struct resource *p = v;
(*pos)++;
return (void *)next_resource(p, false);
}
static void r_stop(struct seq_file *m, void *v)
__releases(resource_lock)
{
@ -336,7 +334,7 @@ static int find_next_iomem_res(resource_size_t start, resource_size_t end,
read_lock(&resource_lock);
for (p = iomem_resource.child; p; p = next_resource(p)) {
for_each_resource(&iomem_resource, p, false) {
/* If we passed the resource we are looking for, stop */
if (p->start > end) {
p = NULL;
@ -1641,13 +1639,12 @@ __setup("reserve=", reserve_setup);
*/
int iomem_map_sanity_check(resource_size_t addr, unsigned long size)
{
struct resource *p = &iomem_resource;
resource_size_t end = addr + size - 1;
struct resource *p;
int err = 0;
loff_t l;
read_lock(&resource_lock);
for (p = p->child; p ; p = r_next(NULL, p, &l)) {
for_each_resource(&iomem_resource, p, false) {
/*
* We can probably skip the resources without
* IORESOURCE_IO attribute?