Merge tag 'driver-core-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updatesk from Greg KH:
 "Here is the big set of driver core updates for 6.15-rc1. Lots of stuff
  happened this development cycle, including:

   - kernfs scaling changes to make it even faster thanks to rcu

   - bin_attribute constify work in many subsystems

   - faux bus minor tweaks for the rust bindings

   - rust binding updates for driver core, pci, and platform busses,
     making more functionaliy available to rust drivers. These are all
     due to people actually trying to use the bindings that were in
     6.14.

   - make Rafael and Danilo full co-maintainers of the driver core
     codebase

   - other minor fixes and updates"

* tag 'driver-core-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (52 commits)
  rust: platform: require Send for Driver trait implementers
  rust: pci: require Send for Driver trait implementers
  rust: platform: impl Send + Sync for platform::Device
  rust: pci: impl Send + Sync for pci::Device
  rust: platform: fix unrestricted &mut platform::Device
  rust: pci: fix unrestricted &mut pci::Device
  rust: device: implement device context marker
  rust: pci: use to_result() in enable_device_mem()
  MAINTAINERS: driver core: mark Rafael and Danilo as co-maintainers
  rust/kernel/faux: mark Registration methods inline
  driver core: faux: only create the device if probe() succeeds
  rust/faux: Add missing parent argument to Registration::new()
  rust/faux: Drop #[repr(transparent)] from faux::Registration
  rust: io: fix devres test with new io accessor functions
  rust: io: rename `io::Io` accessors
  kernfs: Move dput() outside of the RCU section.
  efi: rci2: mark bin_attribute as __ro_after_init
  rapidio: constify 'struct bin_attribute'
  firmware: qemu_fw_cfg: constify 'struct bin_attribute'
  powerpc/perf/hv-24x7: Constify 'struct bin_attribute'
  ...

5 files changed, 19 insertions, 25 deletions

diff --git a/drivers/firmware/dmi-sysfs.c b/drivers/firmware/dmi-sysfs.c
index 8d91997036e4..9cc963b2edc0 100644
--- a/drivers/firmware/dmi-sysfs.c
+++ b/drivers/firmware/dmi-sysfs.c
@@ -431,9 +431,9 @@ static ssize_t dmi_sel_raw_read_helper(struct dmi_sysfs_entry *entry,
 	}
 }
 
-static ssize_t dmi_sel_raw_read(struct file *filp, struct kobject *kobj,
-				struct bin_attribute *bin_attr,
-				char *buf, loff_t pos, size_t count)
+static ssize_t raw_event_log_read(struct file *filp, struct kobject *kobj,
+				  const struct bin_attribute *bin_attr,
+				  char *buf, loff_t pos, size_t count)
 {
 	struct dmi_sysfs_entry *entry = to_entry(kobj->parent);
 	struct dmi_read_state state = {
@@ -445,10 +445,7 @@ static ssize_t dmi_sel_raw_read(struct file *filp, struct kobject *kobj,
 	return find_dmi_entry(entry, dmi_sel_raw_read_helper, &state);
 }
 
-static struct bin_attribute dmi_sel_raw_attr = {
-	.attr = {.name = "raw_event_log", .mode = 0400},
-	.read = dmi_sel_raw_read,
-};
+static const BIN_ATTR_ADMIN_RO(raw_event_log, 0);
 
 static int dmi_system_event_log(struct dmi_sysfs_entry *entry)
 {
@@ -464,7 +461,7 @@ static int dmi_system_event_log(struct dmi_sysfs_entry *entry)
 	if (ret)
 		goto out_free;
 
-	ret = sysfs_create_bin_file(entry->child, &dmi_sel_raw_attr);
+	ret = sysfs_create_bin_file(entry->child, &bin_attr_raw_event_log);
 	if (ret)
 		goto out_del;
 
@@ -537,10 +534,10 @@ static ssize_t dmi_entry_raw_read_helper(struct dmi_sysfs_entry *entry,
 				       &state->pos, dh, entry_length);
 }
 
-static ssize_t dmi_entry_raw_read(struct file *filp,
-				  struct kobject *kobj,
-				  struct bin_attribute *bin_attr,
-				  char *buf, loff_t pos, size_t count)
+static ssize_t raw_read(struct file *filp,
+			struct kobject *kobj,
+			const struct bin_attribute *bin_attr,
+			char *buf, loff_t pos, size_t count)
 {
 	struct dmi_sysfs_entry *entry = to_entry(kobj);
 	struct dmi_read_state state = {
@@ -552,10 +549,7 @@ static ssize_t dmi_entry_raw_read(struct file *filp,
 	return find_dmi_entry(entry, dmi_entry_raw_read_helper, &state);
 }
 
-static const struct bin_attribute dmi_entry_raw_attr = {
-	.attr = {.name = "raw", .mode = 0400},
-	.read = dmi_entry_raw_read,
-};
+static const BIN_ATTR_ADMIN_RO(raw, 0);
 
 static void dmi_sysfs_entry_release(struct kobject *kobj)
 {
@@ -630,7 +624,7 @@ static void __init dmi_sysfs_register_handle(const struct dmi_header *dh,
 		goto out_err;
 
 	/* Create the raw binary file to access the entry */
-	*ret = sysfs_create_bin_file(&entry->kobj, &dmi_entry_raw_attr);
+	*ret = sysfs_create_bin_file(&entry->kobj, &bin_attr_raw);
 	if (*ret)
 		goto out_err;
 
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index fde0656481cc..70d39adf50dc 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -761,8 +761,8 @@ static void __init dmi_scan_machine(void)
 	pr_info("DMI not present or invalid.\n");
 }
 
-static BIN_ATTR_SIMPLE_ADMIN_RO(smbios_entry_point);
-static BIN_ATTR_SIMPLE_ADMIN_RO(DMI);
+static __ro_after_init BIN_ATTR_SIMPLE_ADMIN_RO(smbios_entry_point);
+static __ro_after_init BIN_ATTR_SIMPLE_ADMIN_RO(DMI);
 
 static int __init dmi_init(void)
 {
diff --git a/drivers/firmware/efi/mokvar-table.c b/drivers/firmware/efi/mokvar-table.c
index 208db29613c6..0a856c3f69a3 100644
--- a/drivers/firmware/efi/mokvar-table.c
+++ b/drivers/firmware/efi/mokvar-table.c
@@ -263,7 +263,7 @@ struct efi_mokvar_table_entry *efi_mokvar_entry_find(const char *name)
  * amount of data in this mokvar config table entry.
  */
 static ssize_t efi_mokvar_sysfs_read(struct file *file, struct kobject *kobj,
-				 struct bin_attribute *bin_attr, char *buf,
+				 const struct bin_attribute *bin_attr, char *buf,
 				 loff_t off, size_t count)
 {
 	struct efi_mokvar_table_entry *mokvar_entry = bin_attr->private;
@@ -340,7 +340,7 @@ static int __init efi_mokvar_sysfs_init(void)
 		mokvar_sysfs->bin_attr.attr.name = mokvar_entry->name;
 		mokvar_sysfs->bin_attr.attr.mode = 0400;
 		mokvar_sysfs->bin_attr.size = mokvar_entry->data_size;
-		mokvar_sysfs->bin_attr.read = efi_mokvar_sysfs_read;
+		mokvar_sysfs->bin_attr.read_new = efi_mokvar_sysfs_read;
 
 		err = sysfs_create_bin_file(mokvar_kobj,
 					   &mokvar_sysfs->bin_attr);
diff --git a/drivers/firmware/efi/rci2-table.c b/drivers/firmware/efi/rci2-table.c
index 4fd45d6f69a4..c1bedd244817 100644
--- a/drivers/firmware/efi/rci2-table.c
+++ b/drivers/firmware/efi/rci2-table.c
@@ -40,7 +40,7 @@ static u8 *rci2_base;
 static u32 rci2_table_len;
 unsigned long rci2_table_phys __ro_after_init = EFI_INVALID_TABLE_ADDR;
 
-static BIN_ATTR_SIMPLE_ADMIN_RO(rci2);
+static __ro_after_init BIN_ATTR_SIMPLE_ADMIN_RO(rci2);
 
 static u16 checksum(void)
 {
diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index d58da3e4500a..2615fb780e3c 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -460,7 +460,7 @@ static const struct kobj_type fw_cfg_sysfs_entry_ktype = {
 
 /* raw-read method and attribute */
 static ssize_t fw_cfg_sysfs_read_raw(struct file *filp, struct kobject *kobj,
-				     struct bin_attribute *bin_attr,
+				     const struct bin_attribute *bin_attr,
 				     char *buf, loff_t pos, size_t count)
 {
 	struct fw_cfg_sysfs_entry *entry = to_entry(kobj);
@@ -474,9 +474,9 @@ static ssize_t fw_cfg_sysfs_read_raw(struct file *filp, struct kobject *kobj,
 	return fw_cfg_read_blob(entry->select, buf, pos, count);
 }
 
-static struct bin_attribute fw_cfg_sysfs_attr_raw = {
+static const struct bin_attribute fw_cfg_sysfs_attr_raw = {
 	.attr = { .name = "raw", .mode = S_IRUSR },
-	.read = fw_cfg_sysfs_read_raw,
+	.read_new = fw_cfg_sysfs_read_raw,
 };
 
 /*