Merge tag 'mm-nonmm-stable-2024-09-21-07-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:
 "Many singleton patches - please see the various changelogs for
  details.

  Quite a lot of nilfs2 work this time around.

  Notable patch series in this pull request are:

   - "mul_u64_u64_div_u64: new implementation" by Nicolas Pitre, with
     assistance from Uwe Kleine-König. Reimplement mul_u64_u64_div_u64()
     to provide (much) more accurate results. The current implementation
     was causing Uwe some issues in the PWM drivers.

   - "xz: Updates to license, filters, and compression options" from
     Lasse Collin. Miscellaneous maintenance and kinor feature work to
     the xz decompressor.

   - "Fix some GDB command error and add some GDB commands" from
     Kuan-Ying Lee. Fixes and enhancements to the gdb scripts.

   - "treewide: add missing MODULE_DESCRIPTION() macros" from Jeff
     Johnson. Adds lots of MODULE_DESCRIPTIONs, thus fixing lots of
     warnings about this.

   - "nilfs2: add support for some common ioctls" from Ryusuke Konishi.
     Adds various commonly-available ioctls to nilfs2.

   - "This series fixes a number of formatting issues in kernel doc
     comments" from Ryusuke Konishi does that.

   - "nilfs2: prevent unexpected ENOENT propagation" from Ryusuke
     Konishi. Fix issues where -ENOENT was being unintentionally and
     inappropriately returned to userspace.

   - "nilfs2: assorted cleanups" from Huang Xiaojia.

   - "nilfs2: fix potential issues with empty b-tree nodes" from Ryusuke
     Konishi fixes some issues which can occur on corrupted nilfs2
     filesystems.

   - "scripts/decode_stacktrace.sh: improve error reporting and
     usability" from Luca Ceresoli does those things"

* tag 'mm-nonmm-stable-2024-09-21-07-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (103 commits)
  list: test: increase coverage of list_test_list_replace*()
  list: test: fix tests for list_cut_position()
  proc: use __auto_type more
  treewide: correct the typo 'retun'
  ocfs2: cleanup return value and mlog in ocfs2_global_read_info()
  nilfs2: remove duplicate 'unlikely()' usage
  nilfs2: fix potential oob read in nilfs_btree_check_delete()
  nilfs2: determine empty node blocks as corrupted
  nilfs2: fix potential null-ptr-deref in nilfs_btree_insert()
  user_namespace: use kmemdup_array() instead of kmemdup() for multiple allocation
  tools/mm: rm thp_swap_allocator_test when make clean
  squashfs: fix percpu address space issues in decompressor_multi_percpu.c
  lib: glob.c: added null check for character class
  nilfs2: refactor nilfs_segctor_thread()
  nilfs2: use kthread_create and kthread_stop for the log writer thread
  nilfs2: remove sc_timer_task
  nilfs2: do not repair reserved inode bitmap in nilfs_new_inode()
  nilfs2: eliminate the shared counter and spinlock for i_generation
  nilfs2: separate inode type information from i_state field
  nilfs2: use the BITS_PER_LONG macro
  ...

2 files changed, 8 insertions, 38 deletions

diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index d19434e2a58e..626ad7bd94f2 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -303,9 +303,7 @@ static ssize_t proc_reg_read_iter(struct kiocb *iocb, struct iov_iter *iter)
 
 static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos)
 {
-	typeof_member(struct proc_ops, proc_read) read;
-
-	read = pde->proc_ops->proc_read;
+	__auto_type read = pde->proc_ops->proc_read;
 	if (read)
 		return read(file, buf, count, ppos);
 	return -EIO;
@@ -327,9 +325,7 @@ static ssize_t proc_reg_read(struct file *file, char __user *buf, size_t count,
 
 static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 {
-	typeof_member(struct proc_ops, proc_write) write;
-
-	write = pde->proc_ops->proc_write;
+	__auto_type write = pde->proc_ops->proc_write;
 	if (write)
 		return write(file, buf, count, ppos);
 	return -EIO;
@@ -351,9 +347,7 @@ static ssize_t proc_reg_write(struct file *file, const char __user *buf, size_t
 
 static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts)
 {
-	typeof_member(struct proc_ops, proc_poll) poll;
-
-	poll = pde->proc_ops->proc_poll;
+	__auto_type poll = pde->proc_ops->proc_poll;
 	if (poll)
 		return poll(file, pts);
 	return DEFAULT_POLLMASK;
@@ -375,9 +369,7 @@ static __poll_t proc_reg_poll(struct file *file, struct poll_table_struct *pts)
 
 static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg)
 {
-	typeof_member(struct proc_ops, proc_ioctl) ioctl;
-
-	ioctl = pde->proc_ops->proc_ioctl;
+	__auto_type ioctl = pde->proc_ops->proc_ioctl;
 	if (ioctl)
 		return ioctl(file, cmd, arg);
 	return -ENOTTY;
@@ -400,9 +392,7 @@ static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigne
 #ifdef CONFIG_COMPAT
 static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg)
 {
-	typeof_member(struct proc_ops, proc_compat_ioctl) compat_ioctl;
-
-	compat_ioctl = pde->proc_ops->proc_compat_ioctl;
+	__auto_type compat_ioctl = pde->proc_ops->proc_compat_ioctl;
 	if (compat_ioctl)
 		return compat_ioctl(file, cmd, arg);
 	return -ENOTTY;
@@ -424,9 +414,7 @@ static long proc_reg_compat_ioctl(struct file *file, unsigned int cmd, unsigned
 
 static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma)
 {
-	typeof_member(struct proc_ops, proc_mmap) mmap;
-
-	mmap = pde->proc_ops->proc_mmap;
+	__auto_type mmap = pde->proc_ops->proc_mmap;
 	if (mmap)
 		return mmap(file, vma);
 	return -EIO;
@@ -483,7 +471,6 @@ static int proc_reg_open(struct inode *inode, struct file *file)
 	struct proc_dir_entry *pde = PDE(inode);
 	int rv = 0;
 	typeof_member(struct proc_ops, proc_open) open;
-	typeof_member(struct proc_ops, proc_release) release;
 	struct pde_opener *pdeo;
 
 	if (!pde->proc_ops->proc_lseek)
@@ -510,7 +497,7 @@ static int proc_reg_open(struct inode *inode, struct file *file)
 	if (!use_pde(pde))
 		return -ENOENT;
 
-	release = pde->proc_ops->proc_release;
+	__auto_type release = pde->proc_ops->proc_release;
 	if (release) {
 		pdeo = kmem_cache_alloc(pde_opener_cache, GFP_KERNEL);
 		if (!pdeo) {
@@ -547,9 +534,7 @@ static int proc_reg_release(struct inode *inode, struct file *file)
 	struct pde_opener *pdeo;
 
 	if (pde_is_permanent(pde)) {
-		typeof_member(struct proc_ops, proc_release) release;
-
-		release = pde->proc_ops->proc_release;
+		__auto_type release = pde->proc_ops->proc_release;
 		if (release) {
 			return release(inode, file);
 		}
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index ade74a396968..72f14fd59c2d 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -543,21 +543,6 @@ static int do_procmap_query(struct proc_maps_private *priv, void __user *uarg)
 		}
 	}
 
-	if (karg.build_id_size) {
-		__u32 build_id_sz;
-
-		err = build_id_parse(vma, build_id_buf, &build_id_sz);
-		if (err) {
-			karg.build_id_size = 0;
-		} else {
-			if (karg.build_id_size < build_id_sz) {
-				err = -ENAMETOOLONG;
-				goto out;
-			}
-			karg.build_id_size = build_id_sz;
-		}
-	}
-
 	if (karg.vma_name_size) {
 		size_t name_buf_sz = min_t(size_t, PATH_MAX, karg.vma_name_size);
 		const struct path *path;