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
  ...

8 files changed, 15 insertions, 7 deletions

diff --git a/arch/arm/lib/xor-neon.c b/arch/arm/lib/xor-neon.c
index 522510baed49..cf57fca97908 100644
--- a/arch/arm/lib/xor-neon.c
+++ b/arch/arm/lib/xor-neon.c
@@ -8,6 +8,7 @@
 #include <linux/raid/xor.h>
 #include <linux/module.h>
 
+MODULE_DESCRIPTION("NEON accelerated XOR implementation");
 MODULE_LICENSE("GPL");
 
 #ifndef __ARM_NEON__
diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
index 7ad74db951f6..f18ef45e2fe1 100644
--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
@@ -333,7 +333,7 @@ int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
 	omap_pm_ops.scu_prepare(cpu, power_state);
 
 	/*
-	 * CPU never retuns back if targeted power state is OFF mode.
+	 * CPU never returns back if targeted power state is OFF mode.
 	 * CPU ONLINE follows normal CPU ONLINE ptah via
 	 * omap4_secondary_startup().
 	 */
diff --git a/arch/arm64/boot/Makefile b/arch/arm64/boot/Makefile
index 607a67a649c4..b5a08333bc57 100644
--- a/arch/arm64/boot/Makefile
+++ b/arch/arm64/boot/Makefile
@@ -17,7 +17,7 @@
 OBJCOPYFLAGS_Image :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
 
 targets := Image Image.bz2 Image.gz Image.lz4 Image.lzma Image.lzo \
-	Image.zst image.fit
+	Image.zst Image.xz image.fit
 
 $(obj)/Image: vmlinux FORCE
 	$(call if_changed,objcopy)
@@ -40,6 +40,9 @@ $(obj)/Image.lzo: $(obj)/Image FORCE
 $(obj)/Image.zst: $(obj)/Image FORCE
 	$(call if_changed,zstd)
 
+$(obj)/Image.xz: $(obj)/Image FORCE
+	$(call if_changed,xzkern)
+
 $(obj)/image.fit: $(obj)/Image $(obj)/dts/dtbs-list FORCE
 	$(call if_changed,fit)
 
diff --git a/arch/powerpc/boot/xz_config.h b/arch/powerpc/boot/xz_config.h
index ebfadd39e192..9506a96ebbcc 100644
--- a/arch/powerpc/boot/xz_config.h
+++ b/arch/powerpc/boot/xz_config.h
@@ -50,11 +50,8 @@ static inline void put_unaligned_be32(u32 val, void *p)
 /* prevent the inclusion of the xz-preboot MM headers */
 #define DECOMPR_MM_H
 #define memmove memmove
-#define XZ_EXTERN static
 
 /* xz.h needs to be included directly since we need enum xz_mode */
 #include "../../../include/linux/xz.h"
 
-#undef XZ_EXTERN
-
 #endif
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 82724bc95b74..91fe3940ac71 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -158,6 +158,7 @@ config RISCV
 	select HAVE_KERNEL_LZO if !XIP_KERNEL && !EFI_ZBOOT
 	select HAVE_KERNEL_UNCOMPRESSED if !XIP_KERNEL && !EFI_ZBOOT
 	select HAVE_KERNEL_ZSTD if !XIP_KERNEL && !EFI_ZBOOT
+	select HAVE_KERNEL_XZ if !XIP_KERNEL && !EFI_ZBOOT
 	select HAVE_KPROBES if !XIP_KERNEL
 	select HAVE_KRETPROBES if !XIP_KERNEL
 	# https://github.com/ClangBuiltLinux/linux/issues/1881
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 6fe682139d2e..d469db9f46f4 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -159,6 +159,7 @@ boot-image-$(CONFIG_KERNEL_LZ4)		:= Image.lz4
 boot-image-$(CONFIG_KERNEL_LZMA)	:= Image.lzma
 boot-image-$(CONFIG_KERNEL_LZO)		:= Image.lzo
 boot-image-$(CONFIG_KERNEL_ZSTD)	:= Image.zst
+boot-image-$(CONFIG_KERNEL_XZ)		:= Image.xz
 ifdef CONFIG_RISCV_M_MODE
 boot-image-$(CONFIG_ARCH_CANAAN)	:= loader.bin
 endif
@@ -183,12 +184,12 @@ endif
 vdso-install-y			+= arch/riscv/kernel/vdso/vdso.so.dbg
 vdso-install-$(CONFIG_COMPAT)	+= arch/riscv/kernel/compat_vdso/compat_vdso.so.dbg
 
-BOOT_TARGETS := Image Image.gz Image.bz2 Image.lz4 Image.lzma Image.lzo Image.zst loader loader.bin xipImage vmlinuz.efi
+BOOT_TARGETS := Image Image.gz Image.bz2 Image.lz4 Image.lzma Image.lzo Image.zst Image.xz loader loader.bin xipImage vmlinuz.efi
 
 all:	$(notdir $(KBUILD_IMAGE))
 
 loader.bin: loader
-Image.gz Image.bz2 Image.lz4 Image.lzma Image.lzo Image.zst loader xipImage vmlinuz.efi: Image
+Image.gz Image.bz2 Image.lz4 Image.lzma Image.lzo Image.zst Image.xz loader xipImage vmlinuz.efi: Image
 
 $(BOOT_TARGETS): vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
@@ -225,6 +226,7 @@ define archhelp
   echo  '  Image.lzma	- Compressed kernel image (arch/riscv/boot/Image.lzma)'
   echo  '  Image.lzo	- Compressed kernel image (arch/riscv/boot/Image.lzo)'
   echo  '  Image.zst	- Compressed kernel image (arch/riscv/boot/Image.zst)'
+  echo  '  Image.xz	- Compressed kernel image (arch/riscv/boot/Image.xz)'
   echo  '  vmlinuz.efi	- Compressed EFI kernel image (arch/riscv/boot/vmlinuz.efi)'
   echo  '		  Default when CONFIG_EFI_ZBOOT=y'
   echo  '  xipImage	- Execute-in-place kernel image (arch/riscv/boot/xipImage)'
diff --git a/arch/riscv/boot/Makefile b/arch/riscv/boot/Makefile
index 4e9e7a28bf9b..b25d524ce5eb 100644
--- a/arch/riscv/boot/Makefile
+++ b/arch/riscv/boot/Makefile
@@ -64,6 +64,9 @@ $(obj)/Image.lzo: $(obj)/Image FORCE
 $(obj)/Image.zst: $(obj)/Image FORCE
 	$(call if_changed,zstd)
 
+$(obj)/Image.xz: $(obj)/Image FORCE
+	$(call if_changed,xzkern)
+
 $(obj)/loader.bin: $(obj)/loader FORCE
 	$(call if_changed,objcopy)
 
diff --git a/arch/x86/mm/testmmiotrace.c b/arch/x86/mm/testmmiotrace.c
index bda73cb7a044..ae295659ca14 100644
--- a/arch/x86/mm/testmmiotrace.c
+++ b/arch/x86/mm/testmmiotrace.c
@@ -144,3 +144,4 @@ static void __exit cleanup(void)
 module_init(init);
 module_exit(cleanup);
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Test module for mmiotrace");