Merge tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - An extensive rework of kexec and crash Kconfig from Eric DeVolder
   ("refactor Kconfig to consolidate KEXEC and CRASH options")

 - kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a
   couple of macros to args.h")

 - gdb feature work from Kuan-Ying Lee ("Add GDB memory helper
   commands")

 - vsprintf inclusion rationalization from Andy Shevchenko
   ("lib/vsprintf: Rework header inclusions")

 - Switch the handling of kdump from a udev scheme to in-kernel
   handling, by Eric DeVolder ("crash: Kernel handling of CPU and memory
   hot un/plug")

 - Many singleton patches to various parts of the tree

* tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (81 commits)
  document while_each_thread(), change first_tid() to use for_each_thread()
  drivers/char/mem.c: shrink character device's devlist[] array
  x86/crash: optimize CPU changes
  crash: change crash_prepare_elf64_headers() to for_each_possible_cpu()
  crash: hotplug support for kexec_load()
  x86/crash: add x86 crash hotplug support
  crash: memory and CPU hotplug sysfs attributes
  kexec: exclude elfcorehdr from the segment digest
  crash: add generic infrastructure for crash hotplug support
  crash: move a few code bits to setup support of crash hotplug
  kstrtox: consistently use _tolower()
  kill do_each_thread()
  nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse
  scripts/bloat-o-meter: count weak symbol sizes
  treewide: drop CONFIG_EMBEDDED
  lockdep: fix static memory detection even more
  lib/vsprintf: declare no_hash_pointers in sprintf.h
  lib/vsprintf: split out sprintf() and friends
  kernel/fork: stop playing lockless games for exe_file replacement
  adfs: delete unused "union adfs_dirtail" definition
  ...

1 files changed, 27 insertions, 0 deletions

diff --git a/include/linux/sprintf.h b/include/linux/sprintf.h
new file mode 100644
index 000000000000..33dcbec71925
--- /dev/null
+++ b/include/linux/sprintf.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_KERNEL_SPRINTF_H_
+#define _LINUX_KERNEL_SPRINTF_H_
+
+#include <linux/compiler_attributes.h>
+#include <linux/types.h>
+
+int num_to_str(char *buf, int size, unsigned long long num, unsigned int width);
+
+__printf(2, 3) int sprintf(char *buf, const char * fmt, ...);
+__printf(2, 0) int vsprintf(char *buf, const char *, va_list);
+__printf(3, 4) int snprintf(char *buf, size_t size, const char *fmt, ...);
+__printf(3, 0) int vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
+__printf(3, 4) int scnprintf(char *buf, size_t size, const char *fmt, ...);
+__printf(3, 0) int vscnprintf(char *buf, size_t size, const char *fmt, va_list args);
+__printf(2, 3) __malloc char *kasprintf(gfp_t gfp, const char *fmt, ...);
+__printf(2, 0) __malloc char *kvasprintf(gfp_t gfp, const char *fmt, va_list args);
+__printf(2, 0) const char *kvasprintf_const(gfp_t gfp, const char *fmt, va_list args);
+
+__scanf(2, 3) int sscanf(const char *, const char *, ...);
+__scanf(2, 0) int vsscanf(const char *, const char *, va_list);
+
+/* These are for specific cases, do not use without real need */
+extern bool no_hash_pointers;
+int no_hash_pointers_enable(char *str);
+
+#endif	/* _LINUX_KERNEL_SPRINTF_H */