Merge tag 'mm-nonmm-stable-2024-01-09-10-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:
 "Quite a lot of kexec work this time around. Many singleton patches in
  many places. The notable patch series are:

   - nilfs2 folio conversion from Matthew Wilcox in 'nilfs2: Folio
     conversions for file paths'.

   - Additional nilfs2 folio conversion from Ryusuke Konishi in 'nilfs2:
     Folio conversions for directory paths'.

   - IA64 remnant removal in Heiko Carstens's 'Remove unused code after
     IA-64 removal'.

   - Arnd Bergmann has enabled the -Wmissing-prototypes warning
     everywhere in 'Treewide: enable -Wmissing-prototypes'. This had
     some followup fixes:

      - Nathan Chancellor has cleaned up the hexagon build in the series
        'hexagon: Fix up instances of -Wmissing-prototypes'.

      - Nathan also addressed some s390 warnings in 's390: A couple of
        fixes for -Wmissing-prototypes'.

      - Arnd Bergmann addresses the same warnings for MIPS in his series
        'mips: address -Wmissing-prototypes warnings'.

   - Baoquan He has made kexec_file operate in a top-down-fitting manner
     similar to kexec_load in the series 'kexec_file: Load kernel at top
     of system RAM if required'

   - Baoquan He has also added the self-explanatory 'kexec_file: print
     out debugging message if required'.

   - Some checkstack maintenance work from Tiezhu Yang in the series
     'Modify some code about checkstack'.

   - Douglas Anderson has disentangled the watchdog code's logging when
     multiple reports are occurring simultaneously. The series is
     'watchdog: Better handling of concurrent lockups'.

   - Yuntao Wang has contributed some maintenance work on the crash code
     in 'crash: Some cleanups and fixes'"

* tag 'mm-nonmm-stable-2024-01-09-10-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (157 commits)
  crash_core: fix and simplify the logic of crash_exclude_mem_range()
  x86/crash: use SZ_1M macro instead of hardcoded value
  x86/crash: remove the unused image parameter from prepare_elf_headers()
  kdump: remove redundant DEFAULT_CRASH_KERNEL_LOW_SIZE
  scripts/decode_stacktrace.sh: strip unexpected CR from lines
  watchdog: if panicking and we dumped everything, don't re-enable dumping
  watchdog/hardlockup: use printk_cpu_sync_get_irqsave() to serialize reporting
  watchdog/softlockup: use printk_cpu_sync_get_irqsave() to serialize reporting
  watchdog/hardlockup: adopt softlockup logic avoiding double-dumps
  kexec_core: fix the assignment to kimage->control_page
  x86/kexec: fix incorrect end address passed to kernel_ident_mapping_init()
  lib/trace_readwrite.c:: replace asm-generic/io with linux/io
  nilfs2: cpfile: fix some kernel-doc warnings
  stacktrace: fix kernel-doc typo
  scripts/checkstack.pl: fix no space expression between sp and offset
  x86/kexec: fix incorrect argument passed to kexec_dprintk()
  x86/kexec: use pr_err() instead of kexec_dprintk() when an error occurs
  nilfs2: add missing set_freezable() for freezable kthread
  kernel: relay: remove relay_file_splice_read dead code, doesn't work
  docs: submit-checklist: remove all of "make namespacecheck"
  ...

14 files changed, 80 insertions, 4 deletions

diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
index 3424a7908c0f..8b08db3fb17a 100644
--- a/arch/mips/include/asm/cache.h
+++ b/arch/mips/include/asm/cache.h
@@ -17,5 +17,11 @@
 #define __read_mostly __section(".data..read_mostly")
 
 extern void cache_noop(void);
+extern void r3k_cache_init(void);
+extern unsigned long r3k_cache_size(unsigned long);
+extern unsigned long r3k_cache_lsize(unsigned long);
+extern void r4k_cache_init(void);
+extern void octeon_cache_init(void);
+extern void au1x00_fixup_config_od(void);
 
 #endif /* _ASM_CACHE_H */
diff --git a/arch/mips/include/asm/jump_label.h b/arch/mips/include/asm/jump_label.h
index c5c6864e64bc..081be98c71ef 100644
--- a/arch/mips/include/asm/jump_label.h
+++ b/arch/mips/include/asm/jump_label.h
@@ -15,6 +15,9 @@
 #include <linux/types.h>
 #include <asm/isa-rev.h>
 
+struct module;
+extern void jump_label_apply_nops(struct module *mod);
+
 #define JUMP_LABEL_NOP_SIZE 4
 
 #ifdef CONFIG_64BIT
diff --git a/arch/mips/include/asm/mach-loongson64/mmzone.h b/arch/mips/include/asm/mach-loongson64/mmzone.h
index ebb1deaa77b9..a3d65d37b8b5 100644
--- a/arch/mips/include/asm/mach-loongson64/mmzone.h
+++ b/arch/mips/include/asm/mach-loongson64/mmzone.h
@@ -18,7 +18,6 @@ extern struct pglist_data *__node_data[];
 
 #define NODE_DATA(n)		(__node_data[n])
 
-extern void setup_zero_pages(void);
 extern void __init prom_init_numa_memory(void);
 
 #endif /* _ASM_MACH_MMZONE_H */
diff --git a/arch/mips/include/asm/mmzone.h b/arch/mips/include/asm/mmzone.h
index 602a21aee9d4..14226ea42036 100644
--- a/arch/mips/include/asm/mmzone.h
+++ b/arch/mips/include/asm/mmzone.h
@@ -20,4 +20,6 @@
 #define nid_to_addrbase(nid) 0
 #endif
 
+extern void setup_zero_pages(void);
+
 #endif /* _ASM_MMZONE_H_ */
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index ae2cd37a38f0..ca7662cc65a7 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -402,4 +402,6 @@ extern int mips_set_process_fp_mode(struct task_struct *task,
 #define GET_FP_MODE(task)		mips_get_process_fp_mode(task)
 #define SET_FP_MODE(task,value)		mips_set_process_fp_mode(task, value)
 
+void show_registers(struct pt_regs *regs);
+
 #endif /* _ASM_PROCESSOR_H */
diff --git a/arch/mips/include/asm/r4kcache.h b/arch/mips/include/asm/r4kcache.h
index 431a1c9d53fc..da1cd1bbdbc5 100644
--- a/arch/mips/include/asm/r4kcache.h
+++ b/arch/mips/include/asm/r4kcache.h
@@ -24,6 +24,10 @@
 #include <asm/mmzone.h>
 #include <asm/unroll.h>
 
+extern void r5k_sc_init(void);
+extern void rm7k_sc_init(void);
+extern int mips_sc_init(void);
+
 extern void (*r4k_blast_dcache)(void);
 extern void (*r4k_blast_icache)(void);
 
diff --git a/arch/mips/include/asm/setup.h b/arch/mips/include/asm/setup.h
index 8c56b862fd9c..4dce41138bad 100644
--- a/arch/mips/include/asm/setup.h
+++ b/arch/mips/include/asm/setup.h
@@ -27,5 +27,6 @@ extern unsigned long ebase;
 extern unsigned int hwrena;
 extern void per_cpu_trap_init(bool);
 extern void cpu_cache_init(void);
+extern void tlb_init(void);
 
 #endif /* __SETUP_H */
diff --git a/arch/mips/include/asm/signal.h b/arch/mips/include/asm/signal.h
index 23d6b8015c79..8de81ccef7ad 100644
--- a/arch/mips/include/asm/signal.h
+++ b/arch/mips/include/asm/signal.h
@@ -31,5 +31,6 @@ extern struct mips_abi mips_abi_32;
 
 extern int protected_save_fp_context(void __user *sc);
 extern int protected_restore_fp_context(void __user *sc);
+void do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags);
 
 #endif /* _ASM_SIGNAL_H */
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index 901bc61fa7ae..695928637db4 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h
@@ -63,6 +63,8 @@ extern asmlinkage void smp_bootstrap(void);
 
 extern void calculate_cpu_foreign_map(void);
 
+asmlinkage void start_secondary(void);
+
 /*
  * this function sends a 'reschedule' IPI to another CPU.
  * it goes straight through and wastes no time serializing
diff --git a/arch/mips/include/asm/spram.h b/arch/mips/include/asm/spram.h
index 373f2a5d495d..9f6a2cb1943a 100644
--- a/arch/mips/include/asm/spram.h
+++ b/arch/mips/include/asm/spram.h
@@ -3,7 +3,7 @@
 #define _MIPS_SPRAM_H
 
 #if defined(CONFIG_MIPS_SPRAM)
-extern __init void spram_config(void);
+extern void spram_config(void);
 #else
 static inline void spram_config(void) { }
 #endif /* CONFIG_MIPS_SPRAM */
diff --git a/arch/mips/include/asm/syscalls.h b/arch/mips/include/asm/syscalls.h
new file mode 100644
index 000000000000..59f9c0c9fa0a
--- /dev/null
+++ b/arch/mips/include/asm/syscalls.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef _ASM_MIPS_SYSCALLS_H
+#define _ASM_MIPS_SYSCALLS_H
+
+#include <linux/linkage.h>
+#include <linux/compat.h>
+
+asmlinkage void sys_sigreturn(void);
+asmlinkage void sys_rt_sigreturn(void);
+asmlinkage int sysm_pipe(void);
+asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len,
+                                     unsigned long __user *user_mask_ptr);
+asmlinkage long mipsmt_sys_sched_getaffinity(pid_t pid, unsigned int len,
+                                     unsigned long __user *user_mask_ptr);
+asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_a2,
+				unsigned offset_a3, unsigned len_a4,
+				unsigned len_a5);
+asmlinkage long sys32_fadvise64_64(int fd, int __pad,
+				   unsigned long a2, unsigned long a3,
+				   unsigned long a4, unsigned long a5,
+				   int flags);
+asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3,
+				   size_t count);
+asmlinkage long sys32_sync_file_range(int fd, int __pad,
+				      unsigned long a2, unsigned long a3,
+				      unsigned long a4, unsigned long a5,
+				      int flags);
+asmlinkage void sys32_rt_sigreturn(void);
+asmlinkage void sys32_sigreturn(void);
+asmlinkage int sys32_sigsuspend(compat_sigset_t __user *uset);
+asmlinkage void sysn32_rt_sigreturn(void);
+
+#endif
diff --git a/arch/mips/include/asm/tlbex.h b/arch/mips/include/asm/tlbex.h
index 6d97e23f30ab..24a2d06cc1c3 100644
--- a/arch/mips/include/asm/tlbex.h
+++ b/arch/mips/include/asm/tlbex.h
@@ -23,6 +23,7 @@ void build_update_entries(u32 **p, unsigned int tmp, unsigned int ptep);
 void build_tlb_write_entry(u32 **p, struct uasm_label **l,
 			   struct uasm_reloc **r,
 			   enum tlb_write_entry wmode);
+void build_tlb_refill_handler(void);
 
 extern void handle_tlbl(void);
 extern char handle_tlbl_end[];
diff --git a/arch/mips/include/asm/traps.h b/arch/mips/include/asm/traps.h
index 15cde638b407..2c2b26f1e464 100644
--- a/arch/mips/include/asm/traps.h
+++ b/arch/mips/include/asm/traps.h
@@ -39,4 +39,28 @@ extern char except_vec_nmi[];
 	register_nmi_notifier(&fn##_nb);				\
 })
 
+asmlinkage void do_ade(struct pt_regs *regs);
+asmlinkage void do_be(struct pt_regs *regs);
+asmlinkage void do_ov(struct pt_regs *regs);
+asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31);
+asmlinkage void do_bp(struct pt_regs *regs);
+asmlinkage void do_tr(struct pt_regs *regs);
+asmlinkage void do_ri(struct pt_regs *regs);
+asmlinkage void do_cpu(struct pt_regs *regs);
+asmlinkage void do_msa_fpe(struct pt_regs *regs, unsigned int msacsr);
+asmlinkage void do_msa(struct pt_regs *regs);
+asmlinkage void do_mdmx(struct pt_regs *regs);
+asmlinkage void do_watch(struct pt_regs *regs);
+asmlinkage void do_mcheck(struct pt_regs *regs);
+asmlinkage void do_mt(struct pt_regs *regs);
+asmlinkage void do_dsp(struct pt_regs *regs);
+asmlinkage void do_reserved(struct pt_regs *regs);
+asmlinkage void do_ftlb(void);
+asmlinkage void do_gsexc(struct pt_regs *regs, u32 diag1);
+asmlinkage void do_daddi_ov(struct pt_regs *regs);
+
+asmlinkage void cache_parity_error(void);
+asmlinkage void ejtag_exception_handler(struct pt_regs *regs);
+asmlinkage void __noreturn nmi_exception_handler(struct pt_regs *regs);
+
 #endif /* _ASM_TRAPS_H */
diff --git a/arch/mips/include/asm/uasm.h b/arch/mips/include/asm/uasm.h
index 296bcf31abb5..b43bfd445252 100644
--- a/arch/mips/include/asm/uasm.h
+++ b/arch/mips/include/asm/uasm.h
@@ -193,9 +193,7 @@ struct uasm_label {
 
 void uasm_build_label(struct uasm_label **lab, u32 *addr,
 			int lid);
-#ifdef CONFIG_64BIT
 int uasm_in_compat_space_p(long addr);
-#endif
 int uasm_rel_hi(long val);
 int uasm_rel_lo(long val);
 void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr);