The quilt patch titled Subject: thread_info: move function declarations to linux/thread_info.h has been removed from the -mm tree. Its filename was thread_info-move-function-declarations-to-linux-thread_infoh.patch This patch was dropped because it was merged into the mm-nonmm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Arnd Bergmann <arnd@xxxxxxxx> Subject: thread_info: move function declarations to linux/thread_info.h Date: Wed, 17 May 2023 15:11:01 +0200 There are a few __weak functions in kernel/fork.c, which architectures can override. If there is no prototype, the compiler warns about them: kernel/fork.c:164:13: error: no previous prototype for 'arch_release_task_struct' [-Werror=missing-prototypes] kernel/fork.c:991:20: error: no previous prototype for 'arch_task_cache_init' [-Werror=missing-prototypes] kernel/fork.c:1086:12: error: no previous prototype for 'arch_dup_task_struct' [-Werror=missing-prototypes] There are already prototypes in a number of architecture specific headers that have addressed those warnings before, but it's much better to have these in a single place so the warning no longer shows up anywhere. Link: https://lkml.kernel.org/r/20230517131102.934196-14-arnd@xxxxxxxxxx Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Cc: Boqun Feng <boqun.feng@xxxxxxxxx> Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Cc: Christoph Lameter <cl@xxxxxxxxx> Cc: Dennis Zhou <dennis@xxxxxxxxxx> Cc: Eric Paris <eparis@xxxxxxxxxx> Cc: Heiko Carstens <hca@xxxxxxxxxxxxx> Cc: Helge Deller <deller@xxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Cc: Michal Simek <monstr@xxxxxxxxx> Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx> Cc: Paul Moore <paul@xxxxxxxxxxxxxx> Cc: Pavel Machek <pavel@xxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Rafael J. Wysocki <rafael@xxxxxxxxxx> Cc: Russell King <linux@xxxxxxxxxxxxxxx> Cc: Tejun Heo <tj@xxxxxxxxxx> Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Waiman Long <longman@xxxxxxxxxx> Cc: Will Deacon <will@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/arm64/include/asm/thread_info.h | 4 ---- arch/s390/include/asm/thread_info.h | 3 --- arch/sh/include/asm/thread_info.h | 3 --- arch/x86/include/asm/thread_info.h | 3 --- include/linux/thread_info.h | 5 +++++ 5 files changed, 5 insertions(+), 13 deletions(-) --- a/arch/arm64/include/asm/thread_info.h~thread_info-move-function-declarations-to-linux-thread_infoh +++ a/arch/arm64/include/asm/thread_info.h @@ -55,10 +55,6 @@ struct thread_info { void arch_setup_new_exec(void); #define arch_setup_new_exec arch_setup_new_exec -void arch_release_task_struct(struct task_struct *tsk); -int arch_dup_task_struct(struct task_struct *dst, - struct task_struct *src); - #endif #define TIF_SIGPENDING 0 /* signal pending */ --- a/arch/s390/include/asm/thread_info.h~thread_info-move-function-declarations-to-linux-thread_infoh +++ a/arch/s390/include/asm/thread_info.h @@ -52,9 +52,6 @@ struct thread_info { struct task_struct; -void arch_release_task_struct(struct task_struct *tsk); -int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); - void arch_setup_new_exec(void); #define arch_setup_new_exec arch_setup_new_exec --- a/arch/sh/include/asm/thread_info.h~thread_info-move-function-declarations-to-linux-thread_infoh +++ a/arch/sh/include/asm/thread_info.h @@ -84,9 +84,6 @@ static inline struct thread_info *curren #define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT) -extern void arch_task_cache_init(void); -extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); -extern void arch_release_task_struct(struct task_struct *tsk); extern void init_thread_xstate(void); #endif /* __ASSEMBLY__ */ --- a/arch/x86/include/asm/thread_info.h~thread_info-move-function-declarations-to-linux-thread_infoh +++ a/arch/x86/include/asm/thread_info.h @@ -232,9 +232,6 @@ static inline int arch_within_stack_fram current_thread_info()->status & TS_COMPAT) #endif -extern void arch_task_cache_init(void); -extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); -extern void arch_release_task_struct(struct task_struct *tsk); extern void arch_setup_new_exec(void); #define arch_setup_new_exec arch_setup_new_exec #endif /* !__ASSEMBLY__ */ --- a/include/linux/thread_info.h~thread_info-move-function-declarations-to-linux-thread_infoh +++ a/include/linux/thread_info.h @@ -256,6 +256,11 @@ check_copy_size(const void *addr, size_t static inline void arch_setup_new_exec(void) { } #endif +void arch_task_cache_init(void); /* for CONFIG_SH */ +void arch_release_task_struct(struct task_struct *tsk); +int arch_dup_task_struct(struct task_struct *dst, + struct task_struct *src); + #endif /* __KERNEL__ */ #endif /* _LINUX_THREAD_INFO_H */ _ Patches currently in -mm which might be from arnd@xxxxxxxx are time_namespace-always-provide-arch_get_vdso_data-prototype-for-vdso.patch kcov-add-prototypes-for-helper-functions.patch decompressor-provide-missing-prototypes.patch syscalls-add-sys_ni_posix_timers-prototype.patch