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init: remove obsolete arch_call_rest_init() wrapper

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Since commit 3570ee046c ("s390/smp: keep the original lowcore for
CPU 0"), there is no longer any architecture that needs to override
arch_call_rest_init().

Remove the weak wrapper around rest_init(), call rest_init() directly, and
make rest_init() static.

Link: https://lkml.kernel.org/r/aa10868bfb176eef4abb8bb4a710b85330792694.1706106183.git.geert@linux-m68k.org
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Geert Uytterhoeven 2024-01-24 15:27:35 +01:00 • committed by Andrew Morton
parent f16ff3b692
commit ac4db926e1
3 changed files with 2 additions and 10 deletions
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2
include/linux/start_kernel.h
View file

@ -9,7 +9,5 @@
up something else. */
extern asmlinkage void __init __noreturn start_kernel(void);
extern void __init __noreturn arch_call_rest_init(void);
extern void __ref __noreturn rest_init(void);
#endif /* _LINUX_START_KERNEL_H */

9
init/main.c
View file

@ -681,7 +681,7 @@ static void __init setup_command_line(char *command_line)
static __initdata DECLARE_COMPLETION(kthreadd_done);
noinline void __ref __noreturn rest_init(void)
static noinline void __ref __noreturn rest_init(void)
{
struct task_struct *tsk;
int pid;
@ -822,11 +822,6 @@ static int __init early_randomize_kstack_offset(char *buf)
early_param("randomize_kstack_offset", early_randomize_kstack_offset);
#endif
void __init __weak __noreturn arch_call_rest_init(void)
{
rest_init();
}
static void __init print_unknown_bootoptions(void)
{
char *unknown_options;
@ -1069,7 +1064,7 @@ void start_kernel(void)
kcsan_init();
/* Do the rest non-__init'ed, we're now alive */
arch_call_rest_init();
rest_init();
/*
* Avoid stack canaries in callers of boot_init_stack_canary for gcc-10

1
tools/objtool/noreturns.h
View file

@ -12,7 +12,6 @@ NORETURN(__reiserfs_panic)
NORETURN(__stack_chk_fail)
NORETURN(__tdx_hypercall_failed)
NORETURN(__ubsan_handle_builtin_unreachable)
NORETURN(arch_call_rest_init)
NORETURN(arch_cpu_idle_dead)
NORETURN(bch2_trans_in_restart_error)
NORETURN(bch2_trans_restart_error)