Re: [PATCH 11/14] init: consolidate prototypes in linux/init.h

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On Wed, 17 May 2023 06:10:59 PDT (-0700), arnd@xxxxxxxxxx wrote:
From: Arnd Bergmann <arnd@xxxxxxxx>

The init/main.c file contains some extern declarations for functions
defined in architecture code, and it defines some other functions that
are called from architecture code with a custom prototype. Both of those
result in warnings with 'make W=1':

init/calibrate.c:261:37: error: no previous prototype for 'calibrate_delay_is_known' [-Werror=missing-prototypes]
init/main.c:790:20: error: no previous prototype for 'mem_encrypt_init' [-Werror=missing-prototypes]
init/main.c:792:20: error: no previous prototype for 'poking_init' [-Werror=missing-prototypes]
arch/arm64/kernel/irq.c:122:13: error: no previous prototype for 'init_IRQ' [-Werror=missing-prototypes]
arch/arm64/kernel/time.c:55:13: error: no previous prototype for 'time_init' [-Werror=missing-prototypes]
arch/x86/kernel/process.c:935:13: error: no previous prototype for 'arch_post_acpi_subsys_init' [-Werror=missing-prototypes]
init/calibrate.c:261:37: error: no previous prototype for 'calibrate_delay_is_known' [-Werror=missing-prototypes]
kernel/fork.c:991:20: error: no previous prototype for 'arch_task_cache_init' [-Werror=missing-prototypes]

Add prototypes for all of these in include/linux/init.h or another
appropriate header, and remove the duplicate declarations from
architecture specific code.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 arch/arm/include/asm/irq.h          |  1 -
 arch/microblaze/include/asm/setup.h |  2 --
 arch/mips/include/asm/irq.h         |  1 -
 arch/parisc/kernel/smp.c            |  1 -
 arch/powerpc/include/asm/irq.h      |  1 -
 arch/riscv/include/asm/irq.h        |  2 --
 arch/riscv/include/asm/timex.h      |  2 --
 arch/s390/kernel/entry.h            |  2 --
 arch/sh/include/asm/irq.h           |  1 -
 arch/sh/include/asm/rtc.h           |  2 --
 arch/sparc/include/asm/irq_32.h     |  1 -
 arch/sparc/include/asm/irq_64.h     |  1 -
 arch/sparc/include/asm/timer_64.h   |  1 -
 arch/sparc/kernel/kernel.h          |  4 ----
 arch/x86/include/asm/irq.h          |  2 --
 arch/x86/include/asm/mem_encrypt.h  |  3 ---
 arch/x86/include/asm/time.h         |  1 -
 arch/x86/include/asm/tsc.h          |  1 -
 include/linux/acpi.h                |  3 ++-
 include/linux/delay.h               |  1 +
 include/linux/init.h                | 20 ++++++++++++++++++++
 init/main.c                         | 18 ------------------
 22 files changed, 23 insertions(+), 48 deletions(-)

...

diff --git a/arch/riscv/include/asm/irq.h b/arch/riscv/include/asm/irq.h
index 43b9ebfbd943..8e10a94430a2 100644
--- a/arch/riscv/include/asm/irq.h
+++ b/arch/riscv/include/asm/irq.h
@@ -16,6 +16,4 @@ void riscv_set_intc_hwnode_fn(struct fwnode_handle *(*fn)(void));

 struct fwnode_handle *riscv_get_intc_hwnode(void);

-extern void __init init_IRQ(void);
-
 #endif /* _ASM_RISCV_IRQ_H */
diff --git a/arch/riscv/include/asm/timex.h b/arch/riscv/include/asm/timex.h
index d6a7428f6248..a06697846e69 100644
--- a/arch/riscv/include/asm/timex.h
+++ b/arch/riscv/include/asm/timex.h
@@ -88,6 +88,4 @@ static inline int read_current_timer(unsigned long *timer_val)
 	return 0;
 }

-extern void time_init(void);
-
 #endif /* _ASM_RISCV_TIMEX_H */

Reviewed-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx> # RISC-V
Acked-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx> # RISC-V

Thanks!





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