diff mbox series

[11/16] ARM: move setup functions to header

Message ID 20230516154605.517690-12-arnd@kernel.org
State New
Headers show
Series ARM: address -Wmissing-prototype warnings | expand

Commit Message

Arnd Bergmann May 16, 2023, 3:46 p.m. UTC 
From: Arnd Bergmann <arnd@arndb.de>

A couple of functions are declared in arch/arm/mm/mmu.c rather than in a header,
which causes W=1 build warnings:

arch/arm/mm/init.c:97:13: error: no previous prototype for 'setup_dma_zone' [-Werror=missing-prototypes]
arch/arm/mm/mmu.c:118:13: error: no previous prototype for 'init_default_cache_policy' [-Werror=missing-prototypes]
arch/arm/mm/mmu.c:1195:13: error: no previous prototype for 'adjust_lowmem_bounds' [-Werror=missing-prototypes]
arch/arm/mm/mmu.c:1761:13: error: no previous prototype for 'paging_init' [-Werror=missing-prototypes]
arch/arm/mm/mmu.c:1794:13: error: no previous prototype for 'early_mm_init' [-Werror=missing-prototypes]

Move the declaratsion to asm/setup.h so they can be seen by the compiler
while building the definition.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/include/asm/setup.h | 7 +++++++
 arch/arm/kernel/setup.c      | 7 -------
 2 files changed, 7 insertions(+), 7 deletions(-)

Comments

Linus Walleij May 22, 2023, 7:35 a.m. UTC | #1 
On Tue, May 16, 2023 at 5:46 PM Arnd Bergmann <arnd@kernel.org> wrote:

> From: Arnd Bergmann <arnd@arndb.de>
>
> A couple of functions are declared in arch/arm/mm/mmu.c rather than in a header,
> which causes W=1 build warnings:
>
> arch/arm/mm/init.c:97:13: error: no previous prototype for 'setup_dma_zone' [-Werror=missing-prototypes]
> arch/arm/mm/mmu.c:118:13: error: no previous prototype for 'init_default_cache_policy' [-Werror=missing-prototypes]
> arch/arm/mm/mmu.c:1195:13: error: no previous prototype for 'adjust_lowmem_bounds' [-Werror=missing-prototypes]
> arch/arm/mm/mmu.c:1761:13: error: no previous prototype for 'paging_init' [-Werror=missing-prototypes]
> arch/arm/mm/mmu.c:1794:13: error: no previous prototype for 'early_mm_init' [-Werror=missing-prototypes]
>
> Move the declaratsion to asm/setup.h so they can be seen by the compiler
> while building the definition.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This looks cleaner to me:
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij
diff mbox series

Patch

diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h
index ba0872a8dcda..28ca2a17394a 100644
--- a/arch/arm/include/asm/setup.h
+++ b/arch/arm/include/asm/setup.h
@@ -28,4 +28,11 @@  extern void save_atags(const struct tag *tags);
 static inline void save_atags(const struct tag *tags) { }
 #endif
 
+struct machine_desc;
+void init_default_cache_policy(unsigned long);
+void paging_init(const struct machine_desc *desc);
+void early_mm_init(const struct machine_desc *);
+void adjust_lowmem_bounds(void);
+void setup_dma_zone(const struct machine_desc *desc);
+
 #endif
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 75cd4699e7b3..703233a7bfe3 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -76,13 +76,6 @@  static int __init fpe_setup(char *line)
 __setup("fpe=", fpe_setup);
 #endif
 
-extern void init_default_cache_policy(unsigned long);
-extern void paging_init(const struct machine_desc *desc);
-extern void early_mm_init(const struct machine_desc *);
-extern void adjust_lowmem_bounds(void);
-extern enum reboot_mode reboot_mode;
-extern void setup_dma_zone(const struct machine_desc *desc);
-
 unsigned int processor_id;
 EXPORT_SYMBOL(processor_id);
 unsigned int __machine_arch_type __read_mostly;