2020-09-23 03:29:09

by Pujin Shi

[permalink] [raw]
Subject: [PATCH] MIPS: irq: Add missing prototypes for init_IRQ()

init_IRQ() have no prototype, add one in irq.h

Fix the following warnings (treated as error in W=1):
arch/mips/kernel/irq.c:52:13: error: no previous prototype for 'init_IRQ' [-Werror=missing-prototypes]

Signed-off-by: Pujin Shi <[email protected]>
---
arch/mips/include/asm/irq.h | 1 +
arch/mips/kernel/irq.c | 1 +
2 files changed, 2 insertions(+)

diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index c5d351786416..992f8040d3d9 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -21,6 +21,7 @@
#define IRQ_STACK_START (IRQ_STACK_SIZE - 16)

extern void *irq_stack[NR_CPUS];
+void init_IRQ(void);

/*
* The highest address on the IRQ stack contains a dummy frame put down in
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index 85b6c60f285d..07d2c86e7ff5 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -21,6 +21,7 @@
#include <linux/kallsyms.h>
#include <linux/kgdb.h>
#include <linux/ftrace.h>
+#include <asm/irq.h>

#include <linux/atomic.h>
#include <linux/uaccess.h>
--
2.18.1


2020-09-27 09:12:27

by Thomas Bogendoerfer

[permalink] [raw]
Subject: Re: [PATCH] MIPS: irq: Add missing prototypes for init_IRQ()

On Wed, Sep 23, 2020 at 11:26:50AM +0800, Pujin Shi wrote:
> init_IRQ() have no prototype, add one in irq.h
>
> Fix the following warnings (treated as error in W=1):
> arch/mips/kernel/irq.c:52:13: error: no previous prototype for 'init_IRQ' [-Werror=missing-prototypes]
>
> Signed-off-by: Pujin Shi <[email protected]>
> ---
> arch/mips/include/asm/irq.h | 1 +
> arch/mips/kernel/irq.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
> index c5d351786416..992f8040d3d9 100644
> --- a/arch/mips/include/asm/irq.h
> +++ b/arch/mips/include/asm/irq.h
> @@ -21,6 +21,7 @@
> #define IRQ_STACK_START (IRQ_STACK_SIZE - 16)
>
> extern void *irq_stack[NR_CPUS];
> +void init_IRQ(void);

putting it here hasn't any value. If you want to fix this properly,
move the extern void init_IRQ(void) in init/main.c to a common header
file and check that every arch to uses it.

Thomas.

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