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Message-Id: <20230821072007.2698186-2-shorne@gmail.com>
Date: Mon, 21 Aug 2023 08:20:00 +0100
From: Stafford Horne <shorne@...il.com>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Stafford Horne <shorne@...il.com>, Arnd Bergmann <arnd@...db.de>,
Oleg Nesterov <oleg@...hat.com>,
Jonas Bonn <jonas@...thpole.se>,
Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>,
Guo Ren <guoren@...nel.org>,
Palmer Dabbelt <palmer@...osinc.com>,
"Peter Zijlstra (Intel)" <peterz@...radead.org>,
Valentin Schneider <vschneid@...hat.com>,
Al Viro <viro@...iv.linux.org.uk>,
linux-openrisc@...r.kernel.org
Subject: [PATCH 1/8] openrisc: Add missing prototypes for assembly called fnctions
These functions are all called from assembly files so there is no need
for a prototype in a header file, but when compiling with W=1 enabling
-Wmissing-prototypes the compiler warns:
arch/openrisc/kernel/ptrace.c:191:17: error: no previous prototype for 'do_syscall_trace_enter' [-Werror=missing-prototypes]
arch/openrisc/kernel/ptrace.c:210:17: error: no previous prototype for 'do_syscall_trace_leave' [-Werror=missing-prototypes]
arch/openrisc/kernel/signal.c:293:1: error: no previous prototype for 'do_work_pending' [-Werror=missing-prototypes]
arch/openrisc/kernel/signal.c:68:17: error: no previous prototype for '_sys_rt_sigreturn' [-Werror=missing-prototypes]
arch/openrisc/kernel/time.c:111:25: error: no previous prototype for 'timer_interrupt' [-Werror=missing-prototypes]
arch/openrisc/kernel/traps.c:239:17: error: no previous prototype for 'unhandled_exception' [-Werror=missing-prototypes]
arch/openrisc/kernel/traps.c:246:17: error: no previous prototype for 'do_fpe_trap' [-Werror=missing-prototypes]
arch/openrisc/kernel/traps.c:268:17: error: no previous prototype for 'do_trap' [-Werror=missing-prototypes]
arch/openrisc/kernel/traps.c:273:17: error: no previous prototype for 'do_unaligned_access' [-Werror=missing-prototypes]
arch/openrisc/kernel/traps.c:286:17: error: no previous prototype for 'do_bus_fault' [-Werror=missing-prototypes]
arch/openrisc/kernel/traps.c:462:17: error: no previous prototype for 'do_illegal_instruction' [-Werror=missing-prototypes]
arch/openrisc/mm/fault.c:44:17: error: no previous prototype for 'do_page_fault' [-Werror=missing-prototypes]
Since these are not needed in header files, fix these by adding
prototypes to the top of the respective C files.
Reported-by: Arnd Bergmann <arnd@...db.de>
Closes: https://lore.kernel.org/linux-kernel/20230810141947.1236730-17-arnd@kernel.org/
Signed-off-by: Stafford Horne <shorne@...il.com>
---
arch/openrisc/kernel/ptrace.c | 4 ++++
arch/openrisc/kernel/signal.c | 5 +++++
arch/openrisc/kernel/smp.c | 2 ++
arch/openrisc/kernel/time.c | 2 ++
arch/openrisc/kernel/traps.c | 8 ++++++++
arch/openrisc/mm/fault.c | 3 +++
6 files changed, 24 insertions(+)
diff --git a/arch/openrisc/kernel/ptrace.c b/arch/openrisc/kernel/ptrace.c
index 0b7d2ca6ba3b..1eeac3b62e9d 100644
--- a/arch/openrisc/kernel/ptrace.c
+++ b/arch/openrisc/kernel/ptrace.c
@@ -27,6 +27,10 @@
#include <asm/thread_info.h>
#include <asm/page.h>
+asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
+
+asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
+
/*
* Copy the thread state to a regset that can be interpreted by userspace.
*
diff --git a/arch/openrisc/kernel/signal.c b/arch/openrisc/kernel/signal.c
index 2e7257a433ff..3fbf00330043 100644
--- a/arch/openrisc/kernel/signal.c
+++ b/arch/openrisc/kernel/signal.c
@@ -34,6 +34,11 @@ struct rt_sigframe {
unsigned char retcode[16]; /* trampoline code */
};
+asmlinkage long _sys_rt_sigreturn(struct pt_regs *regs);
+
+asmlinkage int do_work_pending(struct pt_regs *regs, unsigned int thread_flags,
+ int syscall);
+
static int restore_sigcontext(struct pt_regs *regs,
struct sigcontext __user *sc)
{
diff --git a/arch/openrisc/kernel/smp.c b/arch/openrisc/kernel/smp.c
index 0a7a059e2dff..1c5a2d71d675 100644
--- a/arch/openrisc/kernel/smp.c
+++ b/arch/openrisc/kernel/smp.c
@@ -23,6 +23,8 @@
#include <asm/cacheflush.h>
#include <asm/time.h>
+asmlinkage __init void secondary_start_kernel(void);
+
static void (*smp_cross_call)(const struct cpumask *, unsigned int);
unsigned long secondary_release = -1;
diff --git a/arch/openrisc/kernel/time.c b/arch/openrisc/kernel/time.c
index 8e26c1af5441..764c7bfb5df3 100644
--- a/arch/openrisc/kernel/time.c
+++ b/arch/openrisc/kernel/time.c
@@ -25,6 +25,8 @@
#include <asm/cpuinfo.h>
#include <asm/time.h>
+irqreturn_t __irq_entry timer_interrupt(struct pt_regs *regs);
+
/* Test the timer ticks to count, used in sync routine */
inline void openrisc_timer_set(unsigned long count)
{
diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c
index 0aa6b07efda1..afa47501118f 100644
--- a/arch/openrisc/kernel/traps.c
+++ b/arch/openrisc/kernel/traps.c
@@ -38,6 +38,14 @@ static int kstack_depth_to_print = 0x180;
int lwa_flag;
static unsigned long __user *lwa_addr;
+asmlinkage void unhandled_exception(struct pt_regs *regs, int ea, int vector);
+asmlinkage void do_trap(struct pt_regs *regs, unsigned long address);
+asmlinkage void do_fpe_trap(struct pt_regs *regs, unsigned long address);
+asmlinkage void do_unaligned_access(struct pt_regs *regs, unsigned long address);
+asmlinkage void do_bus_fault(struct pt_regs *regs, unsigned long address);
+asmlinkage void do_illegal_instruction(struct pt_regs *regs,
+ unsigned long address);
+
static void print_trace(void *data, unsigned long addr, int reliable)
{
const char *loglvl = data;
diff --git a/arch/openrisc/mm/fault.c b/arch/openrisc/mm/fault.c
index a9dcd4381d1a..01dc18aa8410 100644
--- a/arch/openrisc/mm/fault.c
+++ b/arch/openrisc/mm/fault.c
@@ -32,6 +32,9 @@ volatile pgd_t *current_pgd[NR_CPUS];
extern void __noreturn die(char *, struct pt_regs *, long);
+asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long address,
+ unsigned long vector, int write_acc);
+
/*
* This routine handles page faults. It determines the address,
* and the problem, and then passes it off to one of the appropriate
--
2.39.1
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