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authorBibo Mao <maobibo@loongson.cn>2023-09-20 08:26:28 +0200
committerHuacai Chen <chenhuacai@loongson.cn>2023-09-20 08:26:28 +0200
commitc718a0bad75ccef117000223b00fd6a14f849135 (patch)
treee55a19335a894d60cb496a75847974354b732807 /arch/loongarch/kernel/traps.c
parentLoongArch: Fix lockdep static memory detection (diff)
downloadlinux-c718a0bad75ccef117000223b00fd6a14f849135.tar.xz
linux-c718a0bad75ccef117000223b00fd6a14f849135.zip
LoongArch: Fix some build warnings with W=1
There are some building warnings when building LoongArch kernel with W=1 as following, this patch fixes them. arch/loongarch/kernel/acpi.c:284:13: warning: no previous prototype for ‘acpi_numa_arch_fixup’ [-Wmissing-prototypes] 284 | void __init acpi_numa_arch_fixup(void) {} | ^~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/time.c:32:13: warning: no previous prototype for ‘constant_timer_interrupt’ [-Wmissing-prototypes] 32 | irqreturn_t constant_timer_interrupt(int irq, void *data) | ^~~~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/traps.c:496:25: warning: no previous prototype for 'do_fpe' [-Wmissing-prototypes] 496 | asmlinkage void noinstr do_fpe(struct pt_regs *regs | ^~~~~~ arch/loongarch/kernel/traps.c:813:22: warning: variable ‘opcode’ set but not used [-Wunused-but-set-variable] 813 | unsigned int opcode; | ^~~~~~ arch/loongarch/kernel/signal.c:895:14: warning: no previous prototype for ‘get_sigframe’ [-Wmissing-prototypes] 895 | void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, | ^~~~~~~~~~~~ arch/loongarch/kernel/syscall.c:21:40: warning: initialized field overwritten [-Woverride-init] 21 | #define __SYSCALL(nr, call) [nr] = (call), | ^ arch/loongarch/kernel/syscall.c:40:14: warning: no previous prototype for ‘do_syscall’ [-Wmissing-prototypes] 40 | void noinstr do_syscall(struct pt_regs *regs) | ^~~~~~~~~~ arch/loongarch/kernel/smp.c:502:17: warning: no previous prototype for ‘start_secondary’ [-Wmissing-prototypes] 502 | asmlinkage void start_secondary(void) | ^~~~~~~~~~~~~~~ arch/loongarch/kernel/process.c:309:15: warning: no previous prototype for ‘arch_align_stack’ [-Wmissing-prototypes] 309 | unsigned long arch_align_stack(unsigned long sp) | ^~~~~~~~~~~~~~~~ arch/loongarch/kernel/topology.c:13:5: warning: no previous prototype for ‘arch_register_cpu’ [-Wmissing-prototypes] 13 | int arch_register_cpu(int cpu) | ^~~~~~~~~~~~~~~~~ arch/loongarch/kernel/topology.c:27:6: warning: no previous prototype for ‘arch_unregister_cpu’ [-Wmissing-prototypes] 27 | void arch_unregister_cpu(int cpu) | ^~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/module-sections.c:103:5: warning: no previous prototype for ‘module_frob_arch_sections’ [-Wmissing-prototypes] 103 | int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, | ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/mm/hugetlbpage.c:56:5: warning: no previous prototype for ‘is_aligned_hugepage_range’ [-Wmissing-prototypes] 56 | int is_aligned_hugepage_range(unsigned long addr, unsigned long len) | ^~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/kernel/traps.c')
-rw-r--r--arch/loongarch/kernel/traps.c25
1 files changed, 5 insertions, 20 deletions
diff --git a/arch/loongarch/kernel/traps.c b/arch/loongarch/kernel/traps.c
index 65214774ef7c..aebfc3733a76 100644
--- a/arch/loongarch/kernel/traps.c
+++ b/arch/loongarch/kernel/traps.c
@@ -25,7 +25,6 @@
#include <linux/ptrace.h>
#include <linux/kgdb.h>
#include <linux/kdebug.h>
-#include <linux/kprobes.h>
#include <linux/notifier.h>
#include <linux/irq.h>
#include <linux/perf_event.h>
@@ -35,6 +34,7 @@
#include <asm/branch.h>
#include <asm/break.h>
#include <asm/cpu.h>
+#include <asm/exception.h>
#include <asm/fpu.h>
#include <asm/lbt.h>
#include <asm/inst.h>
@@ -53,21 +53,6 @@
#include "access-helper.h"
-extern asmlinkage void handle_ade(void);
-extern asmlinkage void handle_ale(void);
-extern asmlinkage void handle_bce(void);
-extern asmlinkage void handle_sys(void);
-extern asmlinkage void handle_bp(void);
-extern asmlinkage void handle_ri(void);
-extern asmlinkage void handle_fpu(void);
-extern asmlinkage void handle_fpe(void);
-extern asmlinkage void handle_lbt(void);
-extern asmlinkage void handle_lsx(void);
-extern asmlinkage void handle_lasx(void);
-extern asmlinkage void handle_reserved(void);
-extern asmlinkage void handle_watch(void);
-extern asmlinkage void handle_vint(void);
-
static void show_backtrace(struct task_struct *task, const struct pt_regs *regs,
const char *loglvl, bool user)
{
@@ -439,8 +424,8 @@ static inline void setup_vint_size(unsigned int size)
* happen together with Overflow or Underflow, and `ptrace' can set
* any bits.
*/
-void force_fcsr_sig(unsigned long fcsr, void __user *fault_addr,
- struct task_struct *tsk)
+static void force_fcsr_sig(unsigned long fcsr,
+ void __user *fault_addr, struct task_struct *tsk)
{
int si_code = FPE_FLTUNK;
@@ -458,7 +443,7 @@ void force_fcsr_sig(unsigned long fcsr, void __user *fault_addr,
force_sig_fault(SIGFPE, si_code, fault_addr);
}
-int process_fpemu_return(int sig, void __user *fault_addr, unsigned long fcsr)
+static int process_fpemu_return(int sig, void __user *fault_addr, unsigned long fcsr)
{
int si_code;
@@ -824,7 +809,7 @@ out:
asmlinkage void noinstr do_ri(struct pt_regs *regs)
{
int status = SIGILL;
- unsigned int opcode = 0;
+ unsigned int __maybe_unused opcode;
unsigned int __user *era = (unsigned int __user *)exception_era(regs);
irqentry_state_t state = irqentry_enter(regs);