summaryrefslogtreecommitdiff
path: root/arch/nios2/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/nios2/kernel')
-rw-r--r--arch/nios2/kernel/Makefile4
-rw-r--r--arch/nios2/kernel/Makefile.syscalls3
-rw-r--r--arch/nios2/kernel/asm-offsets.c1
-rw-r--r--arch/nios2/kernel/cpuinfo.c15
-rw-r--r--arch/nios2/kernel/entry.S28
-rw-r--r--arch/nios2/kernel/irq.c9
-rw-r--r--arch/nios2/kernel/misaligned.c2
-rw-r--r--arch/nios2/kernel/module.c20
-rw-r--r--arch/nios2/kernel/process.c18
-rw-r--r--arch/nios2/kernel/prom.c10
-rw-r--r--arch/nios2/kernel/ptrace.c13
-rw-r--r--arch/nios2/kernel/setup.c31
-rw-r--r--arch/nios2/kernel/signal.c27
-rw-r--r--arch/nios2/kernel/syscall_table.c8
-rw-r--r--arch/nios2/kernel/traps.c9
-rw-r--r--arch/nios2/kernel/vmlinux.lds.S1
16 files changed, 102 insertions, 97 deletions
diff --git a/arch/nios2/kernel/Makefile b/arch/nios2/kernel/Makefile
index 0b645e1e3158..4dce965a7b73 100644
--- a/arch/nios2/kernel/Makefile
+++ b/arch/nios2/kernel/Makefile
@@ -3,9 +3,9 @@
# Makefile for the nios2 linux kernel.
#
-extra-y += head.o
-extra-y += vmlinux.lds
+always-$(KBUILD_BUILTIN) += vmlinux.lds
+obj-y += head.o
obj-y += cpuinfo.o
obj-y += entry.o
obj-y += insnemu.o
diff --git a/arch/nios2/kernel/Makefile.syscalls b/arch/nios2/kernel/Makefile.syscalls
new file mode 100644
index 000000000000..579a9daec272
--- /dev/null
+++ b/arch/nios2/kernel/Makefile.syscalls
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+
+syscall_abis_32 += nios2 time32 stat64 renameat rlimit
diff --git a/arch/nios2/kernel/asm-offsets.c b/arch/nios2/kernel/asm-offsets.c
index e3d9b7b6fb48..88190b503ce5 100644
--- a/arch/nios2/kernel/asm-offsets.c
+++ b/arch/nios2/kernel/asm-offsets.c
@@ -2,6 +2,7 @@
/*
* Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
*/
+#define COMPILE_OFFSETS
#include <linux/stddef.h>
#include <linux/sched.h>
diff --git a/arch/nios2/kernel/cpuinfo.c b/arch/nios2/kernel/cpuinfo.c
index 203870c4b86d..55882feb6249 100644
--- a/arch/nios2/kernel/cpuinfo.c
+++ b/arch/nios2/kernel/cpuinfo.c
@@ -46,10 +46,7 @@ void __init setup_cpuinfo(void)
cpuinfo.cpu_clock_freq = fcpu(cpu, "clock-frequency");
str = of_get_property(cpu, "altr,implementation", &len);
- if (str)
- strlcpy(cpuinfo.cpu_impl, str, sizeof(cpuinfo.cpu_impl));
- else
- strcpy(cpuinfo.cpu_impl, "<unknown>");
+ strscpy(cpuinfo.cpu_impl, str ?: "<unknown>");
cpuinfo.has_div = of_property_read_bool(cpu, "altr,has-div");
cpuinfo.has_mul = of_property_read_bool(cpu, "altr,has-mul");
@@ -143,11 +140,11 @@ static int show_cpuinfo(struct seq_file *m, void *v)
" DIV:\t\t%s\n"
" BMX:\t\t%s\n"
" CDX:\t\t%s\n",
- cpuinfo.has_mul ? "yes" : "no",
- cpuinfo.has_mulx ? "yes" : "no",
- cpuinfo.has_div ? "yes" : "no",
- cpuinfo.has_bmx ? "yes" : "no",
- cpuinfo.has_cdx ? "yes" : "no");
+ str_yes_no(cpuinfo.has_mul),
+ str_yes_no(cpuinfo.has_mulx),
+ str_yes_no(cpuinfo.has_div),
+ str_yes_no(cpuinfo.has_bmx),
+ str_yes_no(cpuinfo.has_cdx));
seq_printf(m,
"Icache:\t\t%ukB, line length: %u\n",
diff --git a/arch/nios2/kernel/entry.S b/arch/nios2/kernel/entry.S
index 0794cd7803df..dd40dfd908e5 100644
--- a/arch/nios2/kernel/entry.S
+++ b/arch/nios2/kernel/entry.S
@@ -185,6 +185,7 @@ ENTRY(handle_system_call)
ldw r5, PT_R5(sp)
local_restart:
+ stw r2, PT_ORIG_R2(sp)
/* Check that the requested system call is within limits */
movui r1, __NR_syscalls
bgeu r2, r1, ret_invsyscall
@@ -192,7 +193,6 @@ local_restart:
movhi r11, %hiadj(sys_call_table)
add r1, r1, r11
ldw r1, %lo(sys_call_table)(r1)
- beq r1, r0, ret_invsyscall
/* Check if we are being traced */
GET_THREAD_INFO r11
@@ -213,6 +213,9 @@ local_restart:
translate_rc_and_ret:
movi r1, 0
bge r2, zero, 3f
+ ldw r1, PT_ORIG_R2(sp)
+ addi r1, r1, 1
+ beq r1, zero, 3f
sub r2, zero, r2
movi r1, 1
3:
@@ -255,9 +258,9 @@ traced_system_call:
ldw r6, PT_R6(sp)
ldw r7, PT_R7(sp)
- /* Fetch the syscall function, we don't need to check the boundaries
- * since this is already done.
- */
+ /* Fetch the syscall function. */
+ movui r1, __NR_syscalls
+ bgeu r2, r1, traced_invsyscall
slli r1, r2, 2
movhi r11,%hiadj(sys_call_table)
add r1, r1, r11
@@ -276,6 +279,9 @@ traced_system_call:
translate_rc_and_ret2:
movi r1, 0
bge r2, zero, 4f
+ ldw r1, PT_ORIG_R2(sp)
+ addi r1, r1, 1
+ beq r1, zero, 4f
sub r2, zero, r2
movi r1, 1
4:
@@ -287,6 +293,11 @@ end_translate_rc_and_ret2:
RESTORE_SWITCH_STACK
br ret_from_exception
+ /* If the syscall number was invalid return ENOSYS */
+traced_invsyscall:
+ movi r2, -ENOSYS
+ br translate_rc_and_ret2
+
Luser_return:
GET_THREAD_INFO r11 /* get thread_info pointer */
ldw r10, TI_FLAGS(r11) /* get thread_info->flags */
@@ -336,9 +347,6 @@ external_interrupt:
/* skip if no interrupt is pending */
beq r12, r0, ret_from_interrupt
- movi r24, -1
- stw r24, PT_ORIG_R2(sp)
-
/*
* Process an external hardware interrupt.
*/
@@ -395,6 +403,12 @@ ENTRY(sys_clone)
addi sp, sp, 4
RESTORE_SWITCH_STACK
ret
+/* long syscall(SYS_clone3, struct clone_args *cl_args, size_t size); */
+ENTRY(__sys_clone3)
+ SAVE_SWITCH_STACK
+ call sys_clone3
+ RESTORE_SWITCH_STACK
+ ret
ENTRY(sys_rt_sigreturn)
SAVE_SWITCH_STACK
diff --git a/arch/nios2/kernel/irq.c b/arch/nios2/kernel/irq.c
index c6a1a9f6ac42..73568d8e21e0 100644
--- a/arch/nios2/kernel/irq.c
+++ b/arch/nios2/kernel/irq.c
@@ -19,11 +19,9 @@ static u32 ienable;
asmlinkage void do_IRQ(int hwirq, struct pt_regs *regs)
{
struct pt_regs *oldregs = set_irq_regs(regs);
- int irq;
irq_enter();
- irq = irq_find_mapping(NULL, hwirq);
- generic_handle_irq(irq);
+ generic_handle_domain_irq(NULL, hwirq);
irq_exit();
set_irq_regs(oldregs);
@@ -71,10 +69,11 @@ void __init init_IRQ(void)
BUG_ON(!node);
- domain = irq_domain_add_linear(node, NIOS2_CPU_NR_IRQS, &irq_ops, NULL);
+ domain = irq_domain_create_linear(of_fwnode_handle(node),
+ NIOS2_CPU_NR_IRQS, &irq_ops, NULL);
BUG_ON(!domain);
- irq_set_default_host(domain);
+ irq_set_default_domain(domain);
of_node_put(node);
/* Load the initial ienable value */
ienable = RDCTL(CTL_IENABLE);
diff --git a/arch/nios2/kernel/misaligned.c b/arch/nios2/kernel/misaligned.c
index 23e0544e117c..2f2862eab3c6 100644
--- a/arch/nios2/kernel/misaligned.c
+++ b/arch/nios2/kernel/misaligned.c
@@ -23,7 +23,7 @@
#include <linux/seq_file.h>
#include <asm/traps.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
/* instructions we emulate */
#define INST_LDHU 0x0b
diff --git a/arch/nios2/kernel/module.c b/arch/nios2/kernel/module.c
index 76e0a42d6e36..f4483243578d 100644
--- a/arch/nios2/kernel/module.c
+++ b/arch/nios2/kernel/module.c
@@ -13,7 +13,6 @@
#include <linux/moduleloader.h>
#include <linux/elf.h>
#include <linux/mm.h>
-#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/string.h>
@@ -21,25 +20,6 @@
#include <asm/cacheflush.h>
-/*
- * Modules should NOT be allocated with kmalloc for (obvious) reasons.
- * But we do it for now to avoid relocation issues. CALL26/PCREL26 cannot reach
- * from 0x80000000 (vmalloc area) to 0xc00000000 (kernel) (kmalloc returns
- * addresses in 0xc0000000)
- */
-void *module_alloc(unsigned long size)
-{
- if (size == 0)
- return NULL;
- return kmalloc(size, GFP_KERNEL);
-}
-
-/* Free memory returned from module_alloc */
-void module_memfree(void *module_region)
-{
- kfree(module_region);
-}
-
int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
unsigned int symindex, unsigned int relsec,
struct module *mod)
diff --git a/arch/nios2/kernel/process.c b/arch/nios2/kernel/process.c
index 9ff37ba2bb60..151404139085 100644
--- a/arch/nios2/kernel/process.c
+++ b/arch/nios2/kernel/process.c
@@ -33,7 +33,6 @@ EXPORT_SYMBOL(pm_power_off);
void arch_cpu_idle(void)
{
- raw_local_irq_enable();
}
/*
@@ -100,21 +99,23 @@ void flush_thread(void)
{
}
-int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg,
- struct task_struct *p, unsigned long tls)
+int copy_thread(struct task_struct *p, const struct kernel_clone_args *args)
{
+ u64 clone_flags = args->flags;
+ unsigned long usp = args->stack;
+ unsigned long tls = args->tls;
struct pt_regs *childregs = task_pt_regs(p);
struct pt_regs *regs;
struct switch_stack *stack;
struct switch_stack *childstack =
((struct switch_stack *)childregs) - 1;
- if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
+ if (unlikely(args->fn)) {
memset(childstack, 0,
sizeof(struct switch_stack) + sizeof(struct pt_regs));
- childstack->r16 = usp; /* fn */
- childstack->r17 = arg;
+ childstack->r16 = (unsigned long) args->fn;
+ childstack->r17 = (unsigned long) args->fn_arg;
childstack->ra = (unsigned long) ret_from_kernel_thread;
childregs->estatus = STATUS_PIE;
childregs->sp = (unsigned long) childstack;
@@ -217,15 +218,12 @@ void dump(struct pt_regs *fp)
pr_emerg("\n\n");
}
-unsigned long get_wchan(struct task_struct *p)
+unsigned long __get_wchan(struct task_struct *p)
{
unsigned long fp, pc;
unsigned long stack_page;
int count = 0;
- if (!p || p == current || task_is_running(p))
- return 0;
-
stack_page = (unsigned long)p;
fp = ((struct switch_stack *)p->thread.ksp)->fp; /* ;dgt2 */
do {
diff --git a/arch/nios2/kernel/prom.c b/arch/nios2/kernel/prom.c
index 8d98af5c7201..4f8c14da6490 100644
--- a/arch/nios2/kernel/prom.c
+++ b/arch/nios2/kernel/prom.c
@@ -21,17 +21,21 @@
void __init early_init_devtree(void *params)
{
- __be32 *dtb = (u32 *)__dtb_start;
+ __be32 __maybe_unused *dtb = (u32 *)__dtb_start;
+
#if defined(CONFIG_NIOS2_DTB_AT_PHYS_ADDR)
if (be32_to_cpup((__be32 *)CONFIG_NIOS2_DTB_PHYS_ADDR) ==
OF_DT_HEADER) {
params = (void *)CONFIG_NIOS2_DTB_PHYS_ADDR;
- early_init_dt_scan(params);
+ early_init_dt_scan(params, __pa(params));
return;
}
#endif
+
+#ifdef CONFIG_BUILTIN_DTB
if (be32_to_cpu((__be32) *dtb) == OF_DT_HEADER)
params = (void *)__dtb_start;
+#endif
- early_init_dt_scan(params);
+ early_init_dt_scan(params, __pa(params));
}
diff --git a/arch/nios2/kernel/ptrace.c b/arch/nios2/kernel/ptrace.c
index a6ea9e1b4f61..c88f5cabc0c1 100644
--- a/arch/nios2/kernel/ptrace.c
+++ b/arch/nios2/kernel/ptrace.c
@@ -15,7 +15,6 @@
#include <linux/regset.h>
#include <linux/sched.h>
#include <linux/sched/task_stack.h>
-#include <linux/tracehook.h>
#include <linux/uaccess.h>
#include <linux/user.h>
@@ -55,7 +54,7 @@ static int genregs_set(struct task_struct *target,
#define REG_IGNORE_RANGE(START, END) \
if (!ret) \
- ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, \
+ user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, \
START * 4, (END * 4) + 4);
#define REG_IN_ONE(PTR, LOC) \
@@ -81,8 +80,8 @@ static int genregs_set(struct task_struct *target,
REG_IN_ONE(&regs->ra, PTR_RA);
REG_IN_ONE(&regs->ea, PTR_PC); /* use ea for PC */
if (!ret)
- ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
- PTR_STATUS * 4, -1);
+ user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+ PTR_STATUS * 4, -1);
return ret;
}
@@ -96,7 +95,7 @@ enum nios2_regset {
static const struct user_regset nios2_regsets[] = {
[REGSET_GENERAL] = {
- .core_note_type = NT_PRSTATUS,
+ USER_REGSET_NOTE_TYPE(PRSTATUS),
.n = NUM_PTRACE_REG,
.size = sizeof(unsigned long),
.align = sizeof(unsigned long),
@@ -134,7 +133,7 @@ asmlinkage int do_syscall_trace_enter(void)
int ret = 0;
if (test_thread_flag(TIF_SYSCALL_TRACE))
- ret = tracehook_report_syscall_entry(task_pt_regs(current));
+ ret = ptrace_report_syscall_entry(task_pt_regs(current));
return ret;
}
@@ -142,5 +141,5 @@ asmlinkage int do_syscall_trace_enter(void)
asmlinkage void do_syscall_trace_exit(void)
{
if (test_thread_flag(TIF_SYSCALL_TRACE))
- tracehook_report_syscall_exit(task_pt_regs(current), 0);
+ ptrace_report_syscall_exit(task_pt_regs(current), 0);
}
diff --git a/arch/nios2/kernel/setup.c b/arch/nios2/kernel/setup.c
index cf8d687a2644..f43f01c4ab93 100644
--- a/arch/nios2/kernel/setup.c
+++ b/arch/nios2/kernel/setup.c
@@ -19,7 +19,6 @@
#include <linux/memblock.h>
#include <linux/initrd.h>
#include <linux/of_fdt.h>
-#include <linux/screen_info.h>
#include <asm/mmu_context.h>
#include <asm/sections.h>
@@ -36,10 +35,6 @@ static struct pt_regs fake_regs = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
0};
-#ifdef CONFIG_VT
-struct screen_info screen_info;
-#endif
-
/* Copy a short hook instruction sequence to the exception address */
static inline void copy_exception_handler(unsigned int addr)
{
@@ -121,7 +116,7 @@ asmlinkage void __init nios2_boot_init(unsigned r4, unsigned r5, unsigned r6,
dtb_passed = r6;
if (r7)
- strlcpy(cmdline_passed, (char *)r7, COMMAND_LINE_SIZE);
+ strscpy(cmdline_passed, (char *)r7, COMMAND_LINE_SIZE);
}
#endif
@@ -129,10 +124,10 @@ asmlinkage void __init nios2_boot_init(unsigned r4, unsigned r5, unsigned r6,
#ifndef CONFIG_CMDLINE_FORCE
if (cmdline_passed[0])
- strlcpy(boot_command_line, cmdline_passed, COMMAND_LINE_SIZE);
+ strscpy(boot_command_line, cmdline_passed, COMMAND_LINE_SIZE);
#ifdef CONFIG_NIOS2_CMDLINE_IGNORE_DTB
else
- strlcpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+ strscpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
#endif
#endif
@@ -147,23 +142,37 @@ static void __init find_limits(unsigned long *min, unsigned long *max_low,
*max_high = PFN_DOWN(memblock_end_of_DRAM());
}
-void __init setup_arch(char **cmdline_p)
+static void __init adjust_lowmem_bounds(void)
{
- int dram_start;
+ phys_addr_t block_start, block_end;
+ u64 i;
+ phys_addr_t memblock_limit = 0;
+
+ for_each_mem_range(i, &block_start, &block_end) {
+ if (block_end > memblock_limit)
+ memblock_limit = block_end;
+ }
+ memblock_set_current_limit(memblock_limit);
+}
+
+void __init setup_arch(char **cmdline_p)
+{
console_verbose();
memory_start = memblock_start_of_DRAM();
memory_end = memblock_end_of_DRAM();
+ pr_debug("%s: start=%lx, end=%lx\n", __func__, memory_start, memory_end);
+
setup_initial_init_mm(_stext, _etext, _edata, _end);
init_task.thread.kregs = &fake_regs;
/* Keep a copy of command line */
*cmdline_p = boot_command_line;
+ adjust_lowmem_bounds();
find_limits(&min_low_pfn, &max_low_pfn, &max_pfn);
- max_mapnr = max_low_pfn;
memblock_reserve(__pa_symbol(_stext), _end - _stext);
#ifdef CONFIG_BLK_DEV_INITRD
diff --git a/arch/nios2/kernel/signal.c b/arch/nios2/kernel/signal.c
index 2009ae2d3c3b..a5b93a30c6eb 100644
--- a/arch/nios2/kernel/signal.c
+++ b/arch/nios2/kernel/signal.c
@@ -15,7 +15,7 @@
#include <linux/uaccess.h>
#include <linux/unistd.h>
#include <linux/personality.h>
-#include <linux/tracehook.h>
+#include <linux/resume_user_mode.h>
#include <asm/ucontext.h>
#include <asm/cacheflush.h>
@@ -36,10 +36,10 @@ struct rt_sigframe {
static inline int rt_restore_ucontext(struct pt_regs *regs,
struct switch_stack *sw,
- struct ucontext *uc, int *pr2)
+ struct ucontext __user *uc, int *pr2)
{
int temp;
- unsigned long *gregs = uc->uc_mcontext.gregs;
+ unsigned long __user *gregs = uc->uc_mcontext.gregs;
int err;
/* Always make any pending restarted system calls return -EINTR */
@@ -102,10 +102,11 @@ asmlinkage int do_rt_sigreturn(struct switch_stack *sw)
{
struct pt_regs *regs = (struct pt_regs *)(sw + 1);
/* Verify, can we follow the stack back */
- struct rt_sigframe *frame = (struct rt_sigframe *) regs->sp;
+ struct rt_sigframe __user *frame;
sigset_t set;
int rval;
+ frame = (struct rt_sigframe __user *) regs->sp;
if (!access_ok(frame, sizeof(*frame)))
goto badframe;
@@ -124,10 +125,10 @@ badframe:
return 0;
}
-static inline int rt_setup_ucontext(struct ucontext *uc, struct pt_regs *regs)
+static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs)
{
struct switch_stack *sw = (struct switch_stack *)regs - 1;
- unsigned long *gregs = uc->uc_mcontext.gregs;
+ unsigned long __user *gregs = uc->uc_mcontext.gregs;
int err = 0;
err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version);
@@ -162,8 +163,9 @@ static inline int rt_setup_ucontext(struct ucontext *uc, struct pt_regs *regs)
return err;
}
-static inline void *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
- size_t frame_size)
+static inline void __user *get_sigframe(struct ksignal *ksig,
+ struct pt_regs *regs,
+ size_t frame_size)
{
unsigned long usp;
@@ -174,13 +176,13 @@ static inline void *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
usp = sigsp(usp, ksig);
/* Verify, is it 32 or 64 bit aligned */
- return (void *)((usp - frame_size) & -8UL);
+ return (void __user *)((usp - frame_size) & -8UL);
}
static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
struct pt_regs *regs)
{
- struct rt_sigframe *frame;
+ struct rt_sigframe __user *frame;
int err = 0;
frame = get_sigframe(ksig, regs, sizeof(*frame));
@@ -240,7 +242,7 @@ static int do_signal(struct pt_regs *regs)
/*
* If we were from a system call, check for system call restarting...
*/
- if (regs->orig_r2 >= 0) {
+ if (regs->orig_r2 >= 0 && regs->r1) {
continue_addr = regs->ea;
restart_addr = continue_addr - 4;
retval = regs->r2;
@@ -262,6 +264,7 @@ static int do_signal(struct pt_regs *regs)
regs->ea = restart_addr;
break;
}
+ regs->orig_r2 = -1;
}
if (get_signal(&ksig)) {
@@ -319,7 +322,7 @@ asmlinkage int do_notify_resume(struct pt_regs *regs)
return restart;
}
} else if (test_thread_flag(TIF_NOTIFY_RESUME))
- tracehook_notify_resume(regs);
+ resume_user_mode_work(regs);
return 0;
}
diff --git a/arch/nios2/kernel/syscall_table.c b/arch/nios2/kernel/syscall_table.c
index 6176d63023c1..c99818aac9e1 100644
--- a/arch/nios2/kernel/syscall_table.c
+++ b/arch/nios2/kernel/syscall_table.c
@@ -9,9 +9,13 @@
#include <asm/syscalls.h>
-#undef __SYSCALL
#define __SYSCALL(nr, call) [nr] = (call),
+#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native)
+
+#define sys_mmap2 sys_mmap_pgoff
+#define sys_clone3 __sys_clone3
void *sys_call_table[__NR_syscalls] = {
-#include <asm/unistd.h>
+ [0 ... __NR_syscalls-1] = sys_ni_syscall,
+#include <asm/syscall_table_32.h>
};
diff --git a/arch/nios2/kernel/traps.c b/arch/nios2/kernel/traps.c
index b172da4eb1a9..85ac49d64cf7 100644
--- a/arch/nios2/kernel/traps.c
+++ b/arch/nios2/kernel/traps.c
@@ -37,10 +37,10 @@ void die(const char *str, struct pt_regs *regs, long err)
show_regs(regs);
spin_unlock_irq(&die_lock);
/*
- * do_exit() should take care of panic'ing from an interrupt
+ * make_task_dead() should take care of panic'ing from an interrupt
* context so we don't handle it here
*/
- do_exit(err);
+ make_task_dead(err);
}
void _exception(int signo, struct pt_regs *regs, int code, unsigned long addr)
@@ -105,11 +105,6 @@ void show_stack(struct task_struct *task, unsigned long *stack,
printk("%s\n", loglvl);
}
-void __init trap_init(void)
-{
- /* Nothing to do here */
-}
-
/* Breakpoint handler */
asmlinkage void breakpoint_c(struct pt_regs *fp)
{
diff --git a/arch/nios2/kernel/vmlinux.lds.S b/arch/nios2/kernel/vmlinux.lds.S
index 126e114744cb..37b958055064 100644
--- a/arch/nios2/kernel/vmlinux.lds.S
+++ b/arch/nios2/kernel/vmlinux.lds.S
@@ -24,7 +24,6 @@ SECTIONS
.text : {
TEXT_TEXT
SCHED_TEXT
- CPUIDLE_TEXT
LOCK_TEXT
IRQENTRY_TEXT
SOFTIRQENTRY_TEXT