diff options
Diffstat (limited to 'arch/mips/kernel')
| -rw-r--r-- | arch/mips/kernel/cmpxchg.c | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/idle.c | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/kprobes.c | 36 | ||||
| -rw-r--r-- | arch/mips/kernel/mips-cpc.c | 1 | ||||
| -rw-r--r-- | arch/mips/kernel/perf_event_mipsxx.c | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/setup.c | 17 | ||||
| -rw-r--r-- | arch/mips/kernel/smp.c | 6 |
8 files changed, 48 insertions, 20 deletions
diff --git a/arch/mips/kernel/cmpxchg.c b/arch/mips/kernel/cmpxchg.c index ac9c8cfb2ba9..e974a4954df8 100644 --- a/arch/mips/kernel/cmpxchg.c +++ b/arch/mips/kernel/cmpxchg.c @@ -22,7 +22,7 @@ unsigned long __xchg_small(volatile void *ptr, unsigned long val, unsigned int s /* * Calculate a shift & mask that correspond to the value we wish to - * exchange within the naturally aligned 4 byte integerthat includes + * exchange within the naturally aligned 4 byte integer that includes * it. */ shift = (unsigned long)ptr & 0x3; diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index f0ea92937546..d510f628ee03 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -156,7 +156,7 @@ static inline void check_errata(void) /* * Erratum "RPS May Cause Incorrect Instruction Execution" * This code only handles VPE0, any SMP/RTOS code - * making use of VPE1 will be responsable for that VPE. + * making use of VPE1 will be responsible for that VPE. */ if ((c->processor_id & PRID_REV_MASK) <= PRID_REV_34K_V1_0_2) write_c0_config7(read_c0_config7() | MIPS_CONF7_RPS); diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c index 146d9fa77f75..53adcc1b2ed5 100644 --- a/arch/mips/kernel/idle.c +++ b/arch/mips/kernel/idle.c @@ -228,7 +228,7 @@ void __init check_wait(void) break; /* - * Another rev is incremeting c0_count at a reduced clock + * Another rev is incrementing c0_count at a reduced clock * rate while in WAIT mode. So we basically have the choice * between using the cp0 timer as clocksource or avoiding * the WAIT instruction. Until more details are known, diff --git a/arch/mips/kernel/kprobes.c b/arch/mips/kernel/kprobes.c index 6c7f3b143fdc..316b27d0d2fb 100644 --- a/arch/mips/kernel/kprobes.c +++ b/arch/mips/kernel/kprobes.c @@ -44,10 +44,11 @@ static const union mips_instruction breakpoint2_insn = { DEFINE_PER_CPU(struct kprobe *, current_kprobe); DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); -static int __kprobes insn_has_delayslot(union mips_instruction insn) +static int insn_has_delayslot(union mips_instruction insn) { return __insn_has_delay_slot(insn); } +NOKPROBE_SYMBOL(insn_has_delayslot); /* * insn_has_ll_or_sc function checks whether instruction is ll or sc @@ -56,7 +57,7 @@ static int __kprobes insn_has_delayslot(union mips_instruction insn) * instructions; cannot do much about breakpoint in the middle of * ll/sc pair; it is upto user to avoid those places */ -static int __kprobes insn_has_ll_or_sc(union mips_instruction insn) +static int insn_has_ll_or_sc(union mips_instruction insn) { int ret = 0; @@ -72,8 +73,9 @@ static int __kprobes insn_has_ll_or_sc(union mips_instruction insn) } return ret; } +NOKPROBE_SYMBOL(insn_has_ll_or_sc); -int __kprobes arch_prepare_kprobe(struct kprobe *p) +int arch_prepare_kprobe(struct kprobe *p) { union mips_instruction insn; union mips_instruction prev_insn; @@ -132,26 +134,30 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) out: return ret; } +NOKPROBE_SYMBOL(arch_prepare_kprobe); -void __kprobes arch_arm_kprobe(struct kprobe *p) +void arch_arm_kprobe(struct kprobe *p) { *p->addr = breakpoint_insn; flush_insn_slot(p); } +NOKPROBE_SYMBOL(arch_arm_kprobe); -void __kprobes arch_disarm_kprobe(struct kprobe *p) +void arch_disarm_kprobe(struct kprobe *p) { *p->addr = p->opcode; flush_insn_slot(p); } +NOKPROBE_SYMBOL(arch_disarm_kprobe); -void __kprobes arch_remove_kprobe(struct kprobe *p) +void arch_remove_kprobe(struct kprobe *p) { if (p->ainsn.insn) { free_insn_slot(p->ainsn.insn, 0); p->ainsn.insn = NULL; } } +NOKPROBE_SYMBOL(arch_remove_kprobe); static void save_previous_kprobe(struct kprobe_ctlblk *kcb) { @@ -257,7 +263,7 @@ static void prepare_singlestep(struct kprobe *p, struct pt_regs *regs, * breakpoint trap. In case of branch instructions, the target * epc to be restored. */ -static void __kprobes resume_execution(struct kprobe *p, +static void resume_execution(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb) { @@ -268,8 +274,9 @@ static void __kprobes resume_execution(struct kprobe *p, regs->cp0_epc = orig_epc + 4; } } +NOKPROBE_SYMBOL(resume_execution); -static int __kprobes kprobe_handler(struct pt_regs *regs) +static int kprobe_handler(struct pt_regs *regs) { struct kprobe *p; int ret = 0; @@ -367,6 +374,7 @@ no_kprobe: return ret; } +NOKPROBE_SYMBOL(kprobe_handler); static inline int post_kprobe_handler(struct pt_regs *regs) { @@ -415,7 +423,7 @@ int kprobe_fault_handler(struct pt_regs *regs, int trapnr) /* * Wrapper routine for handling exceptions. */ -int __kprobes kprobe_exceptions_notify(struct notifier_block *self, +int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *data) { @@ -446,6 +454,7 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self, } return ret; } +NOKPROBE_SYMBOL(kprobe_exceptions_notify); /* * Function return probe trampoline: @@ -469,7 +478,7 @@ static void __used kretprobe_trampoline_holder(void) void __kretprobe_trampoline(void); -void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, +void arch_prepare_kretprobe(struct kretprobe_instance *ri, struct pt_regs *regs) { ri->ret_addr = (kprobe_opcode_t *) regs->regs[31]; @@ -478,11 +487,12 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, /* Replace the return addr with trampoline addr */ regs->regs[31] = (unsigned long)__kretprobe_trampoline; } +NOKPROBE_SYMBOL(arch_prepare_kretprobe); /* * Called when the probe at kretprobe trampoline is hit */ -static int __kprobes trampoline_probe_handler(struct kprobe *p, +static int trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs) { instruction_pointer(regs) = __kretprobe_trampoline_handler(regs, NULL); @@ -493,14 +503,16 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p, */ return 1; } +NOKPROBE_SYMBOL(trampoline_probe_handler); -int __kprobes arch_trampoline_kprobe(struct kprobe *p) +int arch_trampoline_kprobe(struct kprobe *p) { if (p->addr == (kprobe_opcode_t *)__kretprobe_trampoline) return 1; return 0; } +NOKPROBE_SYMBOL(arch_trampoline_kprobe); static struct kprobe trampoline_p = { .addr = (kprobe_opcode_t *)__kretprobe_trampoline, diff --git a/arch/mips/kernel/mips-cpc.c b/arch/mips/kernel/mips-cpc.c index 17aff13cd7ce..3e386f7e1545 100644 --- a/arch/mips/kernel/mips-cpc.c +++ b/arch/mips/kernel/mips-cpc.c @@ -28,6 +28,7 @@ phys_addr_t __weak mips_cpc_default_phys_base(void) cpc_node = of_find_compatible_node(of_root, NULL, "mti,mips-cpc"); if (cpc_node) { err = of_address_to_resource(cpc_node, 0, &res); + of_node_put(cpc_node); if (!err) return res.start; } diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c index 1641d274fe37..c4d6b09136b1 100644 --- a/arch/mips/kernel/perf_event_mipsxx.c +++ b/arch/mips/kernel/perf_event_mipsxx.c @@ -329,7 +329,7 @@ static int mipsxx_pmu_alloc_counter(struct cpu_hw_events *cpuc, for (i = mipspmu.num_counters - 1; i >= 0; i--) { /* * Note that some MIPS perf events can be counted by both - * even and odd counters, wheresas many other are only by + * even and odd counters, whereas many other are only by * even _or_ odd counters. This introduces an issue that * when the former kind of event takes the counter the * latter kind of event wants to use, then the "counter diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index ef73ba1e0ec1..2ca156a5b231 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -37,6 +37,7 @@ #include <asm/cdmm.h> #include <asm/cpu.h> #include <asm/debug.h> +#include <asm/mmzone.h> #include <asm/sections.h> #include <asm/setup.h> #include <asm/smp-ops.h> @@ -344,6 +345,11 @@ static int __init early_parse_mem(char *p) { phys_addr_t start, size; + if (!p) { + pr_err("mem parameter is empty, do nothing\n"); + return -EINVAL; + } + /* * If a user specifies memory size, we * blow away any automatically generated @@ -359,7 +365,10 @@ static int __init early_parse_mem(char *p) if (*p == '@') start = memparse(p + 1, &p); - memblock_add(start, size); + if (IS_ENABLED(CONFIG_NUMA)) + memblock_add_node(start, size, pa_to_nid(start), MEMBLOCK_NONE); + else + memblock_add(start, size); return 0; } @@ -554,7 +563,7 @@ static void __init bootcmdline_init(void) * unmodified. */ if (IS_ENABLED(CONFIG_CMDLINE_OVERRIDE)) { - strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE); + strscpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE); return; } @@ -566,7 +575,7 @@ static void __init bootcmdline_init(void) * boot_command_line to undo anything early_init_dt_scan_chosen() did. */ if (IS_ENABLED(CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND)) - strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE); + strscpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE); else boot_command_line[0] = 0; @@ -628,7 +637,7 @@ static void __init arch_mem_init(char **cmdline_p) memblock_set_bottom_up(true); bootcmdline_init(); - strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE); + strscpy(command_line, boot_command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; parse_early_param(); diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index 1986d1309410..1d93b85271ba 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -518,6 +518,12 @@ static inline void smp_on_each_tlb(void (*func) (void *info), void *info) void flush_tlb_mm(struct mm_struct *mm) { + if (!mm) + return; + + if (atomic_read(&mm->mm_users) == 0) + return; /* happens as a result of exit_mmap() */ + preempt_disable(); if (cpu_has_mmid) { |