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-rw-r--r--arch/ia64/include/asm/atomic.h16
-rw-r--r--arch/ia64/include/asm/thread_info.h2
-rw-r--r--arch/ia64/include/asm/uaccess.h33
-rw-r--r--arch/ia64/kernel/acpi.c2
-rw-r--r--arch/ia64/kernel/mca.c36
-rw-r--r--arch/ia64/kernel/vmlinux.lds.S1
6 files changed, 41 insertions, 49 deletions
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
index f565ad376142..65d4bb2b6685 100644
--- a/arch/ia64/include/asm/atomic.h
+++ b/arch/ia64/include/asm/atomic.h
@@ -269,6 +269,22 @@ static __inline__ long atomic64_add_unless(atomic64_t *v, long a, long u)
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
 
+static __inline__ long atomic64_dec_if_positive(atomic64_t *v)
+{
+	long c, old, dec;
+	c = atomic64_read(v);
+	for (;;) {
+		dec = c - 1;
+		if (unlikely(dec < 0))
+			break;
+		old = atomic64_cmpxchg((v), c, dec);
+		if (likely(old == c))
+			break;
+		c = old;
+	}
+	return dec;
+}
+
 /*
  * Atomically add I to V and return TRUE if the resulting value is
  * negative.
diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h
index 29bd59790d6c..c7026429816b 100644
--- a/arch/ia64/include/asm/thread_info.h
+++ b/arch/ia64/include/asm/thread_info.h
@@ -56,7 +56,7 @@ struct thread_info {
 #define alloc_thread_stack_node(tsk, node)	((unsigned long *) 0)
 #define task_thread_info(tsk)	((struct thread_info *) 0)
 #endif
-#define free_thread_stack(ti)	/* nothing */
+#define free_thread_stack(tsk)	/* nothing */
 #define task_stack_page(tsk)	((void *)(tsk))
 
 #define __HAVE_THREAD_FUNCTIONS
diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
index 465c70982f40..bfe13196f770 100644
--- a/arch/ia64/include/asm/uaccess.h
+++ b/arch/ia64/include/asm/uaccess.h
@@ -241,8 +241,7 @@ extern unsigned long __must_check __copy_user (void __user *to, const void __use
 static inline unsigned long
 __copy_to_user (void __user *to, const void *from, unsigned long count)
 {
-	if (!__builtin_constant_p(count))
-		check_object_size(from, count, true);
+	check_object_size(from, count, true);
 
 	return __copy_user(to, (__force void __user *) from, count);
 }
@@ -250,8 +249,7 @@ __copy_to_user (void __user *to, const void *from, unsigned long count)
 static inline unsigned long
 __copy_from_user (void *to, const void __user *from, unsigned long count)
 {
-	if (!__builtin_constant_p(count))
-		check_object_size(to, count, false);
+	check_object_size(to, count, false);
 
 	return __copy_user((__force void __user *) to, from, count);
 }
@@ -265,27 +263,22 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
 	long __cu_len = (n);								\
 											\
 	if (__access_ok(__cu_to, __cu_len, get_fs())) {					\
-		if (!__builtin_constant_p(n))						\
-			check_object_size(__cu_from, __cu_len, true);			\
+		check_object_size(__cu_from, __cu_len, true);			\
 		__cu_len = __copy_user(__cu_to, (__force void __user *)  __cu_from, __cu_len);	\
 	}										\
 	__cu_len;									\
 })
 
-#define copy_from_user(to, from, n)							\
-({											\
-	void *__cu_to = (to);								\
-	const void __user *__cu_from = (from);						\
-	long __cu_len = (n);								\
-											\
-	__chk_user_ptr(__cu_from);							\
-	if (__access_ok(__cu_from, __cu_len, get_fs())) {				\
-		if (!__builtin_constant_p(n))						\
-			check_object_size(__cu_to, __cu_len, false);			\
-		__cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len);	\
-	}										\
-	__cu_len;									\
-})
+static inline unsigned long
+copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+	check_object_size(to, n, false);
+	if (likely(__access_ok(from, n, get_fs())))
+		n = __copy_user((__force void __user *) to, from, n);
+	else
+		memset(to, 0, n);
+	return n;
+}
 
 #define __copy_in_user(to, from, size)	__copy_user((to), (from), (size))
 
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 92b7bc956795..9273e034b730 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -796,7 +796,7 @@ int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
  *  ACPI based hotplug CPU support
  */
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
-static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
+int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
 {
 #ifdef CONFIG_ACPI_NUMA
 	/*
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index eb9220cde76c..9509cc73b9c6 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -986,7 +986,7 @@ ia64_mca_modify_original_stack(struct pt_regs *regs,
 	int cpu = smp_processor_id();
 
 	previous_current = curr_task(cpu);
-	set_curr_task(cpu, current);
+	ia64_set_curr_task(cpu, current);
 	if ((p = strchr(current->comm, ' ')))
 		*p = '\0';
 
@@ -1360,14 +1360,14 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
 				cpumask_clear_cpu(i, &mca_cpu);	/* wake next cpu */
 				while (monarch_cpu != -1)
 					cpu_relax();	/* spin until last cpu leaves */
-				set_curr_task(cpu, previous_current);
+				ia64_set_curr_task(cpu, previous_current);
 				ia64_mc_info.imi_rendez_checkin[cpu]
 						= IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
 				return;
 			}
 		}
 	}
-	set_curr_task(cpu, previous_current);
+	ia64_set_curr_task(cpu, previous_current);
 	ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
 	monarch_cpu = -1;	/* This frees the slaves and previous monarchs */
 }
@@ -1729,7 +1729,7 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw,
 		NOTIFY_INIT(DIE_INIT_SLAVE_LEAVE, regs, (long)&nd, 1);
 
 		mprintk("Slave on cpu %d returning to normal service.\n", cpu);
-		set_curr_task(cpu, previous_current);
+		ia64_set_curr_task(cpu, previous_current);
 		ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
 		atomic_dec(&slaves);
 		return;
@@ -1756,7 +1756,7 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw,
 
 	mprintk("\nINIT dump complete.  Monarch on cpu %d returning to normal service.\n", cpu);
 	atomic_dec(&monarchs);
-	set_curr_task(cpu, previous_current);
+	ia64_set_curr_task(cpu, previous_current);
 	monarch_cpu = -1;
 	return;
 }
@@ -1890,7 +1890,7 @@ ia64_mca_cpu_init(void *cpu_data)
 							      PAGE_KERNEL)));
 }
 
-static void ia64_mca_cmc_vector_adjust(void *dummy)
+static int ia64_mca_cpu_online(unsigned int cpu)
 {
 	unsigned long flags;
 
@@ -1898,25 +1898,9 @@ static void ia64_mca_cmc_vector_adjust(void *dummy)
 	if (!cmc_polling_enabled)
 		ia64_mca_cmc_vector_enable(NULL);
 	local_irq_restore(flags);
+	return 0;
 }
 
-static int mca_cpu_callback(struct notifier_block *nfb,
-				      unsigned long action,
-				      void *hcpu)
-{
-	switch (action) {
-	case CPU_ONLINE:
-	case CPU_ONLINE_FROZEN:
-		ia64_mca_cmc_vector_adjust(NULL);
-		break;
-	}
-	return NOTIFY_OK;
-}
-
-static struct notifier_block mca_cpu_notifier = {
-	.notifier_call = mca_cpu_callback
-};
-
 /*
  * ia64_mca_init
  *
@@ -2111,15 +2095,13 @@ ia64_mca_late_init(void)
 	if (!mca_init)
 		return 0;
 
-	register_hotcpu_notifier(&mca_cpu_notifier);
-
 	/* Setup the CMCI/P vector and handler */
 	setup_timer(&cmc_poll_timer, ia64_mca_cmc_poll, 0UL);
 
 	/* Unmask/enable the vector */
 	cmc_polling_enabled = 0;
-	schedule_work(&cmc_enable_work);
-
+	cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "ia64/mca:online",
+			  ia64_mca_cpu_online, NULL);
 	IA64_MCA_DEBUG("%s: CMCI/P setup and enabled.\n", __func__);
 
 #ifdef CONFIG_ACPI
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index dc506b05ffbd..f89d20c97412 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -46,6 +46,7 @@ SECTIONS {
 		__end_ivt_text = .;
 		TEXT_TEXT
 		SCHED_TEXT
+		CPUIDLE_TEXT
 		LOCK_TEXT
 		KPROBES_TEXT
 		*(.gnu.linkonce.t*)
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-09-22 04:31:41 +0000