x86: delete __cpuinit usage from all x86 files

The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications.  For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.

After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out.  Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.

Note that some harmless section mismatch warnings may result, since
notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c)
are flagged as __cpuinit  -- so if we remove the __cpuinit from
arch specific callers, we will also get section mismatch warnings.
As an intermediate step, we intend to turn the linux/init.h cpuinit
content into no-ops as early as possible, since that will get rid
of these warnings.  In any case, they are temporary and harmless.

This removes all the arch/x86 uses of the __cpuinit macros from
all C files.  x86 only had the one __CPUINIT used in assembly files,
and it wasn't paired off with a .previous or a __FINIT, so we can
delete it directly w/o any corresponding additional change there.

[1] https://lkml.org/lkml/2013/5/20/589

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

1 files changed, 14 insertions, 14 deletions

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index bfd348e99369..aecc98a93d1b 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -130,7 +130,7 @@ atomic_t init_deasserted;
  * Report back to the Boot Processor during boot time or to the caller processor
  * during CPU online.
  */
-static void __cpuinit smp_callin(void)
+static void smp_callin(void)
 {
 	int cpuid, phys_id;
 	unsigned long timeout;
@@ -237,7 +237,7 @@ static int enable_start_cpu0;
 /*
  * Activate a secondary processor.
  */
-notrace static void __cpuinit start_secondary(void *unused)
+static void notrace start_secondary(void *unused)
 {
 	/*
 	 * Don't put *anything* before cpu_init(), SMP booting is too
@@ -300,7 +300,7 @@ void __init smp_store_boot_cpu_info(void)
  * The bootstrap kernel entry code has set these up. Save them for
  * a given CPU
  */
-void __cpuinit smp_store_cpu_info(int id)
+void smp_store_cpu_info(int id)
 {
 	struct cpuinfo_x86 *c = &cpu_data(id);
 
@@ -313,7 +313,7 @@ void __cpuinit smp_store_cpu_info(int id)
 	identify_secondary_cpu(c);
 }
 
-static bool __cpuinit
+static bool
 topology_sane(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o, const char *name)
 {
 	int cpu1 = c->cpu_index, cpu2 = o->cpu_index;
@@ -330,7 +330,7 @@ do {									\
 	cpumask_set_cpu((c2), cpu_##_m##_mask(c1));			\
 } while (0)
 
-static bool __cpuinit match_smt(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
+static bool match_smt(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
 {
 	if (cpu_has_topoext) {
 		int cpu1 = c->cpu_index, cpu2 = o->cpu_index;
@@ -348,7 +348,7 @@ static bool __cpuinit match_smt(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
 	return false;
 }
 
-static bool __cpuinit match_llc(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
+static bool match_llc(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
 {
 	int cpu1 = c->cpu_index, cpu2 = o->cpu_index;
 
@@ -359,7 +359,7 @@ static bool __cpuinit match_llc(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
 	return false;
 }
 
-static bool __cpuinit match_mc(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
+static bool match_mc(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
 {
 	if (c->phys_proc_id == o->phys_proc_id) {
 		if (cpu_has(c, X86_FEATURE_AMD_DCM))
@@ -370,7 +370,7 @@ static bool __cpuinit match_mc(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
 	return false;
 }
 
-void __cpuinit set_cpu_sibling_map(int cpu)
+void set_cpu_sibling_map(int cpu)
 {
 	bool has_smt = smp_num_siblings > 1;
 	bool has_mp = has_smt || boot_cpu_data.x86_max_cores > 1;
@@ -499,7 +499,7 @@ void __inquire_remote_apic(int apicid)
  * INIT, INIT, STARTUP sequence will reset the chip hard for us, and this
  * won't ... remember to clear down the APIC, etc later.
  */
-int __cpuinit
+int
 wakeup_secondary_cpu_via_nmi(int apicid, unsigned long start_eip)
 {
 	unsigned long send_status, accept_status = 0;
@@ -533,7 +533,7 @@ wakeup_secondary_cpu_via_nmi(int apicid, unsigned long start_eip)
 	return (send_status | accept_status);
 }
 
-static int __cpuinit
+static int
 wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
 {
 	unsigned long send_status, accept_status = 0;
@@ -649,7 +649,7 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
 }
 
 /* reduce the number of lines printed when booting a large cpu count system */
-static void __cpuinit announce_cpu(int cpu, int apicid)
+static void announce_cpu(int cpu, int apicid)
 {
 	static int current_node = -1;
 	int node = early_cpu_to_node(cpu);
@@ -691,7 +691,7 @@ static int wakeup_cpu0_nmi(unsigned int cmd, struct pt_regs *regs)
  * We'll change this code in the future to wake up hard offlined CPU0 if
  * real platform and request are available.
  */
-static int __cpuinit
+static int
 wakeup_cpu_via_init_nmi(int cpu, unsigned long start_ip, int apicid,
 	       int *cpu0_nmi_registered)
 {
@@ -731,7 +731,7 @@ wakeup_cpu_via_init_nmi(int cpu, unsigned long start_ip, int apicid,
  * Returns zero if CPU booted OK, else error code from
  * ->wakeup_secondary_cpu.
  */
-static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
+static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 {
 	volatile u32 *trampoline_status =
 		(volatile u32 *) __va(real_mode_header->trampoline_status);
@@ -872,7 +872,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 	return boot_error;
 }
 
-int __cpuinit native_cpu_up(unsigned int cpu, struct task_struct *tidle)
+int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
 	int apicid = apic->cpu_present_to_apicid(cpu);
 	unsigned long flags;