arm: delete __cpuinit/__CPUINIT usage from all ARM users

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)
and are flagged as __cpuinit  -- so if we remove the __cpuinit from
the arch specific callers, we will also get section mismatch warnings.
As an intermediate step, we intend to turn the linux/init.h cpuinit
related 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 ARM uses of the __cpuinit macros from C code,
and all __CPUINIT from assembly code.  It also had two ".previous"
section statements that were paired off against __CPUINIT
(aka .section ".cpuinit.text") that also get removed here.

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

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

5 files changed, 3 insertions, 6 deletions

diff --git a/arch/arm/mach-shmobile/headsmp-scu.S b/arch/arm/mach-shmobile/headsmp-scu.S
index 6f9865467258..bfd920083a3b 100644
--- a/arch/arm/mach-shmobile/headsmp-scu.S
+++ b/arch/arm/mach-shmobile/headsmp-scu.S
@@ -23,7 +23,6 @@
 #include <linux/init.h>
 #include <asm/memory.h>
 
-	__CPUINIT
 /*
  * Boot code for secondary CPUs.
  *
diff --git a/arch/arm/mach-shmobile/headsmp.S b/arch/arm/mach-shmobile/headsmp.S
index 559d1ce5f57e..a9d212498987 100644
--- a/arch/arm/mach-shmobile/headsmp.S
+++ b/arch/arm/mach-shmobile/headsmp.S
@@ -14,8 +14,6 @@
 #include <linux/init.h>
 #include <asm/memory.h>
 
-	__CPUINIT
-
 ENTRY(shmobile_invalidate_start)
 	bl	v7_invalidate_l1
 	b	secondary_startup
diff --git a/arch/arm/mach-shmobile/smp-emev2.c b/arch/arm/mach-shmobile/smp-emev2.c
index 80991b35f4ac..22a05a869d25 100644
--- a/arch/arm/mach-shmobile/smp-emev2.c
+++ b/arch/arm/mach-shmobile/smp-emev2.c
@@ -30,7 +30,7 @@
 
 #define EMEV2_SCU_BASE 0x1e000000
 
-static int __cpuinit emev2_boot_secondary(unsigned int cpu, struct task_struct *idle)
+static int emev2_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
 	arch_send_wakeup_ipi_mask(cpumask_of(cpu_logical_map(cpu)));
 	return 0;
diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index 526cfaae81c1..9bdf810f2a87 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -81,7 +81,7 @@ static int r8a7779_platform_cpu_kill(unsigned int cpu)
 	return ret ? ret : 1;
 }
 
-static int __cpuinit r8a7779_boot_secondary(unsigned int cpu, struct task_struct *idle)
+static int r8a7779_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
 	struct r8a7779_pm_ch *ch = NULL;
 	int ret = -EIO;
diff --git a/arch/arm/mach-shmobile/smp-sh73a0.c b/arch/arm/mach-shmobile/smp-sh73a0.c
index d613113a04bd..d5fc3ed4e315 100644
--- a/arch/arm/mach-shmobile/smp-sh73a0.c
+++ b/arch/arm/mach-shmobile/smp-sh73a0.c
@@ -48,7 +48,7 @@ void __init sh73a0_register_twd(void)
 }
 #endif
 
-static int __cpuinit sh73a0_boot_secondary(unsigned int cpu, struct task_struct *idle)
+static int sh73a0_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
 	cpu = cpu_logical_map(cpu);