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| author | Paul Gortmaker <paul.gortmaker@windriver.com> | 2013-06-17 15:43:14 -0400 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2013-07-14 19:36:52 -0400 |
| commit | 8bd26e3a7e49af2697449bbcb7187a39dc85d672 (patch) | |
| tree | 60f8d1ac6596d4e51a6f2959ca4fe4e10989a8f1 /arch/arm/mach-spear | |
| parent | 078a55fc824c1633b3a507e4ad48b4637c1dfc18 (diff) | |
| download | linux-stable-8bd26e3a7e49af2697449bbcb7187a39dc85d672.tar.gz linux-stable-8bd26e3a7e49af2697449bbcb7187a39dc85d672.tar.bz2 linux-stable-8bd26e3a7e49af2697449bbcb7187a39dc85d672.zip | |
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>
Diffstat (limited to 'arch/arm/mach-spear')
| -rw-r--r-- | arch/arm/mach-spear/generic.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-spear/platsmp.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/mach-spear/generic.h b/arch/arm/mach-spear/generic.h index 904f2c907b46..a99d90a4d09c 100644 --- a/arch/arm/mach-spear/generic.h +++ b/arch/arm/mach-spear/generic.h @@ -37,7 +37,7 @@ void __init spear13xx_l2x0_init(void); void spear_restart(enum reboot_mode, const char *); void spear13xx_secondary_startup(void); -void __cpuinit spear13xx_cpu_die(unsigned int cpu); +void spear13xx_cpu_die(unsigned int cpu); extern struct smp_operations spear13xx_smp_ops; diff --git a/arch/arm/mach-spear/platsmp.c b/arch/arm/mach-spear/platsmp.c index 9c4c722c954e..5c4a19887b2b 100644 --- a/arch/arm/mach-spear/platsmp.c +++ b/arch/arm/mach-spear/platsmp.c @@ -24,7 +24,7 @@ static DEFINE_SPINLOCK(boot_lock); static void __iomem *scu_base = IOMEM(VA_SCU_BASE); -static void __cpuinit spear13xx_secondary_init(unsigned int cpu) +static void spear13xx_secondary_init(unsigned int cpu) { /* * let the primary processor know we're out of the @@ -40,7 +40,7 @@ static void __cpuinit spear13xx_secondary_init(unsigned int cpu) spin_unlock(&boot_lock); } -static int __cpuinit spear13xx_boot_secondary(unsigned int cpu, struct task_struct *idle) +static int spear13xx_boot_secondary(unsigned int cpu, struct task_struct *idle) { unsigned long timeout; |