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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>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
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* spear machine family generic header file
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*
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* Copyright (C) 2009-2012 ST Microelectronics
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* Rajeev Kumar <rajeev-dlh.kumar@st.com>
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* Viresh Kumar <viresh.linux@gmail.com>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#ifndef __MACH_GENERIC_H
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#define __MACH_GENERIC_H
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#include <linux/dmaengine.h>
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#include <linux/amba/pl08x.h>
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#include <linux/init.h>
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#include <linux/reboot.h>
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#include <asm/mach/time.h>
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extern void spear13xx_timer_init(void);
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extern void spear3xx_timer_init(void);
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extern struct pl022_ssp_controller pl022_plat_data;
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extern struct pl08x_platform_data pl080_plat_data;
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void __init spear_setup_of_timer(void);
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void __init spear3xx_clk_init(void __iomem *misc_base,
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void __iomem *soc_config_base);
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void __init spear3xx_map_io(void);
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void __init spear3xx_dt_init_irq(void);
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void __init spear6xx_clk_init(void __iomem *misc_base);
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void __init spear13xx_map_io(void);
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void __init spear13xx_l2x0_init(void);
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void spear_restart(enum reboot_mode, const char *);
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void spear13xx_secondary_startup(void);
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void spear13xx_cpu_die(unsigned int cpu);
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extern struct smp_operations spear13xx_smp_ops;
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#ifdef CONFIG_MACH_SPEAR1310
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void __init spear1310_clk_init(void __iomem *misc_base, void __iomem *ras_base);
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#else
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static inline void spear1310_clk_init(void __iomem *misc_base, void __iomem *ras_base) {}
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#endif
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#ifdef CONFIG_MACH_SPEAR1340
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void __init spear1340_clk_init(void __iomem *misc_base);
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#else
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static inline void spear1340_clk_init(void __iomem *misc_base) {}
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#endif
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#endif /* __MACH_GENERIC_H */
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