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authorPaul Gortmaker <paul.gortmaker@windriver.com>2013-06-17 15:43:14 -0400
committerPaul Gortmaker <paul.gortmaker@windriver.com>2013-07-14 19:36:52 -0400
commit2066aadd53c563445039d6490b685783816270ec (patch)
tree72a69dee0008e429e62a80b8fad91faf1296737b /arch/sparc/mm
parent8bd26e3a7e49af2697449bbcb7187a39dc85d672 (diff)
sparc: delete __cpuinit/__CPUINIT usage from all 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) 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/sparc uses of the __cpuinit macros from C files and removes __CPUINIT from assembly files. Note that even though arch/sparc/kernel/trampoline_64.S has instances of ".previous" in it, they are all paired off against explicit ".section" directives, and not implicitly paired with __CPUINIT (unlike mips and arm were). [1] https://lkml.org/lkml/2013/5/20/589 Cc: "David S. Miller" <davem@davemloft.net> Cc: sparclinux@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'arch/sparc/mm')
-rw-r--r--arch/sparc/mm/init_64.c2
-rw-r--r--arch/sparc/mm/srmmu.c12
2 files changed, 7 insertions, 7 deletions
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index a9c42a7ffb6a..ed82edad1a39 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1694,7 +1694,7 @@ static void __init sun4v_ktsb_init(void)
#endif
}
-void __cpuinit sun4v_ktsb_register(void)
+void sun4v_ktsb_register(void)
{
unsigned long pa, ret;
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 036c2797dece..5d721df48a72 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -858,7 +858,7 @@ static void __init map_kernel(void)
}
}
-void (*poke_srmmu)(void) __cpuinitdata = NULL;
+void (*poke_srmmu)(void) = NULL;
extern unsigned long bootmem_init(unsigned long *pages_avail);
@@ -1055,7 +1055,7 @@ static void __init init_vac_layout(void)
(int)vac_cache_size, (int)vac_line_size);
}
-static void __cpuinit poke_hypersparc(void)
+static void poke_hypersparc(void)
{
volatile unsigned long clear;
unsigned long mreg = srmmu_get_mmureg();
@@ -1107,7 +1107,7 @@ static void __init init_hypersparc(void)
hypersparc_setup_blockops();
}
-static void __cpuinit poke_swift(void)
+static void poke_swift(void)
{
unsigned long mreg;
@@ -1287,7 +1287,7 @@ static void turbosparc_flush_tlb_page(struct vm_area_struct *vma, unsigned long
}
-static void __cpuinit poke_turbosparc(void)
+static void poke_turbosparc(void)
{
unsigned long mreg = srmmu_get_mmureg();
unsigned long ccreg;
@@ -1350,7 +1350,7 @@ static void __init init_turbosparc(void)
poke_srmmu = poke_turbosparc;
}
-static void __cpuinit poke_tsunami(void)
+static void poke_tsunami(void)
{
unsigned long mreg = srmmu_get_mmureg();
@@ -1391,7 +1391,7 @@ static void __init init_tsunami(void)
tsunami_setup_blockops();
}
-static void __cpuinit poke_viking(void)
+static void poke_viking(void)
{
unsigned long mreg = srmmu_get_mmureg();
static int smp_catch;

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