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sparseirq: move __weak symbols into separate compilation unit

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GCC has a bug with __weak alias functions: if the functions are in
the same compilation unit as their call site, GCC can decide to
inline them - and thus rob the linker of the opportunity to override
the weak alias with the real thing.

So move all the IRQ handling related __weak symbols to kernel/irq/chip.c.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu
2008-12-28 16:01:13 -08:00
committed by Ingo Molnar
parent b2e2fe9962
commit 43a256322a
5 changed files with 26 additions and 22 deletions
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kernel/irq/manage.c
-9
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@@ -261,15 +261,6 @@ void enable_irq(unsigned int irq)
}
EXPORT_SYMBOL(enable_irq);
/*
* [ Not in kernel/irq/handle.c, so that GCC does not
* inline the __weak alias: ]
*/
int __weak arch_init_chip_data(struct irq_desc *desc, int cpu)
{
return 0;
}
static int set_irq_wake_real(unsigned int irq, unsigned int on)
{
struct irq_desc *desc = irq_to_desc(irq);