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authorChristoph Hellwig <hch@lst.de>2010-06-02 22:24:26 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-06-15 15:02:37 +1000
commitf1ba9a5b2ab7d3f5a910d93371c4f22b636b7683 (patch)
tree027523e8302d0851acd8e472acff9c81030abc94 /arch/powerpc/kernel/setup_32.c
parentb636f1379eefe6eba931deaa386605bc7ac623e7 (diff)
downloadop-kernel-dev-f1ba9a5b2ab7d3f5a910d93371c4f22b636b7683.zip
op-kernel-dev-f1ba9a5b2ab7d3f5a910d93371c4f22b636b7683.tar.gz
powerpc: Unconditionally enabled irq stacks
Irq stacks provide an essential protection from stack overflows through external interrupts, at the cost of two additionals stacks per CPU. Enable them unconditionally to simplify the kernel build and prevent people from accidentally disabling them. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/setup_32.c')
-rw-r--r--arch/powerpc/kernel/setup_32.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 8f58986..7d84b21 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -241,7 +241,6 @@ int __init ppc_init(void)
arch_initcall(ppc_init);
-#ifdef CONFIG_IRQSTACKS
static void __init irqstack_early_init(void)
{
unsigned int i;
@@ -255,9 +254,6 @@ static void __init irqstack_early_init(void)
__va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
}
}
-#else
-#define irqstack_early_init()
-#endif
#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
static void __init exc_lvl_early_init(void)
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