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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/misc_32.S
parentpowerpc/kexec: Wait for online/possible CPUs only. (diff)
downloadlinux-dev-f1ba9a5b2ab7d3f5a910d93371c4f22b636b7683.tar.xz
linux-dev-f1ba9a5b2ab7d3f5a910d93371c4f22b636b7683.zip
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/misc_32.S')
-rw-r--r--arch/powerpc/kernel/misc_32.S2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index dc66d52dcff5..6bbd7a604d24 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -33,7 +33,6 @@
.text
-#ifdef CONFIG_IRQSTACKS
_GLOBAL(call_do_softirq)
mflr r0
stw r0,4(r1)
@@ -56,7 +55,6 @@ _GLOBAL(call_handle_irq)
lwz r0,4(r1)
mtlr r0
blr
-#endif /* CONFIG_IRQSTACKS */
/*
* This returns the high 64 bits of the product of two 64-bit numbers.