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authorBharat Bhushan <r65777@freescale.com>2013-04-29 22:18:11 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-05-02 10:31:01 +1000
commitfc2a6cfe05a33891180a27d55983febe170bc0f8 (patch)
tree174cf902c521dde8022ed23646cb35d44c29d9bc /arch/powerpc/kernel/head_44x.S
parent1f6aaaccb1b3af8613fe45781c1aefee2ae8c6b3 (diff)
downloadlinux-fc2a6cfe05a33891180a27d55983febe170bc0f8.tar.gz
powerpc: Fix interrupt range check on debug exception
We do not want to take single step and branch-taken debug exception in kernel exception code. But the address range check was not covering all kernel exception handlers address range. With this patch we defined the interrupt_end label which defines the end on kernel exception code. So now we check interrupt_base to interrupt_end range for not handling debug exception in kernel exception entry. Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/head_44x.S')
-rw-r--r--arch/powerpc/kernel/head_44x.S2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
index 7a2e5e421abf..97e2671cde7f 100644
--- a/arch/powerpc/kernel/head_44x.S
+++ b/arch/powerpc/kernel/head_44x.S
@@ -769,6 +769,8 @@ finish_tlb_load_47x:
*/
DEBUG_CRIT_EXCEPTION
+interrupt_end:
+
/*
* Global functions
*/