[PATCH v2 4/4] uprobes/powerpc: remove additional trap instructioncheck

From: Ananth N Mavinakayanahalli
Date: Fri Mar 22 2013 - 11:20:12 EST


From: Ananth N Mavinakayanahalli <ananth@xxxxxxxxxx>

prepare_uprobe() already checks if the underlying unstruction
(on file) is a trap variant. We don't need to check this again.

Signed-off-by: Ananth N Mavinakayanahalli <ananth@xxxxxxxxxx>
---
arch/powerpc/kernel/uprobes.c | 6 ------
1 file changed, 6 deletions(-)

Index: linux-3.9-rc3/arch/powerpc/kernel/uprobes.c
===================================================================
--- linux-3.9-rc3.orig/arch/powerpc/kernel/uprobes.c
+++ linux-3.9-rc3/arch/powerpc/kernel/uprobes.c
@@ -53,12 +53,6 @@ int arch_uprobe_analyze_insn(struct arch
if (addr & 0x03)
return -EINVAL;

- /*
- * We currently don't support a uprobe on an already
- * existing breakpoint instruction underneath
- */
- if (is_trap(auprobe->ainsn))
- return -ENOTSUPP;
return 0;
}


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