[PATCH v2 4/4] uprobes/powerpc: remove additional trap instruction check
Srikar Dronamraju
srikar at linux.vnet.ibm.com
Tue Mar 26 23:07:39 EST 2013
* Ananth N Mavinakayanahalli <ananth at in.ibm.com> [2013-03-22 20:49:46]:
> From: Ananth N Mavinakayanahalli <ananth at in.ibm.com>
>
> 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 at in.ibm.com>
Acked-by: Srikar Dronamraju <srikar at linux.vnet.ibm.com>
> ---
> 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;
> }
>
--
Thanks and Regards
Srikar Dronamraju
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