uprobes/powerpc: Kill arch_uprobe->ainsn

powerpc has both arch_uprobe->insn and arch_uprobe->ainsn to
make the generic code happy. This is no longer needed after
the previous change, powerpc can just use "u32 insn".

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>

2 files changed, 3 insertions, 4 deletions

diff --git a/arch/powerpc/include/asm/uprobes.h b/arch/powerpc/include/asm/uprobes.h
index 75c6ecdb8f37..7422a999a39a 100644
--- a/arch/powerpc/include/asm/uprobes.h
+++ b/arch/powerpc/include/asm/uprobes.h
@@ -36,9 +36,8 @@ typedef ppc_opcode_t uprobe_opcode_t;
 
 struct arch_uprobe {
         union {
-                u8      insn[MAX_UINSN_BYTES];
-                u8      ixol[MAX_UINSN_BYTES];
-                u32     ainsn;
+                u32     insn;
+                u32     ixol;
         };
 };
 
diff --git a/arch/powerpc/kernel/uprobes.c b/arch/powerpc/kernel/uprobes.c
index 59f419b935f2..003b20964ea0 100644
--- a/arch/powerpc/kernel/uprobes.c
+++ b/arch/powerpc/kernel/uprobes.c
@@ -186,7 +186,7 @@ bool arch_uprobe_skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs)
          * emulate_step() returns 1 if the insn was successfully emulated.
          * For all other cases, we need to single-step in hardware.
          */
-        ret = emulate_step(regs, auprobe->ainsn);
+        ret = emulate_step(regs, auprobe->insn);
         if (ret > 0)
                 return true;