powerpc/optprobes: Remove unused routine patch_imm32_load_insns()

Commit 650b55b707fd ("powerpc: Add prefixed instructions to instruction
data type") removed the use of patch_imm32_load_insns(). Clean it up
to fix this W=1 compile error :

../arch/powerpc/kernel/optprobes.c:149:6: error: no previous prototype for ‘patch_imm32_load_insns’ [-Werror=missing-prototypes]
  149 | void patch_imm32_load_insns(unsigned int val, kprobe_opcode_t *addr)

Fixes: 650b55b707fd ("powerpc: Add prefixed instructions to instruction data type")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210104143206.695198-11-clg@kaod.org

diff --git a/arch/powerpc/kernel/optprobes.c b/arch/powerpc/kernel/optprobes.c
index 69bfe96..da6b88b 100644 (file)
--- a/arch/powerpc/kernel/optprobes.c
+++ b/arch/powerpc/kernel/optprobes.c
@@ -141,25 +141,6 @@ void arch_remove_optimized_kprobe(struct optimized_kprobe *op)
        }
 }
 
-/*
- * emulate_step() requires insn to be emulated as
- * second parameter. Load register 'r4' with the
- * instruction.
- */
-void patch_imm32_load_insns(unsigned int val, kprobe_opcode_t *addr)
-{
-       /* addis r4,0,(insn)@h */
-       patch_instruction((struct ppc_inst *)addr,
-                         ppc_inst(PPC_INST_ADDIS | ___PPC_RT(4) |
-                                  ((val >> 16) & 0xffff)));
-       addr++;
-
-       /* ori r4,r4,(insn)@l */
-       patch_instruction((struct ppc_inst *)addr,
-                         ppc_inst(PPC_INST_ORI | ___PPC_RA(4) |
-                                  ___PPC_RS(4) | (val & 0xffff)));
-}
-
 /*
  * Generate instructions to load provided immediate 64-bit value
  * to register 'reg' and patch these instructions at 'addr'.