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powerpc/optprobes: Remove unused routine patch_imm32_load_insns() 

Commit 650b55b707 ("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: 650b55b707 ("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
This commit is contained in:
Cédric Le Goater 2021-01-04 15:31:53 +01:00 committed by Michael Ellerman
parent 157c9f409d
commit d47d307f10
1 changed files with 0 additions and 19 deletions
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19
arch/powerpc/kernel/optprobes.c
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@ -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'.