bpf, mips: remove unused function
The ool_skb_header_pointer() and size_to_len() is unused same as tmp_offset, therefore remove all of them. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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@ -95,7 +95,6 @@ enum reg_val_type {
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* struct jit_ctx - JIT context
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* @skf: The sk_filter
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* @stack_size: eBPF stack size
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* @tmp_offset: eBPF $sp offset to 8-byte temporary memory
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* @idx: Instruction index
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* @flags: JIT flags
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* @offsets: Instruction offsets
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@ -105,7 +104,6 @@ enum reg_val_type {
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struct jit_ctx {
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const struct bpf_prog *skf;
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int stack_size;
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int tmp_offset;
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u32 idx;
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u32 flags;
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u32 *offsets;
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@ -293,7 +291,6 @@ static int gen_int_prologue(struct jit_ctx *ctx)
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locals_size = (ctx->flags & EBPF_SEEN_FP) ? MAX_BPF_STACK : 0;
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stack_adjust += locals_size;
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ctx->tmp_offset = locals_size;
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ctx->stack_size = stack_adjust;
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@ -399,7 +396,6 @@ static void gen_imm_to_reg(const struct bpf_insn *insn, int reg,
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emit_instr(ctx, lui, reg, upper >> 16);
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emit_instr(ctx, addiu, reg, reg, lower);
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}
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}
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static int gen_imm_insn(const struct bpf_insn *insn, struct jit_ctx *ctx,
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@ -547,28 +543,6 @@ static int gen_imm_insn(const struct bpf_insn *insn, struct jit_ctx *ctx,
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return 0;
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}
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static void * __must_check
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ool_skb_header_pointer(const struct sk_buff *skb, int offset,
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int len, void *buffer)
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{
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return skb_header_pointer(skb, offset, len, buffer);
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}
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static int size_to_len(const struct bpf_insn *insn)
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{
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switch (BPF_SIZE(insn->code)) {
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case BPF_B:
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return 1;
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case BPF_H:
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return 2;
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case BPF_W:
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return 4;
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case BPF_DW:
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return 8;
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}
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return 0;
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}
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static void emit_const_to_reg(struct jit_ctx *ctx, int dst, u64 value)
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{
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if (value >= 0xffffffffffff8000ull || value < 0x8000ull) {
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