From 0631b6583f66cef6f8af3387e7d320cb1f652b75 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Mon, 14 May 2018 23:22:27 +0200 Subject: [PATCH] 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 Signed-off-by: Alexei Starovoitov --- arch/mips/net/ebpf_jit.c | 26 -------------------------- 1 file changed, 26 deletions(-) diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c index 7ba7df9c28fc..aeb7b1b0f202 100644 --- a/arch/mips/net/ebpf_jit.c +++ b/arch/mips/net/ebpf_jit.c @@ -95,7 +95,6 @@ enum reg_val_type { * struct jit_ctx - JIT context * @skf: The sk_filter * @stack_size: eBPF stack size - * @tmp_offset: eBPF $sp offset to 8-byte temporary memory * @idx: Instruction index * @flags: JIT flags * @offsets: Instruction offsets @@ -105,7 +104,6 @@ enum reg_val_type { struct jit_ctx { const struct bpf_prog *skf; int stack_size; - int tmp_offset; u32 idx; u32 flags; u32 *offsets; @@ -293,7 +291,6 @@ static int gen_int_prologue(struct jit_ctx *ctx) locals_size = (ctx->flags & EBPF_SEEN_FP) ? MAX_BPF_STACK : 0; stack_adjust += locals_size; - ctx->tmp_offset = locals_size; ctx->stack_size = stack_adjust; @@ -399,7 +396,6 @@ static void gen_imm_to_reg(const struct bpf_insn *insn, int reg, emit_instr(ctx, lui, reg, upper >> 16); emit_instr(ctx, addiu, reg, reg, lower); } - } static int gen_imm_insn(const struct bpf_insn *insn, struct jit_ctx *ctx, @@ -547,28 +543,6 @@ static int gen_imm_insn(const struct bpf_insn *insn, struct jit_ctx *ctx, return 0; } -static void * __must_check -ool_skb_header_pointer(const struct sk_buff *skb, int offset, - int len, void *buffer) -{ - return skb_header_pointer(skb, offset, len, buffer); -} - -static int size_to_len(const struct bpf_insn *insn) -{ - switch (BPF_SIZE(insn->code)) { - case BPF_B: - return 1; - case BPF_H: - return 2; - case BPF_W: - return 4; - case BPF_DW: - return 8; - } - return 0; -} - static void emit_const_to_reg(struct jit_ctx *ctx, int dst, u64 value) { if (value >= 0xffffffffffff8000ull || value < 0x8000ull) {