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>

diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c
index 7ba7df9c28fc55a68d163e28f09862e9716c3d3b..aeb7b1b0f2024e1de01c25c14566d7f3e71c03e4 100644 (file)
--- 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) {