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bpf, mips: remove unused function

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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>
This commit is contained in:
Daniel Borkmann 2018-05-14 23:22:27 +02:00 committed by Alexei Starovoitov
parent 53ea24c20c
commit 0631b6583f
1 changed files with 0 additions and 26 deletions
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26
arch/mips/net/ebpf_jit.c
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@ -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) {