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Commit 0631b658 authored by Daniel Borkmann's avatar Daniel Borkmann Committed by Alexei Starovoitov
Browse files

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: default avatarDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 53ea24c2

arch/mips/net/ebpf_jit.c

+0 −26
Original line number Diff line number Diff line
@@ -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) {