linux-kernel - [PATCH bpf-next 1/4] bpf: Add new macro BPF_ALU32 and BPF

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Date:   Wed,  1 Feb 2023 20:36:35 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>
Cc:     bpf@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH bpf-next 1/4] bpf: Add new macro BPF_ALU32 and BPF_JMP64

In the current code, BPF_ALU means BPF_ALU32, but BPF_JMP means BPF_JMP64,
it is a little confusing at the first glance, add new macro BPF_ALU32 and
BPF_JMP64, then we can replace the ambiguos macro BPF_ALU and BPF_JMP with
new macro BPF_ALU32 and BPF_JMP64 step by step, BPF_ALU and BPF_JMP can be
removed from the uapi header file in some day.

Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---
 include/uapi/linux/bpf.h       | 2 ++
 tools/include/uapi/linux/bpf.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index ba0f0cf..a118c43 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -15,6 +15,8 @@
 
 /* instruction classes */
 #define BPF_JMP32	0x06	/* jmp mode in word width */
+#define BPF_JMP64	0x05	/* jmp mode in double word width */
+#define BPF_ALU32	0x04	/* alu mode in word width */
 #define BPF_ALU64	0x07	/* alu mode in double word width */
 
 /* ld/ldx fields */
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 7f024ac..014b449 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -15,6 +15,8 @@
 
 /* instruction classes */
 #define BPF_JMP32	0x06	/* jmp mode in word width */
+#define BPF_JMP64	0x05	/* jmp mode in double word width */
+#define BPF_ALU32	0x04	/* alu mode in word width */
 #define BPF_ALU64	0x07	/* alu mode in double word width */
 
 /* ld/ldx fields */
-- 
2.1.0