diff mbox series

[6/6] bpf, docs: Fully document the JMP mode modifiers

Message ID 20220103183556.41040-7-hch@lst.de (mailing list archive)
State Accepted
Delegated to: BPF
Headers show
Series [1/6] bpf, docs: Add a setion to explain the basic instruction encoding | expand

Checks

Context Check Description
bpf/vmtest-bpf-next-PR success PR summary
bpf/vmtest-bpf-next success VM_Test
netdev/tree_selection success Not a local patch

Commit Message

Christoph Hellwig Jan. 3, 2022, 6:35 p.m. UTC 
Add a description for all the modifiers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 Documentation/bpf/instruction-set.rst | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/Documentation/bpf/instruction-set.rst b/Documentation/bpf/instruction-set.rst
index 88e8d6a9195cd..3704836fe6df6 100644
--- a/Documentation/bpf/instruction-set.rst
+++ b/Documentation/bpf/instruction-set.rst
@@ -173,15 +173,15 @@  The size modifier is one of:
 
 The mode modifier is one of:
 
-  =============  =====  =====================
+  =============  =====  ====================================
   mode modifier  value  description
-  =============  =====  =====================
+  =============  =====  ====================================
   BPF_IMM        0x00   used for 64-bit mov
-  BPF_ABS        0x20
-  BPF_IND        0x40
-  BPF_MEM        0x60
+  BPF_ABS        0x20   legacy BPF packet access
+  BPF_IND        0x40   legacy BPF packet access
+  BPF_MEM        0x60   all normal load and store operations
   BPF_ATOMIC     0xc0   atomic operations
-  =============  =====  =====================
+  =============  =====  ====================================
 
 BPF_MEM | <size> | BPF_STX means::