MIPS: BPF: Use BPF register names to describe the ABI

Use the BPF register names instead of the arch register names to
document how the ABI is structured.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: linux-kernel@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/10529/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/net/bpf_jit.c b/arch/mips/net/bpf_jit.c
index 954df295f945a01a9ecce29aa3eae5c18d4d180c..f0db4f8310b28c6ccb98fc83f8b17502e2fe5a7b 100644 (file)
--- a/arch/mips/net/bpf_jit.c
+++ b/arch/mips/net/bpf_jit.c
@@ -30,10 +30,10 @@
 
 /* ABI
  *
- * s3  BPF register A
- * s4  BPF register X
- * s5  *skb
- * s6  *scratch memory
+ * r_A         BPF register A
+ * r_X         BPF register X
+ * r_skb       *skb
+ * r_M         *scratch memory
  *
  * On entry (*bpf_func)(*skb, *filter)
  * a0 = MIPS_R_A0 = skb;