diff options
| author | David S. Miller <davem@davemloft.net> | 2012-04-17 16:08:29 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-04-17 16:08:29 -0400 |
| commit | 7b56f76edf2da7ab3e356cc0db16f9af4c6a26e2 (patch) | |
| tree | 655860580d081c983e643589e6f56cc1a01138f3 /arch/sparc/net/bpf_jit.h | |
| parent | b3d7b2f2f07ff0ab87442f2d499f2860ef59bfaa (diff) | |
net: filter: Fix some minor issues in sparc JIT.
Correct conventions comments. %o4 and %o5 were swapped,
%g3 was not documented.
Use r_TMP instead of r_SKB_DATA + r_OFF where possible in
assembler stubs.
Correct discussion of %o4 and %o5 in one of bpf_jit_compile()'s
comments.
Based upon feedback from Richard Mortimer.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/net/bpf_jit.h')
| -rw-r--r-- | arch/sparc/net/bpf_jit.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/sparc/net/bpf_jit.h b/arch/sparc/net/bpf_jit.h index 74f048be739..05175be442f 100644 --- a/arch/sparc/net/bpf_jit.h +++ b/arch/sparc/net/bpf_jit.h @@ -4,13 +4,14 @@ /* Conventions: * %g1 : temporary * %g2 : Secondary temporary used by SKB data helper stubs. + * %g3 : packet offset passed into SKB data helper stubs. * %o0 : pointer to skb (first argument given to JIT function) * %o1 : BPF A accumulator * %o2 : BPF X accumulator * %o3 : Holds saved %o7 so we can call helper functions without needing * to allocate a register window. - * %o4 : skb->data - * %o5 : skb->len - skb->data_len + * %o4 : skb->len - skb->data_len + * %o5 : skb->data */ #ifndef __ASSEMBLER__ |