diff options
| -rw-r--r-- | arch/x86/net/bpf_timed_may_goto.S | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/x86/net/bpf_timed_may_goto.S b/arch/x86/net/bpf_timed_may_goto.S index 20de4a14dc4c..54c690cae190 100644 --- a/arch/x86/net/bpf_timed_may_goto.S +++ b/arch/x86/net/bpf_timed_may_goto.S @@ -11,6 +11,16 @@ SYM_FUNC_START(arch_bpf_timed_may_goto) ANNOTATE_NOENDBR + /* + * r10 passes us stack depth, load the pointer to count and timestamp + * into r10 by adding it to BPF frame pointer. + */ + leaq (%rbp, %r10, 1), %r10 + + /* Setup frame. */ + pushq %rbp + movq %rsp, %rbp + /* Save r0-r5. */ pushq %rax pushq %rdi @@ -20,10 +30,10 @@ SYM_FUNC_START(arch_bpf_timed_may_goto) pushq %r8 /* - * r10 passes us stack depth, load the pointer to count and timestamp as - * first argument to the call below. + * r10 has the pointer to count and timestamp, pass it as first + * argument. */ - leaq (%rbp, %r10, 1), %rdi + movq %r10, %rdi /* Emit call depth accounting for call below. */ CALL_DEPTH_ACCOUNT @@ -40,5 +50,6 @@ SYM_FUNC_START(arch_bpf_timed_may_goto) popq %rdi popq %rax + leave RET SYM_FUNC_END(arch_bpf_timed_may_goto) |