diff options
Diffstat (limited to 'arch/x86/kernel/mcount_64.S')
| -rw-r--r-- | arch/x86/kernel/mcount_64.S | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/arch/x86/kernel/mcount_64.S b/arch/x86/kernel/mcount_64.S index 6b4e3c3b3d74..c73aecf10d34 100644 --- a/arch/x86/kernel/mcount_64.S +++ b/arch/x86/kernel/mcount_64.S @@ -46,10 +46,6 @@ END(function_hook) .endm ENTRY(ftrace_caller) - /* Check if tracing was disabled (quick check) */ - cmpl $0, function_trace_stop - jne ftrace_stub - ftrace_caller_setup /* regs go into 4th parameter (but make it NULL) */ movq $0, %rcx @@ -73,10 +69,6 @@ ENTRY(ftrace_regs_caller) /* Save the current flags before compare (in SS location)*/ pushfq - /* Check if tracing was disabled (quick check) */ - cmpl $0, function_trace_stop - jne ftrace_restore_flags - /* skip=8 to skip flags saved in SS */ ftrace_caller_setup 8 @@ -131,7 +123,7 @@ GLOBAL(ftrace_regs_call) popfq jmp ftrace_return -ftrace_restore_flags: + popfq jmp ftrace_stub @@ -141,9 +133,6 @@ END(ftrace_regs_caller) #else /* ! CONFIG_DYNAMIC_FTRACE */ ENTRY(function_hook) - cmpl $0, function_trace_stop - jne ftrace_stub - cmpq $ftrace_stub, ftrace_trace_function jnz trace @@ -182,10 +171,6 @@ END(function_hook) ENTRY(ftrace_graph_caller) MCOUNT_SAVE_FRAME - /* Check if tracing was disabled (quick check) */ - cmpl $0, function_trace_stop - jne fgraph_skip - #ifdef CC_USING_FENTRY leaq SS+16(%rsp), %rdi movq $0, %rdx /* No framepointers needed */ @@ -198,7 +183,6 @@ ENTRY(ftrace_graph_caller) call prepare_ftrace_return -fgraph_skip: MCOUNT_RESTORE_FRAME retq |