x86/oprofile: add CONFIG_OPROFILE_IBS option

Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: oprofile-list <oprofile-list@lists.sourceforge.net>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Barry Kasindorf <barry.kasindorf@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index c9ac4e156918..aba905b3afb8 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -253,6 +253,8 @@ void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
         oprofile_add_ext_sample(pc, regs, event, is_kernel);
 }
 
+#ifdef CONFIG_OPROFILE_IBS
+
 #define MAX_IBS_SAMPLE_SIZE     14
 static int log_ibs_sample(struct oprofile_cpu_buffer *cpu_buf,
         unsigned long pc, int is_kernel, unsigned  int *ibs, int ibs_code)
@@ -318,6 +320,8 @@ void oprofile_add_ibs_sample(struct pt_regs *const regs,
                 oprofile_ops.backtrace(regs, backtrace_depth);
 }
 
+#endif
+
 void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event)
 {
         struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);