If CONFIG_CORESIGHT is disable, it'll through compilation error. drivers/hwtracing/coresight/coresight-etm-perf.c:462:5: error: redefinition of ‘etm_perf_symlink’ int etm_perf_symlink(struct coresight_device *csdev, bool link) ^ In file included from drivers/hwtracing/coresight/coresight-etm-perf.c:30:0: drivers/hwtracing/coresight/coresight-etm-perf.h:61:19: note: previous definition of ‘etm_perf_symlink’ was here static inline int etm_perf_symlink(struct coresight_device *csdev, bool link)
Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com> --- drivers/hwtracing/coresight/coresight-etm-perf.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c index e97775d..74ce6a5 100644 --- a/drivers/hwtracing/coresight/coresight-etm-perf.c +++ b/drivers/hwtracing/coresight/coresight-etm-perf.c @@ -458,7 +458,7 @@ static void etm_addr_filters_sync(struct perf_event *event) filters->nr_filters = i; } - +#ifdef CONFIG_CORESIGHT int etm_perf_symlink(struct coresight_device *csdev, bool link) { char entry[sizeof("cpu9999999")]; @@ -483,7 +483,7 @@ int etm_perf_symlink(struct coresight_device *csdev, bool link) return 0; } - +#endif static int __init etm_perf_init(void) { int ret; -- 1.9.1