Can be reproduced with "make EXTRA_CFLAGS='-O1'" command using
gcc 7.3.0
Build error
In file included from .../drivers/event/octeontx2/ot
x2_evdev.c:15:0:
.../drivers/event/octeontx2/otx2_evdev_stats.h:
In function ‘otx2_sso_xstats_get’:
.../drivers/event/octeontx2/otx2_evdev_stats.h:124:9:
error: ‘xstats’ may be used uninitialized in this function
[-Werror=maybe-uninitialized]
xstat = &xstats[ids[i] - start_offset];
~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This is false positive, 'xstats_mode_count' should be preventing taking
the loop and accessing 'xstats'.
Returning in that case to silence the compiler warning.
Reported-by: Konstantin Ananyev <konstantin.anan...@intel.com>
Signed-off-by: Ferruh Yigit <ferruh.yi...@intel.com>
---
drivers/event/octeontx2/otx2_evdev_stats.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/event/octeontx2/otx2_evdev_stats.h
b/drivers/event/octeontx2/otx2_evdev_stats.h
index 9d7c694ee6..74fcec8a07 100644
--- a/drivers/event/octeontx2/otx2_evdev_stats.h
+++ b/drivers/event/octeontx2/otx2_evdev_stats.h
@@ -67,7 +67,7 @@ otx2_sso_xstats_get(const struct rte_eventdev *event_dev,
switch (mode) {
case RTE_EVENT_DEV_XSTATS_DEVICE:
- break;
+ return 0;
case RTE_EVENT_DEV_XSTATS_PORT:
if (queue_port_id >= (signed int)dev->nb_event_ports)
goto invalid_value;
--
2.25.4
