ixgbe: disable icc false positive warning

icc (icc (ICC) 16.0.1 20151021) is generating following compile error:
  CC ixgbe_rxtx.o
  .../drivers/net/ixgbe/ixgbe_rxtx.c(153): error #3656: variable
  "free" may be used before its value is set
                      (nb_free > 0 && m->pool != free[0]->pool)) {
			                         ^

Indeed this is a false positive and code is correct.
"nb_free" check prevents the free[] access before its value set.

Disabling this icc warning (#3656) for file ixgbe_rxtx.c.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

diff --git a/drivers/net/ixgbe/Makefile b/drivers/net/ixgbe/Makefile
index c032775..50bf51c 100644 (file)
--- a/drivers/net/ixgbe/Makefile
+++ b/drivers/net/ixgbe/Makefile
@@ -49,6 +49,8 @@ ifeq ($(CC), icc)
 #
 CFLAGS_BASE_DRIVER = -wd174 -wd593 -wd869 -wd981 -wd2259
 
+CFLAGS_ixgbe_rxtx.o += -wd3656
+
 else ifeq ($(CC), clang)
 #
 # CFLAGS for clang