[dpdk-dev] [PATCH v2] ixgbe: disable icc compile warning

[Ananyev, Konstantin]

> -----Original Message-----
> From: Yigit, Ferruh
> Sent: Thursday, March 24, 2016 5:35 PM
> To: dev at dpdk.org
> Cc: Stephen Hemminger; Ananyev, Konstantin; Yigit, Ferruh
> Subject: [PATCH v2] ixgbe: disable icc compile 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 at intel.com>
> ---
>  drivers/net/ixgbe/Makefile | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/net/ixgbe/Makefile b/drivers/net/ixgbe/Makefile
> index c032775..50bf51c 100644
> --- 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
> --

Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>

> 2.5.0