[dpdk-dev] [PATCH v2] ixgbe: disable icc compile warning
Ananyev, Konstantin
konstantin.ananyev at intel.com
Thu Mar 24 18:47:21 CET 2016
> -----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
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