Hi,
> -----Original Message-----
> From: Pei, Andy
> Sent: Wednesday, May 22, 2019 14:43
> To: dev@dpdk.org
> Cc: Pei, Andy <andy....@intel.com>; Xu, Rosen <rosen...@intel.com>;
> sta...@dpdk.org
> Subject: [PATCH] raw/ifpga: fix unintentional integer overflow
>
> cast unsigned int ports_per_retimer, unsigned int nums_retimer, unsigned
> int nums_fvl and unsigned int ports_per_fvl to uint64_t before multiply
> operation, to avoid Unintentional integer overflow.
>
> Coverity issue: 337924, 337926
> Fixes: d1cd4eb2d48e ("raw/ifpga: support ipn3ke")
> Cc: rosen...@intel.com
> Cc: sta...@dpdk.org
>
> Signed-off-by: Andy Pei <andy....@intel.com>
> ---
> drivers/raw/ifpga_rawdev/ifpga_rawdev.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> index 41be1a2..9c68666 100644
> --- a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> +++ b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c
> @@ -494,8 +494,8 @@
> if (!strcmp(attr_name, "LineSideLinkPortNum")) {
> if (opae_manager_get_retimer_info(mgr, &opae_rtm_info))
> return -1;
> - uint64_t tmp = opae_rtm_info.ports_per_retimer *
> - opae_rtm_info.nums_retimer;
> + uint64_t tmp = (uint64_t)opae_rtm_info.ports_per_retimer *
> +
> (uint64_t)opae_rtm_info.nums_retimer;
> *attr_value = tmp;
> return 0;
> }
> @@ -547,8 +547,8 @@
> if (!strcmp(attr_name, "NICSideLinkPortNum")) {
> if (opae_manager_get_retimer_info(mgr, &opae_rtm_info))
> return -1;
> - uint64_t tmp = opae_rtm_info.nums_fvl *
> - opae_rtm_info.ports_per_fvl;
> + uint64_t tmp = (uint64_t)opae_rtm_info.nums_fvl *
> +
> (uint64_t)opae_rtm_info.ports_per_fvl;
> *attr_value = tmp;
> return 0;
> }
> --
> 1.8.3.1
Acked-by: Rosen Xu <rosen...@intel.com>
