[dpdk-dev] [PATCH] i40e: fix unintended sign extension
Thomas Monjalon
thomas.monjalon at 6wind.com
Tue Dec 15 18:07:30 CET 2015
> Coverity issue reported like
> > CID 119268 (#1 of 1): Unintended sign extension
> > (SIGN_EXTENSION)sign_extension: Suspicious implicit sign extension:
> > vsi_id with type unsigned short (16 bits, unsigned) is promoted in vsi_id
> > << 23 to type int (32 bits, signed), then sign-extended to type unsigned
> > long (64 bits, unsigned). If vsi_id << 23 is greater than 0x7FFFFFFF, the
> > upper bits of the result will all be 1.
> >
> > Fixes: 88ebc2b7f976 ("i40e: extend flow director to support VF")
> > Signed-off-by: Jingjing Wu <jingjing.wu at intel.com>
>
> Acked-by: John McNamara <john.mcnamara at intel.com>
Applied, thanks
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