Re: [PATCH] tcp_lp: use 64-bit arithmetic instead of 32-bit

From: David Miller
Date: Thu Feb 01 2018 - 09:45:39 EST


From: "Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx>
Date: Wed, 31 Jan 2018 18:24:07 -0600

> Cast to s64 some variables and a macro in order to give the
> compiler complete information about the proper arithmetic to
> use. Notice that these elements are used in contexts that
> expect expressions of type s64 (64 bits, signed).
>
> Currently such expression are being evaluated using 32-bit
> arithmetic.
>
> Addresses-Coverity-ID: 200687
> Addresses-Coverity-ID: 200688
> Addresses-Coverity-ID: 200689
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>

Sorry, I'm not applying this, the domain of the input values
means that the calculation cannot overflow.