Re: [PATCH] openvswitch: meter: Use 64-bit arithmetic instead of 32-bit

From: David Miller
Date: Wed Jan 31 2018 - 10:33:22 EST


From: "Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx>
Date: Tue, 30 Jan 2018 22:55:33 -0600

> Add suffix LL to constant 1000 in order to give the compiler
> complete information about the proper arithmetic to use. Notice
> that this constant is used in a context that expects an expression
> of type long long int (64 bits, signed).
>
> The expression (band->burst_size + band->rate) * 1000 is currently
> being evaluated using 32-bit arithmetic.
>
> Addresses-Coverity-ID: 1461563 ("Unintentional integer overflow")
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>

Applied.