Re: [PATCH v3] ethtool: avoiding integer overflow in ethtool_phys_id()

On Tue, 22 Nov 2022 15:29:01 +0300 Maxim Korotkov wrote:

The value of an arithmetic expression "n * id.data" is subject
to possible overflow due to a failure to cast operands to a larger data
type before performing arithmetic. Used macro for multiplication instead
operator for avoiding overflow.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Maxim Korotkov <redacted>

Applying to net-next, pretty sure nobody expects us to support blinking
an LED 4 billion times, at a rate low enough for a human eye to see...
But let's watch the stable bots pick it up anyway.