nathanchance added a comment. @hyeongyukim I am currently offline for the evening but it seems like my reduction might have been too aggressive. It looks like this code comes from `ravb_set_gti()` (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/net/ethernet/renesas/ravb_main.c?h=v5.16-rc7#n2480), which checks that `rate` is not zero before using it as a divisor. I will see if I can get a reproducer without any undefined behavior such as this.
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