Re: [PATCH] kdb: Cleanup math with KDB_CMD_HISTORY_COUNT

[Daniel Thompson]

On Thu, May 07, 2020 at 04:11:46PM -0700, Douglas Anderson wrote:
> From code inspection the math in handle_ctrl_cmd() looks super sketchy
> because it subjects -1 from cmdptr and then does a "%
> KDB_CMD_HISTORY_COUNT".  It turns out that this code works because
> "cmdptr" is unsigned and KDB_CMD_HISTORY_COUNT is a nice power of 2.
> Let's make this a little less sketchy.
> 
> This patch should be a no-op.
> 
> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>

Applied, thanks!