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Date: Mon, 21 Sep 2015 16:12:35 -0700 (PDT) From: David Miller <davem@...emloft.net> To: robert.jarzmik@...e.fr Cc: samuel@...tiz.org, petr.cvek@....cz, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, arnd@...db.de Subject: Re: [PATCH v2 1/3] net: irda: pxaficp_ir: use sched_clock() for time management From: Robert Jarzmik <robert.jarzmik@...e.fr> Date: Fri, 18 Sep 2015 18:36:56 +0200 > Which brings me to wonder which is the more correct : > (a) replace to reproduce the same calculation > Previously mtt was compared to a difference of 76ns steps (as 307ns / 4 = > 76ns): > while ((sched_clock() - si->last_clk) * 76 < mtt) > > (b) change the calculation assuming mtt is in microseconds : > while ((sched_clock() - si->last_clk) * 1000 < mtt) > > I have no IRDA protocol knowledge so unless someone points me to the correct > calculation I'll try my luck with (b). "a" would be "safer" and less likely to break anything, although as you say "b" might be more correct. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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