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Date: Thu, 7 Dec 2017 13:20:46 +0000 (UTC) From: Kalle Valo <kvalo@...eaurora.org> To: Arnd Bergmann <arnd@...db.de> Cc: y2038@...ts.linaro.org, Arnd Bergmann <arnd@...db.de>, Johannes Berg <johannes.berg@...el.com>, Arend Van Spriel <arend.vanspriel@...adcom.com>, Iain Hunter <drhunter95@...il.com>, "Reizer, Eyal" <eyalr@...com>, "David S. Miller" <davem@...emloft.net>, linux-wireless@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: wlcore: use boottime for fw time sync Arnd Bergmann <arnd@...db.de> wrote: > Using getnstimeofday()/timespec_to_ns() causes an overflow on 32-bit > architectures in 2038, and may suffer from time jumps due to > settimeofday() or leap seconds. > > I don't see a reason why this needs to be UTC, so either monotonic > or boot time would be better here. Assuming that the fw time keeps > running during suspend, boottime is better than monotonic, and > ktime_get_boot_ns() will also save the additional conversion to > nanoseconds. > > Signed-off-by: Arnd Bergmann <arnd@...db.de> Patch applied to wireless-drivers-next.git, thanks. 99f6996d4cba wlcore: use boottime for fw time sync -- https://patchwork.kernel.org/patch/10076691/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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