From e48af19f56eb47a1f908ee8f16df9d246f955b21 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 25 Feb 2008 18:31:57 +0100 Subject: [PATCH] ntp: use unsigned input for do_div() The kernel NTP code shouldn't hand 64-bit *signed* values to do_div(). Make it instead hand 64-bit unsigned values. This gets rid of a couple of warnings. Signed-off-by: David Howells Cc: Roman Zippel Cc: Ingo Molnar Cc: john stultz Signed-off-by: Andrew Morton Signed-off-by: Thomas Gleixner --- kernel/time/ntp.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index c88b5910e7ab..d4bca927f715 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -342,14 +342,16 @@ int do_adjtimex(struct timex *txc) freq_adj = shift_right(freq_adj, time_constant * 2 + (SHIFT_PLL + 2) * 2 - SHIFT_NSEC); if (mtemp >= MINSEC && (time_status & STA_FLL || mtemp > MAXSEC)) { + u64 utemp64; temp64 = time_offset << (SHIFT_NSEC - SHIFT_FLL); if (time_offset < 0) { - temp64 = -temp64; - do_div(temp64, mtemp); - freq_adj -= temp64; + utemp64 = -temp64; + do_div(utemp64, mtemp); + freq_adj -= utemp64; } else { - do_div(temp64, mtemp); - freq_adj += temp64; + utemp64 = temp64; + do_div(utemp64, mtemp); + freq_adj += utemp64; } } freq_adj += time_freq; -- 2.20.1