From: Heiko Schocher Date: Mon, 22 Nov 2010 21:30:33 +0000 (+0000) Subject: powerpc/time: printk time stamp init not correct X-Git-Tag: upstream/snapshot3+hdmi~12070^2~13 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=364a1246522f99cbe58040e99af007ada31034ed;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git powerpc/time: printk time stamp init not correct problem: I see sometimes on my mpc5200 based board such printk timing information: [ 0.000000] NR_IRQS:512 nr_irqs:512 16 [ 0.000000] MPC52xx PIC is up and running! [ 0.000000] clocksource: timebase mult[79364d9] shift[22] registered [ 0.000000] console [ttyPSC0] enabled [ 130.300633] pid_max: default: 32768 minimum: 301 [ 130.305647] Mount-cache hash table entries: 512 [ 130.315818] NET: Registered protocol family 16 reason: if the tbu not starts from 0 when linux boots, boot_tb maybe could not store the real 64 bit tbu value, because boot_tp is only a 32 bit unsigned long. solution: change boot_tb to u64 [BenH: Made it u64 instead of unsigned long long] Signed-off-by: Heiko Schocher cc: Wolfgang Denk Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 0104069..09e4dea 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -155,7 +155,7 @@ EXPORT_SYMBOL_GPL(rtc_lock); static u64 tb_to_ns_scale __read_mostly; static unsigned tb_to_ns_shift __read_mostly; -static unsigned long boot_tb __read_mostly; +static u64 boot_tb __read_mostly; extern struct timezone sys_tz; static long timezone_offset;