From: Stephen Boyd <sboyd@codeaurora.org>
To: John Stultz <john.stultz@linaro.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: Dave Jones <davej@codemonkey.org.uk>,
Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Richard Cochran <richardcochran@gmail.com>,
Prarit Bhargava <prarit@redhat.com>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH 04/10] clocksource: Add max_cycles to clocksource structure
Date: Fri, 09 Jan 2015 18:06:27 -0800 [thread overview]
Message-ID: <54B08923.3070709@codeaurora.org> (raw)
In-Reply-To: <1420850068-27828-5-git-send-email-john.stultz@linaro.org>
On 01/09/2015 04:34 PM, John Stultz wrote:
> diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
> index abcafaa..9b54cb9 100644
> --- a/include/linux/clocksource.h
> +++ b/include/linux/clocksource.h
> @@ -178,7 +178,7 @@ struct clocksource {
> #ifdef CONFIG_ARCH_CLOCKSOURCE_DATA
> struct arch_clocksource_data archdata;
> #endif
> -
> + u64 max_cycles;
Nitpick: Update kernel-doc for new field?
> const char *name;
> struct list_head list;
> int rating;
> @@ -291,7 +291,8 @@ extern struct clocksource * __init clocksource_default_clock(void);
> diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
> index c794b84..2910f00 100644
> --- a/kernel/time/sched_clock.c
> +++ b/kernel/time/sched_clock.c
> @@ -126,7 +126,7 @@ void __init sched_clock_register(u64 (*read)(void), int bits,
> new_mask = CLOCKSOURCE_MASK(bits);
>
> /* calculate how many ns until we risk wrapping */
> - wrap = clocks_calc_max_nsecs(new_mult, new_shift, 0, new_mask);
> + wrap = clocks_calc_max_nsecs(new_mult, new_shift, 0, new_mask, 0);
Should be NULL instead of 0? Otherwise I think sparse would complain.
Otherwise:
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2015-01-10 2:06 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-10 0:34 [PATCH 00/10][RFC] Increased clocksource validation and cleanups John Stultz
2015-01-10 0:34 ` [PATCH 01/10] clocksource: Simplify clocks_calc_max_nsecs logic John Stultz
2015-01-10 0:34 ` [PATCH 02/10] clocksource: Simplify logic around clocksource wrapping saftey margins John Stultz
2015-01-10 2:03 ` Stephen Boyd
2015-01-10 0:34 ` [PATCH 03/10] clocksource: Remove clocksource_max_deferment() John Stultz
2015-01-11 11:47 ` Richard Cochran
2015-01-12 18:36 ` John Stultz
2015-01-12 20:16 ` Richard Cochran
2015-01-10 0:34 ` [PATCH 04/10] clocksource: Add max_cycles to clocksource structure John Stultz
2015-01-10 2:06 ` Stephen Boyd [this message]
2015-01-10 0:34 ` [PATCH 05/10] time: Add debugging checks to warn if we see delays John Stultz
2015-01-10 0:34 ` [PATCH 06/10] time: Cap clocksource reads to the clocksource max_cycles value John Stultz
2015-01-11 12:41 ` Richard Cochran
2015-01-12 18:54 ` John Stultz
2015-01-12 19:02 ` Linus Torvalds
2015-01-12 20:37 ` Richard Cochran
2015-01-12 20:30 ` Richard Cochran
2015-01-12 20:49 ` Richard Cochran
2015-01-13 11:11 ` Peter Zijlstra
2015-01-13 21:33 ` John Stultz
2015-01-13 22:51 ` Linus Torvalds
2015-01-14 9:35 ` Peter Zijlstra
2015-01-22 20:55 ` John Stultz
2015-01-10 0:34 ` [PATCH 07/10] time: Try to catch clocksource delta underflows John Stultz
2015-01-10 0:34 ` [PATCH 08/10] clocksource: Mostly kill clocksource_register() John Stultz
2015-01-10 0:34 ` [PATCH 09/10] sparc: Convert to using clocksource_register_hz() John Stultz
2015-01-10 0:34 ` [PATCH 10/10] clocksource: Add some debug info about clocksources being registered John Stultz
2015-01-10 2:02 ` Stephen Boyd
2015-01-22 0:51 ` John Stultz
2015-01-22 12:27 ` Prarit Bhargava
2015-01-11 11:41 ` [PATCH 00/10][RFC] Increased clocksource validation and cleanups Richard Cochran
2015-01-12 18:22 ` John Stultz
2015-01-12 20:45 ` Richard Cochran
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