From: "Luck, Tony" <tony.luck@intel.com>
To: Reinette Chatre <reinette.chatre@intel.com>
Cc: Fenghua Yu <fenghuay@nvidia.com>,
Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>,
Peter Newman <peternewman@google.com>,
James Morse <james.morse@arm.com>,
Babu Moger <babu.moger@amd.com>,
Drew Fustini <dfustini@baylibre.com>,
Dave Martin <Dave.Martin@arm.com>,
Anil Keshavamurthy <anil.s.keshavamurthy@intel.com>,
Chen Yu <yu.c.chen@intel.com>,
x86@kernel.org, linux-kernel@vger.kernel.org,
patches@lists.linux.dev
Subject: Re: [PATCH v6 14/30] x86,fs/resctrl: Support binary fixed point event counters
Date: Wed, 9 Jul 2025 09:52:32 -0700 [thread overview]
Message-ID: <aG6eUJDdbx7zgm89@agluck-desk3> (raw)
In-Reply-To: <8214ae1f-d64c-496c-b41d-13b31250acea@intel.com>
On Tue, Jul 08, 2025 at 02:46:00PM -0700, Reinette Chatre wrote:
> > -void resctrl_enable_mon_event(enum resctrl_event_id eventid, bool any_cpu)
> > +void resctrl_enable_mon_event(enum resctrl_event_id eventid, bool any_cpu, u32 binary_bits)
> > {
> > - if (WARN_ON_ONCE(eventid < QOS_FIRST_EVENT || eventid >= QOS_NUM_EVENTS))
> > + if (WARN_ON_ONCE(eventid < QOS_FIRST_EVENT || eventid >= QOS_NUM_EVENTS) ||
> > + binary_bits > MAX_BINARY_BITS)
>
> This alignment is off.
I think the problem is location of the parentheses. An invalid
"binary_bits" value should trigger the WARN, just as an invalid
eventid.
So I'll change to:
if (WARN_ON_ONCE(eventid < QOS_FIRST_EVENT || eventid >= QOS_NUM_EVENTS ||
binary_bits > MAX_BINARY_BITS))
-Tony
next prev parent reply other threads:[~2025-07-09 16:52 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-26 16:49 [PATCH v6 00/30] x86,fs/resctrl telemetry monitoring Tony Luck
2025-06-26 16:49 ` [PATCH v6 01/30] x86,fs/resctrl: Consolidate monitor event descriptions Tony Luck
2025-06-27 21:55 ` Fenghua Yu
2025-07-08 20:52 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 02/30] x86,fs/resctrl: Replace architecture event enabled checks Tony Luck
2025-06-27 22:15 ` Fenghua Yu
2025-07-08 20:52 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 03/30] x86/resctrl: Remove 'rdt_mon_features' global variable Tony Luck
2025-07-08 20:53 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 04/30] x86,fs/resctrl: Prepare for more monitor events Tony Luck
2025-07-08 20:55 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 05/30] x86,fs/resctrl: Improve domain type checking Tony Luck
2025-07-08 21:01 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 06/30] x86/resctrl: Move L3 initialization out of domain_add_cpu_mon() Tony Luck
2025-07-08 20:56 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 07/30] x86,fs/resctrl: Refactor domain_remove_cpu_mon() ready for new domain types Tony Luck
2025-07-08 20:57 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 08/30] x86/resctrl: Clean up domain_remove_cpu_ctrl() Tony Luck
2025-06-26 16:49 ` [PATCH v6 09/30] x86,fs/resctrl: Use struct rdt_domain_hdr instead of struct rdt_mon_domain Tony Luck
2025-07-08 21:04 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 10/30] x86,fs/resctrl: Rename struct rdt_mon_domain and rdt_hw_mon_domain Tony Luck
2025-07-08 21:06 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 11/30] x86,fs/resctrl: Rename some L3 specific functions Tony Luck
2025-07-08 21:08 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 12/30] fs/resctrl: Make event details accessible to functions when reading events Tony Luck
2025-07-09 22:12 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 13/30] x86,fs/resctrl: Handle events that can be read from any CPU Tony Luck
2025-07-08 21:15 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 14/30] x86,fs/resctrl: Support binary fixed point event counters Tony Luck
2025-06-27 21:22 ` Fenghua Yu
2025-06-27 22:28 ` Luck, Tony
2025-06-27 21:49 ` Fenghua Yu
2025-07-08 21:46 ` Reinette Chatre
2025-07-09 16:52 ` Luck, Tony [this message]
2025-06-26 16:49 ` [PATCH v6 15/30] x86,fs/resctrl: Add an architectural hook called for each mount Tony Luck
2025-06-26 16:49 ` [PATCH v6 16/30] x86,fs/resctrl: Add and initialize rdt_resource for package scope core monitor Tony Luck
2025-07-08 22:05 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 17/30] x86/resctrl: Discover hardware telemetry events Tony Luck
2025-06-27 18:06 ` Luck, Tony
2025-07-03 18:27 ` Reinette Chatre
2025-07-03 20:17 ` Luck, Tony
2025-07-03 20:31 ` Reinette Chatre
2025-07-03 21:11 ` Luck, Tony
2025-07-03 22:00 ` Reinette Chatre
2025-07-03 23:29 ` Luck, Tony
2025-07-08 23:51 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 18/30] x86/resctrl: Count valid telemetry aggregators per package Tony Luck
2025-07-09 2:20 ` Reinette Chatre
2025-07-09 18:12 ` Luck, Tony
2025-07-09 22:13 ` Reinette Chatre
2025-07-09 22:48 ` Luck, Tony
2025-07-09 22:59 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 19/30] x86/resctrl: Complete telemetry event enumeration Tony Luck
2025-07-09 2:38 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 20/30] x86,fs/resctrl: Fill in details of Clearwater Forest events Tony Luck
2025-07-09 3:00 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 21/30] x86,fs/resctrl: Add architectural event pointer Tony Luck
2025-07-09 3:21 ` Reinette Chatre
2025-07-09 21:16 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 22/30] x86/resctrl: Read core telemetry events Tony Luck
2025-07-09 15:48 ` Reinette Chatre
2025-07-09 21:57 ` Luck, Tony
2025-07-09 22:13 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 23/30] x86/resctrl: Handle domain creation/deletion for RDT_RESOURCE_PERF_PKG Tony Luck
2025-07-09 22:13 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 24/30] x86/resctrl: Add energy/perf choices to rdt boot option Tony Luck
2025-07-09 22:14 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 25/30] x86/resctrl: Handle number of RMIDs supported by telemetry resources Tony Luck
2025-07-09 22:17 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 26/30] x86,fs/resctrl: Move RMID initialization to first mount Tony Luck
2025-07-09 22:18 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 27/30] x86/resctrl: Enable RDT_RESOURCE_PERF_PKG Tony Luck
2025-06-26 16:49 ` [PATCH v6 28/30] fs/resctrl: Provide interface to create a debugfs info directory Tony Luck
2025-07-09 22:19 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 29/30] x86/resctrl: Add debug info/PERF_PKG_MON/status files Tony Luck
2025-07-09 22:22 ` Reinette Chatre
2025-06-26 16:49 ` [PATCH v6 30/30] x86,fs/resctrl: Update Documentation for package events Tony Luck
2025-07-09 22:24 ` Reinette Chatre
2025-06-27 0:26 ` [PATCH v6 00/30] x86,fs/resctrl telemetry monitoring Luck, Tony
2025-06-27 18:09 ` Luck, Tony
2025-06-30 17:51 ` Reinette Chatre
2025-06-30 22:46 ` Luck, Tony
2025-07-08 20:50 ` Reinette Chatre
2025-07-03 16:45 ` Reinette Chatre
2025-07-03 17:22 ` Luck, Tony
2025-07-08 19:08 ` Luck, Tony
2025-07-08 20:49 ` Reinette Chatre
2025-07-08 22:43 ` Luck, Tony
2025-07-08 23:26 ` Reinette Chatre
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