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From: Joe Perches <joe@perches.com>
To: Rob Herring <robherring2@gmail.com>
Cc: Dave Jiang <dave.jiang@intel.com>,
	Bart Van Assche <bvanassche@acm.org>,
	ksummit <ksummit-discuss@lists.linuxfoundation.org>,
	linux-nvdimm <linux-nvdimm@lists.01.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Vishal Verma <vishal.l.verma@intel.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Steve French <stfrench@microsoft.com>,
	"Tobin C. Harding" <me@tobin.cc>
Subject: Re: [Ksummit-discuss] [PATCH v2 0/3] Maintainer Entry Profiles
Date: Fri, 13 Sep 2019 11:42:38 -0700
Message-ID: <78f67ee934f167b433517da81c6a0d3f35c4b123.camel@perches.com> (raw)
In-Reply-To: <CAL_JsqJju36BZPK6DJab28Ne-ORpEyPpxH0H4DuymxFMabpMRQ@mail.gmail.com>

On Fri, 2019-09-13 at 15:26 +0100, Rob Herring wrote:
> On Fri, Sep 13, 2019 at 3:12 PM Joe Perches <joe@perches.com> wrote:
> > On Thu, 2019-09-12 at 13:01 -0700, Bart Van Assche wrote:
> > 
> > > Another argument in favor of W=1 is that the formatting of kernel-doc
> > > headers is checked only if W=1 is passed to make.
> > 
> > Actually, but for the fact there are far too many
> > to generally enable that warning right now,
> > (an x86-64 defconfig has more than 1000)
> > that sounds pretty reasonable to me.

> It's in the 1000s on arm because W=1 turns on more checks in building
> .dts files. There are lots of duplicates as most of the dts content is
> as an include file (e.g. board dts includes soc dts).

Yeah, dts[i] files in arm compilations are very noisy at W=1
so moving those message types to W=2 seems sensible.

$ { opt="ARCH=arm CROSS_COMPILE=arm-unknown-linux-gnueabi-" ; make $opt clean ; make $opt defconfig ; make $opt W=1 -j4 ; } > arm_make.log 2>&1

$ grep -i -P 'dtsi?:.*warning' arm_make.log | wc -l
69164

Just fyi:  for an x86-64 defconfig with gcc 8.3

$ { make clean ; make defconfig ; make -j4 W=1 ; } > make.log 2>&1

There are ~300 W=1 for non kernel-doc -W<foo> warnings.

$ grep -i -P -oh '\[\-W[\w\-]+\]' make.log |sort | uniq -c | sort -rn
    163 [-Wmissing-prototypes]
     69 [-Wunused-but-set-variable]
     16 [-Wempty-body]
     10 [-Wtype-limits]
      6 [-Woverride-init]
      2 [-Wstringop-truncation]
      2 [-Wcast-function-type]
      1 [-Wunused-but-set-parameter]

And there are ~1000 kernel-doc only messages in various files

$ grep -i 'function parameter' make.log | cut -f1 -d: | sort | uniq -c
      6 arch/x86/events/intel/pt.c
      2 arch/x86/kernel/apic/apic.c
     10 arch/x86/kernel/cpu/mtrr/generic.c
      5 arch/x86/kernel/crash_dump_64.c
      1 arch/x86/kernel/i8259.c
      3 arch/x86/kernel/smpboot.c
      3 arch/x86/kernel/tsc.c
      2 arch/x86/kernel/uprobes.c
      1 arch/x86/lib/cmdline.c
      1 arch/x86/lib/insn.c
      2 arch/x86/lib/insn-eval.c
      4 arch/x86/lib/msr.c
      2 arch/x86/lib/usercopy_64.c
      1 arch/x86/mm/pat.c
     13 arch/x86/mm/pgtable.c
      1 arch/x86/pci/i386.c
      2 arch/x86/power/cpu.c
      2 arch/x86/power/hibernate.c
      8 certs/system_keyring.c
      4 crypto/asymmetric_keys/asymmetric_type.c
      3 crypto/asymmetric_keys/pkcs7_trust.c
     16 crypto/jitterentropy.c
      3 drivers/acpi/acpi_apd.c
      3 drivers/acpi/bus.c
      2 drivers/acpi/cppc_acpi.c
      5 drivers/acpi/device_sysfs.c
      2 drivers/acpi/dock.c
      2 drivers/acpi/nvs.c
      1 drivers/acpi/pci_root.c
      5 drivers/acpi/property.c
      4 drivers/acpi/sleep.c
      7 drivers/acpi/utils.c
      1 drivers/ata/libata-acpi.c
      2 drivers/ata/libata-pmp.c
      6 drivers/ata/libata-transport.c
      4 drivers/ata/pata_amd.c
      4 drivers/base/attribute_container.c
      1 drivers/base/devcon.c
      3 drivers/base/platform-msi.c
      3 drivers/base/power/runtime.c
      5 drivers/base/power/wakeup.c
      2 drivers/char/agp/backend.c
      3 drivers/char/agp/generic.c
      2 drivers/clk/clk.c
      1 drivers/clk/clk-fixed-factor.c
      1 drivers/clk/clk-fixed-rate.c
      3 drivers/connector/cn_proc.c
     31 drivers/cpufreq/cpufreq.c
      3 drivers/cpufreq/cpufreq_governor.c
      7 drivers/cpufreq/freq_table.c
      1 drivers/cpufreq/intel_pstate.c
      6 drivers/cpuidle/sysfs.c
      1 drivers/dma-buf/dma-buf.c
      1 drivers/dma-buf/dma-fence-chain.c
      6 drivers/dma/dmaengine.c
      7 drivers/firewire/init_ohci1394_dma.c
      2 drivers/firmware/efi/memmap.c
      1 drivers/firmware/efi/vars.c
     20 drivers/gpu/drm/drm_agpsupport.c
      8 drivers/hid/hid-core.c
      3 drivers/hid/hid-quirks.c
      5 drivers/hid/usbhid/hid-pidff.c
      3 drivers/input/mouse/synaptics.c
      2 drivers/iommu/amd_iommu_init.c
      2 drivers/iommu/dmar.c
      1 drivers/iommu/intel-pasid.c
      1 drivers/iommu/iommu.c
      2 drivers/leds/led-class.c
      2 drivers/mailbox/pcc.c
      6 drivers/net/ethernet/intel/e1000/e1000_hw.c
     21 drivers/net/ethernet/intel/e1000/e1000_main.c
      1 drivers/net/ethernet/intel/e1000e/80003es2lan.c
      6 drivers/net/ethernet/intel/e1000e/ich8lan.c
     42 drivers/net/ethernet/intel/e1000e/netdev.c
      3 drivers/net/ethernet/intel/e1000e/phy.c
      2 drivers/net/ethernet/intel/e1000e/ptp.c
      1 drivers/net/netconsole.c
      3 drivers/net/phy/mdio-boardinfo.c
      2 drivers/net/phy/mdio_device.c
      2 drivers/pci/ats.c
      3 drivers/pci/hotplug/acpi_pcihp.c
      4 drivers/pci/pcie/aer.c
      2 drivers/pci/pcie/pme.c
      1 drivers/pci/setup-bus.c
      1 drivers/pci/vc.c
     22 drivers/pcmcia/cistpl.c
     13 drivers/pcmcia/pcmcia_cis.c
     13 drivers/pcmcia/pcmcia_resource.c
     11 drivers/pcmcia/rsrc_nonstatic.c
      1 drivers/pnp/system.c
     11 drivers/rtc/interface.c
      3 drivers/rtc/sysfs.c
      2 drivers/thermal/step_wise.c
      2 drivers/thermal/user_space.c
      6 drivers/tty/n_tty.c
      4 drivers/tty/pty.c
      7 drivers/tty/tty_audit.c
      7 drivers/tty/tty_baudrate.c
     13 drivers/tty/tty_buffer.c
     25 drivers/tty/tty_io.c
      5 drivers/tty/tty_jobctrl.c
      6 drivers/tty/tty_ldisc.c
      6 drivers/tty/tty_port.c
      5 drivers/tty/vt/consolemap.c
      4 drivers/tty/vt/vt.c
      3 drivers/tty/vt/vt_ioctl.c
     12 drivers/usb/common/debug.c
      1 drivers/usb/host/pci-quirks.c
      1 drivers/usb/host/xhci.c
      6 drivers/usb/host/xhci-mem.c
      2 drivers/video/backlight/backlight.c
      1 drivers/video/fbdev/core/fbmon.c
      2 drivers/video/fbdev/core/fb_notify.c
      7 fs/devpts/inode.c
      4 fs/direct-io.c
      3 fs/eventpoll.c
      6 fs/fat/dir.c
      3 fs/fat/misc.c
      6 fs/fat/nfs.c
      4 fs/fs_context.c
      1 fs/fs_parser.c
      2 fs/fs-writeback.c
      5 fs/ioctl.c
      1 fs/libfs.c
      3 fs/namespace.c
      2 fs/nfs_common/grace.c
      2 fs/open.c
      3 fs/posix_acl.c
      1 fs/proc/proc_net.c
      2 fs/proc/vmcore.c
      2 fs/read_write.c
      1 fs/super.c
      5 fs/xattr.c
      2 kernel/cgroup/cpuset.c
      1 kernel/cpu.c
      4 kernel/events/core.c
      2 kernel/events/hw_breakpoint.c
      5 kernel/fork.c
     27 kernel/irq/irqdomain.c
      3 kernel/irq/matrix.c
      1 kernel/kprobes.c
      5 kernel/locking/rtmutex.c
      1 kernel/notifier.c
      3 kernel/power/main.c
      2 kernel/power/qos.c
     51 kernel/power/snapshot.c
      2 kernel/power/suspend.c
     14 kernel/power/swap.c
      1 kernel/reboot.c
      4 kernel/seccomp.c
      2 kernel/stacktrace.c
      4 kernel/time/alarmtimer.c
      1 kernel/time/clockevents.c
      4 kernel/time/posix-cpu-timers.c
      1 kernel/time/tick-broadcast.c
      6 kernel/time/tick-oneshot.c
      3 kernel/time/tick-sched.c
      3 kernel/time/timeconv.c
     23 kernel/time/timekeeping.c
      9 kernel/trace/ring_buffer.c
      8 kernel/trace/trace_events_filter.c
      2 kernel/trace/trace_events_trigger.c
      1 kernel/trace/trace_seq.c
      1 lib/argv_split.c
      1 lib/cpumask.c
      5 lib/genalloc.c
      4 lib/iov_iter.c
      2 lib/nlattr.c
      3 lib/percpu_counter.c
      6 lib/radix-tree.c
      2 lib/scatterlist.c
      3 lib/win_minmax.c
      1 mm/compaction.c
      2 mm/oom_kill.c
      1 mm/page_vma_mapped.c
      2 mm/swap_state.c
      1 mm/vmalloc.c
      1 mm/vmscan.c
      8 net/ipv4/cipso_ipv4.c
      3 net/ipv4/ipmr.c
      1 net/ipv4/tcp_input.c
      5 net/ipv4/tcp_output.c
      2 net/ipv4/tcp_timer.c
      3 net/ipv4/udp.c
      4 net/ipv6/calipso.c
      1 net/ipv6/exthdrs.c
      1 net/ipv6/ip6_output.c
      3 net/ipv6/udp.c
      1 net/mac80211/tx.c
      5 net/netlabel/netlabel_calipso.c
      2 net/netlabel/netlabel_domainhash.c
      3 net/sched/ematch.c
      1 net/socket.c
      1 net/wireless/radiotap.c
      4 net/wireless/reg.c
      6 security/commoncap.c
      1 security/lsm_audit.c
     12 security/selinux/avc.c
      7 security/selinux/netlabel.c
      2 security/selinux/netport.c
      4 security/selinux/ss/mls.c
     34 security/selinux/ss/services.c
      3 sound/hda/hdac_bus.c
      1 sound/hda/hdac_component.c
      2 sound/hda/hdac_controller.c
     10 sound/hda/hdac_device.c
      2 sound/hda/hdac_stream.c
      1 sound/pci/hda/hda_codec.c


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  reply index

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-11 15:48 Dan Williams
2019-09-11 15:48 ` [Ksummit-discuss] [PATCH v2 1/3] MAINTAINERS: Reclaim the P: tag for Maintainer Entry Profile Dan Williams
2019-09-13 15:37   ` Mauro Carvalho Chehab
2019-09-11 15:48 ` [Ksummit-discuss] [PATCH v2 2/3] Maintainer Handbook: " Dan Williams
2019-09-16 12:35   ` Jani Nikula
2019-10-01 13:55   ` Jonathan Corbet
2019-10-01 18:17     ` Martin K. Petersen
2019-11-07 20:13     ` Jonathan Corbet
2019-11-08  2:41       ` Dan Williams
2019-09-11 15:48 ` [Ksummit-discuss] [PATCH v2 3/3] libnvdimm, MAINTAINERS: " Dan Williams
2019-09-11 17:42   ` Vishal Verma
2019-09-11 18:43   ` Dan Carpenter
2019-09-11 22:11     ` Jens Axboe
2019-09-12  7:41       ` Dan Williams
     [not found]         ` <CANiq72k2so3ZcqA3iRziGY=Shd_B1=qGoXXROeAF7Y3+pDmqyA@mail.gmail.com>
2019-09-12 10:18           ` Joe Perches
2019-09-13  7:09       ` Jonathan Corbet
2019-09-13 11:48         ` Dan Carpenter
2019-09-13 12:18           ` Dan Williams
2019-09-13 15:00           ` Randy Dunlap
2019-09-13 15:46             ` Rob Herring
2019-09-13 16:42               ` Joe Perches
2019-09-13 19:32                 ` Rob Herring
2019-09-13 17:57             ` Geert Uytterhoeven
2019-09-16 12:42           ` Jani Nikula
     [not found]           ` <20190917161608.GA12866@ziepe.ca>
2019-09-17 21:59             ` Dan Williams
2019-09-13 21:44       ` Martin K. Petersen
2019-09-16  7:01         ` Dan Carpenter
2019-09-16 17:08           ` Martin K. Petersen
2019-09-16 17:15             ` Mark Brown
2019-09-11 20:30   ` Joe Perches
2019-09-13 16:19   ` [Ksummit-discuss] [PATCH] media: add a subsystem profile documentation Mauro Carvalho Chehab
2019-09-13 16:19     ` Mauro Carvalho Chehab
2019-09-17  3:35     ` [Ksummit-discuss] single maintainer profile directory (was Re: [PATCH] media: add a subsystem profile documentation) Kees Cook
2019-09-17 13:28       ` Mauro Carvalho Chehab
2019-09-17 16:33         ` Kees Cook
2019-09-18 11:23           ` Mauro Carvalho Chehab
2019-09-18 17:39             ` Kees Cook
2019-09-18 18:35               ` Mauro Carvalho Chehab
2019-09-21 19:13             ` Jonathan Corbet
2019-09-21 19:45               ` Mauro Carvalho Chehab
2019-09-23 22:45               ` Kees Cook
2019-09-18 12:36     ` [Ksummit-discuss] [PATCH] media: add a subsystem profile documentation Laurent Pinchart
2019-09-18 13:57       ` Mauro Carvalho Chehab
2019-09-18 17:27         ` Laurent Pinchart
2019-09-18 18:48           ` Mauro Carvalho Chehab
2019-09-19  7:08             ` Dan Carpenter
2019-09-20  5:29               ` Joe Perches
2019-09-20 14:09                 ` Daniel Vetter
2019-09-19  6:56         ` Dan Carpenter
2019-09-19  7:22           ` Geert Uytterhoeven
2019-09-19  8:49             ` Jani Nikula
2019-09-19  8:58               ` Geert Uytterhoeven
2019-09-19  9:52                 ` Jani Nikula
2019-09-20 14:53             ` Laurent Pinchart
2019-09-20 14:59               ` Doug Anderson
2019-09-21  8:56                 ` Jani Nikula
2019-09-23 15:58                   ` Doug Anderson
2019-09-23 16:04                     ` Jonathan Corbet
2019-09-19  9:52           ` Mauro Carvalho Chehab
2019-09-25 17:13           ` Joe Perches
2019-09-25 18:40             ` Kees Cook
2019-09-26 15:14               ` Joe Perches
2019-09-26 15:53                 ` Kees Cook
2019-09-26 16:02                   ` Joe Perches
2019-09-26 16:24                     ` Kees Cook
2019-09-26 10:25             ` Geert Uytterhoeven
2019-09-18 13:59       ` [Ksummit-discuss] [PATCH v2] " Mauro Carvalho Chehab
     [not found]         ` <1e479f17-dbc8-b44d-bd1e-4229a6dbf151@collabora.com>
2019-09-18 14:11           ` Mauro Carvalho Chehab
2019-09-11 16:40 ` [Ksummit-discuss] [PATCH v2 0/3] Maintainer Entry Profiles Martin K. Petersen
2019-09-12 13:31   ` Bart Van Assche
2019-09-12 15:34     ` Joe Perches
2019-09-12 20:01       ` Bart Van Assche
2019-09-12 20:34         ` Joe Perches
2019-09-13 14:26           ` Rob Herring
2019-09-13 18:42             ` Joe Perches [this message]
2019-09-13 19:17               ` Mauro Carvalho Chehab
2019-09-13 20:33                 ` Joe Perches
2019-09-13 12:56         ` Matthew Wilcox
2019-09-13 13:54           ` Mauro Carvalho Chehab
2019-09-13 14:59             ` Guenter Roeck
2019-09-13 22:03     ` Martin K. Petersen
2019-09-12 13:10 ` Bart Van Assche

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