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Message-ID: <87o7l92hg8.fsf@intel.com>
Date:   Wed, 21 Jun 2023 14:16:55 +0300
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Joel Granados <j.granados@...sung.com>, mcgrof@...nel.org,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
        Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Russ Weight <russell.h.weight@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Clemens Ladisch <clemens@...isch.de>,
        Arnd Bergmann <arnd@...db.de>, Corey Minyard <minyard@....org>,
        Theodore Ts'o <tytso@....edu>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
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        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
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        Daniel Vetter <daniel@...ll.ch>,
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        Jakub Kicinski <kuba@...nel.org>,
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        Sudip Mukherjee <sudipm.mukherjee@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Doug Gilbert <dgilbert@...erlog.com>,
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        John Stultz <jstultz@...gle.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Muchun Song <muchun.song@...ux.dev>,
        Naoya Horiguchi <naoya.horiguchi@....com>,
        "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        Joerg Reuter <jreuter@...na.de>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>,
        Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <razor@...ckwall.org>,
        Alexander Aring <alex.aring@...il.com>,
        Stefan Schmidt <stefan@...enfreihafen.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Matthieu Baerts <matthieu.baerts@...sares.net>,
        Mat Martineau <martineau@...nel.org>,
        Simon Horman <horms@...ge.net.au>,
        Julian Anastasov <ja@....bg>,
        Remi Denis-Courmont <courmisch@...il.com>,
        Santosh Shilimkar <santosh.shilimkar@...cle.com>,
        Marc Dionne <marc.dionne@...istor.com>,
        Neil Horman <nhorman@...driver.com>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Xin Long <lucien.xin@...il.com>,
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Cc:     Joel Granados <j.granados@...sung.com>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
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Subject: Re: [PATCH 09/11] sysctl: Remove the end element in sysctl table
 arrays

On Wed, 21 Jun 2023, Joel Granados <j.granados@...sung.com> wrote:
> Remove the empty end element from all the arrays that are passed to the
> register sysctl calls. In some files this means reducing the explicit
> array size by one. Also make sure that we are using the size in
> ctl_table_header instead of evaluating the .procname element.

Where's the harm in removing the end elements driver by driver? This is
an unwieldy patch to handle.

> diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
> index f43950219ffc..e4d7372afb10 100644
> --- a/drivers/gpu/drm/i915/i915_perf.c
> +++ b/drivers/gpu/drm/i915/i915_perf.c
> @@ -4884,24 +4884,23 @@ int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
>  
>  static struct ctl_table oa_table[] = {
>  	{
> -	 .procname = "perf_stream_paranoid",
> -	 .data = &i915_perf_stream_paranoid,
> -	 .maxlen = sizeof(i915_perf_stream_paranoid),
> -	 .mode = 0644,
> -	 .proc_handler = proc_dointvec_minmax,
> -	 .extra1 = SYSCTL_ZERO,
> -	 .extra2 = SYSCTL_ONE,
> -	 },
> +		.procname = "perf_stream_paranoid",
> +		.data = &i915_perf_stream_paranoid,
> +		.maxlen = sizeof(i915_perf_stream_paranoid),
> +		.mode = 0644,
> +		.proc_handler = proc_dointvec_minmax,
> +		.extra1 = SYSCTL_ZERO,
> +		.extra2 = SYSCTL_ONE,
> +	},
>  	{
> -	 .procname = "oa_max_sample_rate",
> -	 .data = &i915_oa_max_sample_rate,
> -	 .maxlen = sizeof(i915_oa_max_sample_rate),
> -	 .mode = 0644,
> -	 .proc_handler = proc_dointvec_minmax,
> -	 .extra1 = SYSCTL_ZERO,
> -	 .extra2 = &oa_sample_rate_hard_limit,
> -	 },
> -	{}
> +		.procname = "oa_max_sample_rate",
> +		.data = &i915_oa_max_sample_rate,
> +		.maxlen = sizeof(i915_oa_max_sample_rate),
> +		.mode = 0644,
> +		.proc_handler = proc_dointvec_minmax,
> +		.extra1 = SYSCTL_ZERO,
> +		.extra2 = &oa_sample_rate_hard_limit,
> +	}
>  };

The existing indentation is off, but fixing it doesn't really belong in
this patch.

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center

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