linux-kernel - Re: [PATCH] checkpatch: Remove migrated RCU APIs from deprecated

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Message-ID: <dea6be36-0462-4076-b6ae-56886b495b01@paulmck-laptop>
Date: Wed, 8 Jan 2025 12:01:58 -0800
From: "Paul E. McKenney" <paulmck@...nel.org>
To: David Reaver <me@...idreaver.com>
Cc: Andy Whitcroft <apw@...onical.com>, Joe Perches <joe@...ches.com>,
	Dwaipayan Ray <dwaipayanray1@...il.com>,
	Lukas Bulwahn <lukas.bulwahn@...il.com>, rcu@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Krister Johansen <kjlx@...pleofstupid.com>
Subject: Re: [PATCH] checkpatch: Remove migrated RCU APIs from deprecated_apis

On Wed, Jan 08, 2025 at 11:24:54AM -0800, David Reaver wrote:
> The deprecated_apis map was created in [1] so checkpatch would flag
> deprecated RCU APIs. These deprecated APIs have since been removed from the
> kernel. This patch removes them from this map so checkpatch doesn't waste
> time looking for them, and so readers of checkpatch looking for deprecated
> APIs don't waste time searching for them.
> 
> Link: https://lore.kernel.org/all/20181111192904.3199-13-paulmck@linux.ibm.com/ [1]
> 
> Signed-off-by: David Reaver <me@...idreaver.com>

I guess it has been more than five years now.  ;-)

Reviewed-by: Paul E. McKenney <paulmck@...nel.org>

> ---
>  scripts/checkpatch.pl | 10 ----------
>  1 file changed, 10 deletions(-)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 9eed3683ad76..842a39a01af1 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -834,1 +834,1 @@ foreach my $entry (@mode_permission_funcs) {
>  $mode_perms_search = "(?:${mode_perms_search})";
> 
>  our %deprecated_apis = (
> -	"synchronize_rcu_bh"			=> "synchronize_rcu",
> -	"synchronize_rcu_bh_expedited"		=> "synchronize_rcu_expedited",
> -	"call_rcu_bh"				=> "call_rcu",
> -	"rcu_barrier_bh"			=> "rcu_barrier",
> -	"synchronize_sched"			=> "synchronize_rcu",
> -	"synchronize_sched_expedited"		=> "synchronize_rcu_expedited",
> -	"call_rcu_sched"			=> "call_rcu",
> -	"rcu_barrier_sched"			=> "rcu_barrier",
> -	"get_state_synchronize_sched"		=> "get_state_synchronize_rcu",
> -	"cond_synchronize_sched"		=> "cond_synchronize_rcu",
>  	"kmap"					=> "kmap_local_page",
>  	"kunmap"				=> "kunmap_local",
>  	"kmap_atomic"				=> "kmap_local_page",
>