+ checkpatch-add-idr-to-the-deprecated-list.patch added to mm-nonmm-unstable branch

+ checkpatch-add-idr-to-the-deprecated-list.patch added to mm-nonmm-unstable branch

[Andrew Morton]

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The patch titled
     Subject: checkpatch: add IDR to the deprecated list
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     checkpatch-add-idr-to-the-deprecated-list.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/checkpatch-add-idr-to-the-deprecated-list.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

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------------------------------------------------------
From: : Carlos López <clopez@suse.de>
Subject: checkpatch: add IDR to the deprecated list
Date: Fri, 31 Oct 2025 12:19:09 +0100

As of commit 85656ec193e9, the IDR interface is marked as deprecated in
the documentation, but no checks are made in that regard for new code. 
Add the existing IDR initialization APIs to the deprecated list in
checkpatch, so that if new code is introduced using these APIs, a warning
is emitted.

Link: https://lkml.kernel.org/r/20251031111908.2266077-2-clopez@suse.de
Signed-off-by: Carlos López <clopez@suse.de>
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 scripts/checkpatch.pl |    4 ++++
 1 file changed, 4 insertions(+)

--- a/scripts/checkpatch.pl~checkpatch-add-idr-to-the-deprecated-list
+++ a/scripts/checkpatch.pl
@@ -860,6 +860,10 @@ our %deprecated_apis = (
 	"kunmap"				=> "kunmap_local",
 	"kmap_atomic"				=> "kmap_local_page",
 	"kunmap_atomic"				=> "kunmap_local",
+	#These should be enough to drive away new IDR users
+	"DEFINE_IDR"				=> "DEFINE_XARRAY",
+	"idr_init"				=> "xa_init",
+	"idr_init_base"				=> "xa_init_flags"
 );
 
 #Create a search pattern for all these strings to speed up a loop below
_

Patches currently in -mm which might be from clopez@suse.de are

checkpatch-add-idr-to-the-deprecated-list.patch