linux-kernel - RE: linux-next: build failure after merge of the mtd tree

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Message-ID:
 <IA0PR12MB76998C672B82567715227485DC06A@IA0PR12MB7699.namprd12.prod.outlook.com>
Date: Tue, 2 Sep 2025 05:25:04 +0000
From: "Mahapatra, Amit Kumar" <amit.kumar-mahapatra@....com>
To: Stephen Rothwell <sfr@...b.auug.org.au>, Richard Weinberger
	<richard.weinberger@...il.com>
CC: Miquel Raynal <miquel.raynal@...tlin.com>, Linux Kernel Mailing List
	<linux-kernel@...r.kernel.org>, Linux Next Mailing List
	<linux-next@...r.kernel.org>
Subject: RE: linux-next: build failure after merge of the mtd tree

[AMD Official Use Only - AMD Internal Distribution Only]

Hello Stephen,

Could you please share the tree you are using along with the build steps you followed that resulted in this issue?

Regards,
Amit

> -----Original Message-----
> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Sent: Tuesday, September 2, 2025 7:39 AM
> To: Richard Weinberger <richard.weinberger@...il.com>
> Cc: Mahapatra, Amit Kumar <amit.kumar-mahapatra@....com>; Miquel Raynal
> <miquel.raynal@...tlin.com>; Linux Kernel Mailing List <linux-
> kernel@...r.kernel.org>; Linux Next Mailing List <linux-next@...r.kernel.org>
> Subject: linux-next: build failure after merge of the mtd tree
>
> Hi all,
>
> After merging the mtd tree, today's linux-next build (x86_64 allmodconfig) failed like
> this:
>
> ERROR: modpost: "mtd_virt_concat_node_create" [drivers/mtd/mtd.ko] undefined!
> ERROR: modpost: "mtd_virt_concat_add" [drivers/mtd/mtd.ko] undefined!
> ERROR: modpost: "mtd_virt_concat_create_join" [drivers/mtd/mtd.ko] undefined!
> ERROR: modpost: "mtd_virt_concat_destroy" [drivers/mtd/mtd.ko] undefined!
>
> Caused by commit
>
>   fa47dc829519 ("mtd: Add driver for concatenating devices")
>
> I have used the mtd tree from next-20250901 for today.
>
> --
> Cheers,
> Stephen Rothwell