linux-kernel - Re: arch/um/drivers/ubd_kern.c:780:13: warning: stack frame size (2152) exceeds limit (2048) in 'ubd_device

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Message-ID: <aWs_VTjkaD5yHB-o@fedora>
Date: Sat, 17 Jan 2026 15:50:45 +0800
From: Ming Lei <ming.lei@...hat.com>
To: kernel test robot <lkp@...el.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org, Jens Axboe <axboe@...nel.dk>,
	Christoph Hellwig <hch@....de>, Hannes Reinecke <hare@...e.de>,
	Nilay Shroff <nilay@...ux.ibm.com>,
	Richard Weinberger <richard@....at>,
	Anton Ivanov <anton.ivanov@...bridgegreys.com>,
	Johannes Berg <johannes@...solutions.net>,
	linux-um@...ts.infradead.org
Subject: Re: arch/um/drivers/ubd_kern.c:780:13: warning: stack frame size
 (2152) exceeds limit (2048) in 'ubd_device_release'

On Sat, Jan 17, 2026 at 02:00:56PM +0800, kernel test robot wrote:
> Hi Ming,
> 
> FYI, the error/warning still remains.

Hello,

`arch/um/drivers/ubd_kern.c` is maintained by UML subsystem:

ming@...ora:~/git/linux$ ./scripts/get_maintainer.pl arch/um/drivers/ubd_kern.c
Richard Weinberger <richard@....at> (maintainer:USER-MODE LINUX (UML))
Anton Ivanov <anton.ivanov@...bridgegreys.com> (maintainer:USER-MODE LINUX (UML))
Johannes Berg <johannes@...solutions.net> (maintainer:USER-MODE LINUX (UML),commit_signer:2/3=67%)
...
linux-um@...ts.infradead.org (open list:USER-MODE LINUX (UML))
linux-kernel@...r.kernel.org (open list)

Thanks, 
Ming