linux-hardening - Re: [PATCH] ARM: unwind: improve unwinders for noreturn case

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Date: Wed, 20 Mar 2024 03:34:04 +0000
From: Matthew Wilcox <willy@...radead.org>
To: Jiangfeng Xiao <xiaojiangfeng@...wei.com>
Cc: Kees Cook <keescook@...omium.org>, linux@...linux.org.uk, arnd@...db.de,
	rmk+kernel@...linux.org.uk, haibo.li@...iatek.com,
	angelogioacchino.delregno@...labora.com, amergnat@...libre.com,
	akpm@...ux-foundation.org, dave.hansen@...ux.intel.com,
	douzhaolei@...wei.com, gustavoars@...nel.org, jpoimboe@...nel.org,
	kepler.chenxin@...wei.com, kirill.shutemov@...ux.intel.com,
	linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, linux-arm-kernel@...ts.infradead.org,
	nixiaoming@...wei.com, peterz@...radead.org, wangbing6@...wei.com,
	wangfangpeng1@...wei.com, jannh@...gle.com, David.Laight@...lab.com
Subject: Re: [PATCH] ARM: unwind: improve unwinders for noreturn case

On Wed, Mar 20, 2024 at 11:30:13AM +0800, Jiangfeng Xiao wrote:
> The checkpatch.pl script reports the "WARNING: printk() should
> include KERN_<LEVEL> facility level" warning.
> 
> That's why I changed printk to pr_warn.
> I should change printk to printk(KERN_DEFAULT).

No, you should ignore checkpatch.  For bonus points, figure out why you
should ignore it specifically in this case.