linux-kernel - Re: [PATCH v2 1/3] ARM: imx: Allow user to disable pinctrl

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <49ff070a-ce67-42d7-84ec-8b54fd7e9742@roeck-us.net>
Date: Tue, 26 Nov 2024 08:17:17 -0800
From: Guenter Roeck <linux@...ck-us.net>
To: Esben Haabendal <esben@...nix.com>
Cc: Russell King <linux@...linux.org.uk>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Dong Aisheng <aisheng.dong@....com>, Jacky Bai <ping.bai@....com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	Rasmus Villemoes <rasmus.villemoes@...vas.dk>,
	linux-arm-kernel@...ts.infradead.org, imx@...ts.linux.dev,
	linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org
Subject: Re: [PATCH v2 1/3] ARM: imx: Allow user to disable pinctrl

On Mon, May 06, 2024 at 12:23:53PM +0200, Esben Haabendal wrote:
> Making pinctrl drivers and subsequently the pinctrl framework
> user-controllable, allows building a kernel without this.
> While in many (most) cases, this could make the system unbootable, it
> does allow building smaller kernels for those situations where picntrl
> is not needed.
> 
> One such situation is when building a kernel for NXP LS1021A systems,
> which does not have run-time controllable pinctrl, so pinctrl framework
> and drivers are 100% dead-weight.
> 
> 
> Signed-off-by: Esben Haabendal <esben@...nix.com>

This patch didn't update default configurations, meaning PINCTRL is now
disabled by affected configurations such as imx_v4_v5_defconfig or
imx_v6_v7_defconfig, making pretty much all imx platforms non-bootable
unless the default configuration is changed manually.

Guenter