linux-kernel - Re: [PATCH] i3c: fix module_i3c_i2c

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Message-ID: <175391871296.1768453.9315319722911667776.b4-ty@bootlin.com>
Date: Thu, 31 Jul 2025 01:40:05 +0200
From: Alexandre Belloni <alexandre.belloni@...tlin.com>
To: Wolfram Sang <wsa+renesas@...g-engineering.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Boris Brezillon <bbrezillon@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Arnd Bergmann <arnd@...nel.org>
Cc: Frank Li <Frank.Li@....com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	linux-i3c@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i3c: fix module_i3c_i2c_driver() with I3C=n

On Fri, 25 Jul 2025 11:06:03 +0200, Arnd Bergmann wrote:
> When CONFIG_I3C is disabled and the i3c_i2c_driver_register() happens
> to not be inlined, any driver calling it still references the i3c_driver
> instance, which then causes a link failure:
> 
> x86_64-linux-ld: drivers/hwmon/lm75.o: in function `lm75_i3c_reg_read':
> lm75.c:(.text+0xc61): undefined reference to `i3cdev_to_dev'
> x86_64-linux-ld: lm75.c:(.text+0xd25): undefined reference to `i3c_device_do_priv_xfers'
> x86_64-linux-ld: lm75.c:(.text+0xdd8): undefined reference to `i3c_device_do_priv_xfers'
> 
> [...]

Applied, thanks!

[1/1] i3c: fix module_i3c_i2c_driver() with I3C=n
      https://git.kernel.org/abelloni/c/5523a466e905

Best regards,

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com