Hi Fengguang,
On Mon, 8 Oct 2012 15:14:52 +0800, Fengguang Wu wrote:
> Hi Jean,
>
> FYI, kernel build failed on
>
> tree: git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging.git i2c-for-linus
> head: c415b303a704e5c5f766fc0404093910c36cc4ab
> commit: 3ad7ea18ae8c7ddda46b7276e0bda73e707ea9c1 [9/15] i2c-i801: Support SMBus multiplexing on Asus Z8 series
> config: parisc-allyesconfig
>
> It's also failing in Linus' master and linux-next.
>
> All error/warnings:
>
> drivers/i2c/busses/i2c-i801.c: In function 'match_gpio_chip_by_label':
> drivers/i2c/busses/i2c-i801.c:1014:21: error: dereferencing pointer to incomplete type
> drivers/i2c/busses/i2c-i801.c: In function 'i801_add_mux':
> drivers/i2c/busses/i2c-i801.c:1031:2: error: implicit declaration of function 'gpiochip_find' [-Werror=implicit-function-declaration]
> drivers/i2c/busses/i2c-i801.c:1031:7: warning: assignment makes pointer from integer without a cast [enabled by default]
> drivers/i2c/busses/i2c-i801.c:1050:27: error: dereferencing pointer to incomplete type
> drivers/i2c/busses/i2c-i801.c: In function 'match_gpio_chip_by_label':
> drivers/i2c/busses/i2c-i801.c:1015:1: warning: control reaches end of non-void function [-Wreturn-type]
> cc1: some warnings being treated as errors
>
> vim +1014 drivers/i2c/busses/i2c-i801.c
>
> 3ad7ea18 Jean Delvare 2012-10-05 1008 { }
> 3ad7ea18 Jean Delvare 2012-10-05 1009 };
> 3ad7ea18 Jean Delvare 2012-10-05 1010
> 3ad7ea18 Jean Delvare 2012-10-05 1011 static int __devinit match_gpio_chip_by_label(struct gpio_chip *chip,
> 3ad7ea18 Jean Delvare 2012-10-05 1012 void *data)
> 3ad7ea18 Jean Delvare 2012-10-05 1013 {
> 3ad7ea18 Jean Delvare 2012-10-05 @1014 return !strcmp(chip->label, data);
> 3ad7ea18 Jean Delvare 2012-10-05 1015 }
> 3ad7ea18 Jean Delvare 2012-10-05 1016
> 3ad7ea18 Jean Delvare 2012-10-05 1017 /* Setup multiplexing if needed */
This code was removed by a later patch (i2c-i801: Let i2c-mux-gpio find
the GPIO chip) so investigating this build failure has little interest
at this point.
If you can still reproduce a similar build failure with Linus' latest
kernel (which has this second patch included) or today's linux-next
then please send the new error log together with the config file
triggering it. I tried hard to reproduce the problem but did not
succeed so far.
--
Jean Delvare
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