On 13/01/16 10:49, Martyn Welch wrote:
On 13/01/16 10:42, kbuild test robot wrote:
Hi Martyn,
[auto build test ERROR on usb/usb-testing]
[also build test ERROR on next-20160113]
[cannot apply to v4.4]
[if your patch is applied to the wrong git tree, please drop us a note
to help improving the system]
url:
https://github.com/0day-ci/linux/commits/Martyn-Welch/USB-serial-cp210x-Adding-GPIO-support-for-CP2105/20160113-183312
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
usb-testing
config: x86_64-randconfig-x018-01110856 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All error/warnings (new ones prefixed by >>):
drivers/usb/serial/cp210x.c:211:19: error: field 'gc' has incomplete
type
struct gpio_chip gc;
^
CONFIG_GPIOLIB isn't set in this build, which also reminds me that I
missed the GPIO maintainers off the patch submission :-(
...and it finally dawns on me that this is an issue.
Will fix.
Martyn
In file included from drivers/usb/serial/cp210x.c:16:0:
drivers/usb/serial/cp210x.c: In function 'cp210x_gpio_get':
include/linux/kernel.h:813:48: warning: initialization from
incompatible pointer type [-Wincompatible-pointer-types]
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/usb/serial/cp210x.c:1017:5: note: in expansion of macro
'container_of'
container_of(gc, struct cp210x_port_private, gc);
^
include/linux/kernel.h:813:48: note: (near initialization for
'port_priv')
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/usb/serial/cp210x.c:1017:5: note: in expansion of macro
'container_of'
container_of(gc, struct cp210x_port_private, gc);
^
drivers/usb/serial/cp210x.c: In function 'cp210x_gpio_set':
include/linux/kernel.h:813:48: warning: initialization from
incompatible pointer type [-Wincompatible-pointer-types]
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/usb/serial/cp210x.c:1056:5: note: in expansion of macro
'container_of'
container_of(gc, struct cp210x_port_private, gc);
^
include/linux/kernel.h:813:48: note: (near initialization for
'port_priv')
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
^
drivers/usb/serial/cp210x.c:1056:5: note: in expansion of macro
'container_of'
container_of(gc, struct cp210x_port_private, gc);
^
drivers/usb/serial/cp210x.c: In function 'cp210x_shared_gpio_init':
drivers/usb/serial/cp210x.c:1164:11: error: implicit declaration of
function 'gpiochip_add' [-Werror=implicit-function-declaration]
result = gpiochip_add(&port_priv->gc);
^
drivers/usb/serial/cp210x.c: In function 'cp210x_port_remove':
drivers/usb/serial/cp210x.c:1217:3: error: implicit declaration of
function 'gpiochip_remove' [-Werror=implicit-function-declaration]
gpiochip_remove(&port_priv->gc);
^
cc1: some warnings being treated as errors
vim +/gc +211 drivers/usb/serial/cp210x.c
205 MODULE_DEVICE_TABLE(usb, id_table);
206
207 struct cp210x_port_private {
208 __u8 bInterfaceNumber;
209 bool has_swapped_line_ctl;
210 struct usb_serial *serial;
> 211 struct gpio_chip gc;
212 };
213
214 static struct usb_serial_driver cp210x_device = {
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