Hi Marc, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on wsa/i2c/for-next] [also build test WARNING on v4.15-rc5 next-20171222] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Marc-CAPDEVILLE/i2c-core-acpi-Add-i2c_acpi_set_connection/20171226-083729 base: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next config: ia64-defconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=ia64 All warnings (new ones prefixed by >>): In file included from include/uapi/linux/posix_types.h:5:0, from include/uapi/linux/types.h:14, from include/linux/compiler.h:164, from include/linux/ioport.h:13, from include/linux/acpi.h:25, from drivers//i2c/i2c-core-base.c:24: include/linux/i2c-smbus.h: In function 'i2c_require_smbus_alert': >> include/linux/stddef.h:8:14: warning: return makes integer from pointer without a cast [-Wint-conversion] #define NULL ((void *)0) ^ >> include/linux/i2c-smbus.h:67:9: note: in expansion of macro 'NULL' return NULL; ^~~~ include/linux/i2c-smbus.h: In function 'i2c_smbus_alert_event': >> include/linux/stddef.h:8:14: warning: return makes integer from pointer without a cast [-Wint-conversion] #define NULL ((void *)0) ^ include/linux/i2c-smbus.h:72:9: note: in expansion of macro 'NULL' return NULL; ^~~~ vim +/NULL +67 include/linux/i2c-smbus.h 60 61 #if IS_ENABLED(CONFIG_I2C_SMBUS) 62 int i2c_require_smbus_alert(struct i2c_client *client); 63 int i2c_smbus_alert_event(struct i2c_client *client); 64 #else 65 static inline int i2c_require_smbus_alert(struct i2c_client *client) 66 { > 67 return NULL; 68 } 69 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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