Messages in this thread | | | Date | Sat, 18 Feb 2017 14:30:17 +0800 | From | kbuild test robot <> | Subject | Re: [PATCH v2 3/3] Make vmbus register arguments read-only |
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Hi Eddie,
[auto build test WARNING on linus/master] [also build test WARNING on v4.10-rc8 next-20170217] [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/Eddie-Kovsky/provide-check-for-ro_after_init-memory-sections/20170218-141040 config: i386-randconfig-x007-201707 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386
All warnings (new ones prefixed by >>):
drivers/hv/vmbus_drv.c: In function '__vmbus_driver_register': >> drivers/hv/vmbus_drv.c:1056:26: warning: passing argument 1 of 'kernel_ro_address' makes integer from pointer without a cast [-Wint-conversion] ret = kernel_ro_address(&hv_driver); ^ In file included from include/linux/list.h:8:0, from include/linux/module.h:9, from drivers/hv/vmbus_drv.c:26: include/linux/kernel.h:446:12: note: expected 'long unsigned int' but argument is of type 'struct hv_driver **' extern int kernel_ro_address(unsigned long addr); ^~~~~~~~~~~~~~~~~ drivers/hv/vmbus_drv.c: In function 'vmbus_device_register': drivers/hv/vmbus_drv.c:1127:26: warning: passing argument 1 of 'kernel_ro_address' makes integer from pointer without a cast [-Wint-conversion] ret = kernel_ro_address(&child_device_obj); ^ In file included from include/linux/list.h:8:0, from include/linux/module.h:9, from drivers/hv/vmbus_drv.c:26: include/linux/kernel.h:446:12: note: expected 'long unsigned int' but argument is of type 'struct hv_device **' extern int kernel_ro_address(unsigned long addr); ^~~~~~~~~~~~~~~~~
vim +/kernel_ro_address +1056 drivers/hv/vmbus_drv.c
1040 * 1041 * Registers the given driver with Linux through the 'driver_register()' call 1042 * and sets up the hyper-v vmbus handling for this driver. 1043 * It will return the state of the 'driver_register()' call. 1044 * 1045 */ 1046 int __vmbus_driver_register(struct hv_driver *hv_driver, struct module *owner, const char *mod_name) 1047 { 1048 int ret; 1049 1050 pr_info("registering driver %s\n", hv_driver->name); 1051 1052 ret = vmbus_exists(); 1053 if (ret < 0) 1054 return ret; 1055 > 1056 ret = kernel_ro_address(&hv_driver); 1057 if (ret < 1) 1058 pr_err("Module address is not read-only."); 1059 return ret; 1060 1061 hv_driver->driver.name = hv_driver->name; 1062 hv_driver->driver.owner = owner; 1063 hv_driver->driver.mod_name = mod_name; 1064 hv_driver->driver.bus = &hv_bus;
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