Hi Krzysztof, [auto build test WARNING on usb/usb-testing] [also build test WARNING on v4.9-rc8 next-20161205] [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/Krzysztof-Opasiak/usb-gadget-udc-core-Rescan-pending-list-on-driver-unbind/20161206-185131 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing config: x86_64-randconfig-s0-12061826 (attached as .config) compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/usb/gadget/udc/core.c: In function 'usb_add_gadget_udc_release': >> drivers/usb/gadget/udc/core.c:1114: warning: unused variable 'driver' At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" drivers/usb/gadget/udc/core.o: warning: objtool: usb_gadget_map_request_by_dev()+0x90: function has unreachable instruction vim +/driver +1114 drivers/usb/gadget/udc/core.c 60068fb97 drivers/usb/gadget/udc/core.c Krzysztof Opasiak 2016-12-06 1098 return ret; 60068fb97 drivers/usb/gadget/udc/core.c Krzysztof Opasiak 2016-12-06 1099 } 60068fb97 drivers/usb/gadget/udc/core.c Krzysztof Opasiak 2016-12-06 1100 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1101 /** 792bfcf7a drivers/usb/gadget/udc-core.c Felipe Balbi 2013-02-26 1102 * usb_add_gadget_udc_release - adds a new gadget to the udc class driver list 792bfcf7a drivers/usb/gadget/udc-core.c Felipe Balbi 2013-02-26 1103 * @parent: the parent device to this udc. Usually the controller driver's 792bfcf7a drivers/usb/gadget/udc-core.c Felipe Balbi 2013-02-26 1104 * device. 792bfcf7a drivers/usb/gadget/udc-core.c Felipe Balbi 2013-02-26 1105 * @gadget: the gadget to be added to the list. 792bfcf7a drivers/usb/gadget/udc-core.c Felipe Balbi 2013-02-26 1106 * @release: a gadget release function. 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1107 * 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1108 * Returns zero on success, negative errno otherwise. 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1109 */ 792bfcf7a drivers/usb/gadget/udc-core.c Felipe Balbi 2013-02-26 1110 int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget, 792bfcf7a drivers/usb/gadget/udc-core.c Felipe Balbi 2013-02-26 1111 void (*release)(struct device *dev)) 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1112 { 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1113 struct usb_udc *udc; 855ed04a3 drivers/usb/gadget/udc/udc-core.c Ruslan Bilovol 2015-11-23 @1114 struct usb_gadget_driver *driver; 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1115 int ret = -ENOMEM; 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1116 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1117 udc = kzalloc(sizeof(*udc), GFP_KERNEL); 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1118 if (!udc) 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1119 goto err1; 2ccea03a8 drivers/usb/gadget/udc-core.c Felipe Balbi 2011-06-28 1120 f07bd56bb drivers/usb/gadget/udc-core.c Felipe Balbi 2013-01-24 1121 dev_set_name(&gadget->dev, "gadget"); 5702f7537 drivers/usb/gadget/udc-core.c Felipe Balbi 2013-07-17 1122 INIT_WORK(&gadget->work, usb_gadget_state_work); :::::: The code at line 1114 was first introduced by commit :::::: 855ed04a3758b205e84b269f92d26ab36ed8e2f7 usb: gadget: udc-core: independent registration of gadgets and gadget drivers :::::: TO: Ruslan Bilovol <ruslan.bilovol@xxxxxxxxx> :::::: CC: Felipe Balbi <balbi@xxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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