Hi Rahul, Thank you for the patch! Yet something to improve: [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/Rahul-Lakkireddy/fs-crashdd-add-API-to-collect-hardware-dump-in-second-kernel/20180324-193856 config: i386-randconfig-n0-201811 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 All error/warnings (new ones prefixed by >>): In file included from fs/crashdd/crashdd.c:8:0: >> fs/crashdd/crashdd_internal.h:13:23: error: field 'bin_attr' has incomplete type struct bin_attribute bin_attr; /* Binary dump file's attributes */ ^~~~~~~~ fs/crashdd/crashdd.c: In function 'crashdd_read': >> fs/crashdd/crashdd.c:20:43: error: dereferencing pointer to incomplete type 'struct bin_attribute' struct crashdd_dump_node *dump = bin_attr->private; ^~ fs/crashdd/crashdd.c: In function 'crashdd_mkdir': >> fs/crashdd/crashdd.c:28:9: error: implicit declaration of function 'kobject_create_and_add'; did you mean 'proc_create_data'? [-Werror=implicit-function-declaration] return kobject_create_and_add(name, crashdd_kobj); ^~~~~~~~~~~~~~~~~~~~~~ proc_create_data >> fs/crashdd/crashdd.c:28:9: warning: return makes pointer from integer without a cast [-Wint-conversion] return kobject_create_and_add(name, crashdd_kobj); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/crashdd/crashdd.c: In function 'crashdd_add_file': >> fs/crashdd/crashdd.c:40:9: error: implicit declaration of function 'sysfs_create_bin_file' [-Werror=implicit-function-declaration] return sysfs_create_bin_file(kobj, &dump->bin_attr); ^~~~~~~~~~~~~~~~~~~~~ fs/crashdd/crashdd.c: In function 'crashdd_rmdir': >> fs/crashdd/crashdd.c:45:2: error: implicit declaration of function 'kobject_put'; did you mean 'kref_put'? [-Werror=implicit-function-declaration] kobject_put(kobj); ^~~~~~~~~~~ kref_put fs/crashdd/crashdd.c: In function 'crashdd_get_driver': >> fs/crashdd/crashdd.c:102:25: error: dereferencing pointer to incomplete type 'struct kobject' if (!strcmp(node->kobj->name, name)) { ^~ fs/crashdd/crashdd.c: In function 'crashdd_init': >> fs/crashdd/crashdd.c:228:51: error: 'kernel_kobj' undeclared (first use in this function); did you mean 'kernel_read'? crashdd_kobj = kobject_create_and_add("crashdd", kernel_kobj); ^~~~~~~~~~~ kernel_read fs/crashdd/crashdd.c:228:51: note: each undeclared identifier is reported only once for each function it appears in fs/crashdd/crashdd.c: In function 'crashdd_add_file': >> fs/crashdd/crashdd.c:41:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ cc1: some warnings being treated as errors vim +/bin_attr +13 fs/crashdd/crashdd_internal.h 6 7 /* Binary dump file's context internal to crashdd */ 8 struct crashdd_dump_node { 9 /* Pointer to list of dumps under the driver sysfs entry */ 10 struct list_head list; 11 void *buf; /* Buffer containing device's dump */ 12 unsigned long size; /* Size of the buffer */ > 13 struct bin_attribute bin_attr; /* Binary dump file's attributes */ 14 }; 15 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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