129 static int init_uevent_argv(struct kobj_uevent_env *env, const char *subsystem)  in init_uevent_argv()  argument
133 	len = strlcpy(&env->buf[env->buflen], subsystem,  in init_uevent_argv()
134 		      sizeof(env->buf) - env->buflen);  in init_uevent_argv()
135 	if (len >= (sizeof(env->buf) - env->buflen)) {  in init_uevent_argv()
140 	env->argv[0] = uevent_helper;  in init_uevent_argv()
141 	env->argv[1] = &env->buf[env->buflen];  in init_uevent_argv()
142 	env->argv[2] = NULL;  in init_uevent_argv()
144 	env->buflen += len + 1;  in init_uevent_argv()
167 	struct kobj_uevent_env *env;  in kobject_uevent_env()  local
227 	env = kzalloc(sizeof(struct kobj_uevent_env), GFP_KERNEL);  in kobject_uevent_env()
228 	if (!env)  in kobject_uevent_env()
239 	retval = add_uevent_var(env, "ACTION=%s", action_string);  in kobject_uevent_env()
242 	retval = add_uevent_var(env, "DEVPATH=%s", devpath);  in kobject_uevent_env()
245 	retval = add_uevent_var(env, "SUBSYSTEM=%s", subsystem);  in kobject_uevent_env()
252 			retval = add_uevent_var(env, "%s", envp_ext[i]);  in kobject_uevent_env()
260 		retval = uevent_ops->uevent(kset, kobj, env);  in kobject_uevent_env()
282 	retval = add_uevent_var(env, "SEQNUM=%llu", (unsigned long long)++uevent_seqnum);  in kobject_uevent_env()
300 		skb = alloc_skb(len + env->buflen, GFP_KERNEL);  in kobject_uevent_env()
309 			for (i = 0; i < env->envp_idx; i++) {  in kobject_uevent_env()
310 				len = strlen(env->envp[i]) + 1;  in kobject_uevent_env()
312 				strcpy(scratch, env->envp[i]);  in kobject_uevent_env()
334 		retval = add_uevent_var(env, "HOME=/");  in kobject_uevent_env()
337 		retval = add_uevent_var(env,  in kobject_uevent_env()
341 		retval = init_uevent_argv(env, subsystem);  in kobject_uevent_env()
346 		info = call_usermodehelper_setup(env->argv[0], env->argv,  in kobject_uevent_env()
347 						 env->envp, GFP_KERNEL,  in kobject_uevent_env()
348 						 NULL, cleanup_uevent_env, env);  in kobject_uevent_env()
351 			env = NULL;	/* freed by cleanup_uevent_env */  in kobject_uevent_env()
358 	kfree(env);  in kobject_uevent_env()
386 int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...)  in add_uevent_var()  argument
391 	if (env->envp_idx >= ARRAY_SIZE(env->envp)) {  in add_uevent_var()
397 	len = vsnprintf(&env->buf[env->buflen],  in add_uevent_var()
398 			sizeof(env->buf) - env->buflen,  in add_uevent_var()
402 	if (len >= (sizeof(env->buf) - env->buflen)) {  in add_uevent_var()
407 	env->envp[env->envp_idx++] = &env->buf[env->buflen];  in add_uevent_var()
408 	env->buflen += len + 1;  in add_uevent_var()