89 const struct cdevsw nocdev = NO_CDEVICE;
187 	struct cdevsw * devsw;  in cdevsw_isfree()
195 		devsw = &cdevsw[index];  in cdevsw_isfree()
197 			if (memcmp((const char *)devsw, (const char *)&nocdev, sizeof(struct cdevsw)) == 0) {  in cdevsw_isfree()
207 	devsw = &cdevsw[index];  in cdevsw_isfree()
208 	if ((memcmp((const char *)devsw, (const char *)&nocdev, sizeof(struct cdevsw)) != 0)) {  in cdevsw_isfree()
229 cdevsw_add(int index, const struct cdevsw * csw)  in cdevsw_add()
236 		cdevsw[index] = *csw;  in cdevsw_add()
246 cdevsw_remove(int index, const struct cdevsw * csw)  in cdevsw_remove()
248 	struct cdevsw * devsw;  in cdevsw_remove()
254 	devsw = &cdevsw[index];  in cdevsw_remove()
256 	if ((memcmp((const char *)devsw, (const char *)csw, sizeof(struct cdevsw)) != 0)) {  in cdevsw_remove()
259 		cdevsw[index] = nocdev;  in cdevsw_remove()
273 cdevsw_add_with_bdev(int index, const struct cdevsw * csw, int bdev)  in cdevsw_add_with_bdev()
287 cdevsw_setkqueueok(int maj, const struct cdevsw * csw, int extra_flags)  in cdevsw_setkqueueok()
289 	struct cdevsw * devsw;  in cdevsw_setkqueueok()
296 	devsw = &cdevsw[maj];  in cdevsw_setkqueueok()
297 	if ((memcmp((const char *)devsw, (const char *)csw, sizeof(struct cdevsw)) != 0)) {  in cdevsw_setkqueueok()