27  * Lockless MCE logging infrastructure.
39 	struct mce *mce = (struct mce *)data;  in dev_mce_log()  local
42 	if (mce->kflags & MCE_HANDLED_CEC)  in dev_mce_log()
60 	memcpy(mcelog->entry + entry, mce, sizeof(struct mce));  in dev_mce_log()
71 		mce->kflags |= MCE_HANDLED_MCELOG;  in dev_mce_log()
120  * mce_chrdev: Character device /dev/mcelog to read and clear the MCE log.
161 /* Collect MCE record of previous boot in persistent storage via APEI ERST. */
166 	struct mce m;  in __mce_read_apei()
168 	if (usize < sizeof(struct mce))  in __mce_read_apei()
172 	/* Error or no more MCE record */  in __mce_read_apei()
184 	if (copy_to_user(*ubuf, &m, sizeof(struct mce)))  in __mce_read_apei()
197 	*ubuf += sizeof(struct mce);  in __mce_read_apei()
219 	if (*off != 0 || usize < mcelog->len * sizeof(struct mce))  in mce_chrdev_read()
226 		struct mce *m = &mcelog->entry[i];  in mce_chrdev_read()
232 	memset(mcelog->entry, 0, next * sizeof(struct mce));  in mce_chrdev_read()
264 		return put_user(sizeof(struct mce), p);  in mce_chrdev_ioctl()
289 	struct mce m;  in mce_chrdev_write()
300 	if ((unsigned long)usize > sizeof(struct mce))  in mce_chrdev_write()
301 		usize = sizeof(struct mce);  in mce_chrdev_write()
347 	mcelog->recordlen = sizeof(struct mce);  in dev_mcelog_init_device()