32 static struct mce_log_buffer *mcelog;  variable
47 	entry = mcelog->next;  in dev_mce_log()
53 	if (entry >= mcelog->len) {  in dev_mce_log()
54 		set_bit(MCE_OVERFLOW, (unsigned long *)&mcelog->flags);  in dev_mce_log()
58 	mcelog->next = entry + 1;  in dev_mce_log()
60 	memcpy(mcelog->entry + entry, mce, sizeof(struct mce));  in dev_mce_log()
61 	mcelog->entry[entry].finished = 1;  in dev_mce_log()
62 	mcelog->entry[entry].kflags = 0;  in dev_mce_log()
220 	if (*off != 0 || usize < mcelog->len * sizeof(struct mce))  in mce_chrdev_read()
223 	next = mcelog->next;  in mce_chrdev_read()
227 		struct mce *m = &mcelog->entry[i];  in mce_chrdev_read()
233 	memset(mcelog->entry, 0, next * sizeof(struct mce));  in mce_chrdev_read()
234 	mcelog->next = 0;  in mce_chrdev_read()
248 	if (READ_ONCE(mcelog->next))  in mce_chrdev_poll()
267 		return put_user(mcelog->len, p);  in mce_chrdev_ioctl()
272 			flags = mcelog->flags;  in mce_chrdev_ioctl()
273 		} while (cmpxchg(&mcelog->flags, flags, 0) != flags);  in mce_chrdev_ioctl()
350 	mcelog = kzalloc(struct_size(mcelog, entry, mce_log_len), GFP_KERNEL);  in dev_mcelog_init_device()
351 	if (!mcelog)  in dev_mcelog_init_device()
354 	memcpy(mcelog->signature, MCE_LOG_SIGNATURE, sizeof(mcelog->signature));  in dev_mcelog_init_device()
355 	mcelog->len = mce_log_len;  in dev_mcelog_init_device()
356 	mcelog->recordlen = sizeof(struct mce);  in dev_mcelog_init_device()
367 		kfree(mcelog);  in dev_mcelog_init_device()