mm/kmsan/kmsan_test.c

30 /* Report as observed from console. */
36 } observed = {
37 	.lock = __SPIN_LOCK_UNLOCKED(observed.lock),
40 /* Probe for console output: obtains observed lines of interest. */
45 	if (observed.ignore)
47 	spin_lock_irqsave(&observed.lock, flags);
56 		strscpy(observed.header, buf,
57 			min(len + 1, sizeof(observed.header)));
58 		WRITE_ONCE(observed.available, true);
59 		observed.ignore = true;
61 	spin_unlock_irqrestore(&observed.lock, flags);
67 	return READ_ONCE(observed.available);
70 /* Reset observed.available, so that the test can trigger another report. */
75 	spin_lock_irqsave(&observed.lock, flags);
76 	WRITE_ONCE(observed.available, false);
77 	observed.ignore = false;
78 	spin_unlock_irqrestore(&observed.lock, flags);
91 /* Check observed report matches information in @r. */
94 	typeof(observed.header) expected_header;
118 	spin_lock_irqsave(&observed.lock, flags);
122 	/* Finally match expected output to what we actually observed. */
123 	ret = strstr(observed.header, expected_header);
125 	spin_unlock_irqrestore(&observed.lock, flags);
649 	spin_lock_irqsave(&observed.lock, flags);
650 	observed.header[0] = '\0';
651 	observed.ignore = false;
652 	observed.available = false;
653 	spin_unlock_irqrestore(&observed.lock, flags);