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Commit 736ca61f authored by Pekka Paalanen's avatar Pekka Paalanen Committed by Thomas Gleixner
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x86 mmiotrace: Do not print bogus pid 



Non-zero pid indicates the MMIO access originated in user space.
We do not catch that kind of accesses yet, so always print zero for now.

Signed-off-by: default avatarPekka Paalanen <pq@iki.fi>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent e4b37ee6

kernel/trace/trace_mmiotrace.c

+3 −3
Original line number Diff line number Diff line
@@ -117,20 +117,20 @@ static int mmio_print_rw(struct trace_iterator *iter) 
		ret = trace_seq_printf(s,

			"R %d %lu.%06lu %d 0x%lx 0x%lx 0x%lx %d\n",

			rw->width, secs, usec_rem, rw->map_id, rw->phys,

			rw->value, rw->pc, entry->pid);

			rw->value, rw->pc, 0);

		break;

	case MMIO_WRITE:

		ret = trace_seq_printf(s,

			"W %d %lu.%06lu %d 0x%lx 0x%lx 0x%lx %d\n",

			rw->width, secs, usec_rem, rw->map_id, rw->phys,

			rw->value, rw->pc, entry->pid);

			rw->value, rw->pc, 0);

		break;

	case MMIO_UNKNOWN_OP:

		ret = trace_seq_printf(s,

			"UNKNOWN %lu.%06lu %d 0x%lx %02x,%02x,%02x 0x%lx %d\n",

			secs, usec_rem, rw->map_id, rw->phys,

			(rw->value >> 16) & 0xff, (rw->value >> 8) & 0xff,

			(rw->value >> 0) & 0xff, rw->pc, entry->pid);

			(rw->value >> 0) & 0xff, rw->pc, 0);

		break;

	default:

		ret = trace_seq_printf(s, "rw what?\n");