Change in coreboot[master]: lib/thread: Start stopwatch after printk

[Raul Rangel (Code Review)]

Raul Rangel has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/58960 )

Change subject: lib/thread: Start stopwatch after printk
......................................................................

lib/thread: Start stopwatch after printk

We are currently counting how long it takes to print the waiting
message, in addition to the actual time we spent waiting. This results
in inflating the measurement by 1.7ms when the serial console is
enabled. This CL makes it so the print happens before the stopwatch
starts.

BUG=b:179699789
TEST=No longer see printk time taken into account on serial console

Signed-off-by: Raul E Rangel 
Change-Id: Ib48e37c1b2cb462d634141bf767673936aa2dd26
---
M src/lib/thread.c
1 file changed, 2 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/60/58960/1

diff --git a/src/lib/thread.c b/src/lib/thread.c
index 7d5cdc5..0393ca7 100644
--- a/src/lib/thread.c
+++ b/src/lib/thread.c
@@ -398,10 +398,10 @@
    if (handle->state == THREAD_UNINITIALIZED)
    	return CB_ERR_ARG;

-	stopwatch_init(&sw);
-
    printk(BIOS_SPEW, "waiting for thread\n");

+	stopwatch_init(&sw);
+
    while (handle->state != THREAD_DONE)
    	assert(thread_yield() == 0);