[S] Change in coreboot[master]: nb/intel/haswell/pcie.c: Make UBSAN not complain

[Angel Pons (Code Review)]

Attention is currently required from: Nico Huber, Paul Menzel, Angel Pons, Arthur Heymans.

Hello Felix Singer, build bot (Jenkins), Nico Huber, Paul Menzel, Arthur Heymans,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/72806

to look at the new patch set (#4).

Change subject: nb/intel/haswell/pcie.c: Make UBSAN not complain
......................................................................

nb/intel/haswell/pcie.c: Make UBSAN not complain

UBSAN complains about "shift out of bounds", likely because integer
literals are signed by default and the result of the operation will
shift into the sign bit, yielding a negative value. However, as the
negative value is then casted to an unsigned type, it works anyway.
To make UBSAN happy, make sure the two troublesome integer literals
are unsigned so that there's no sign bit to shift into.

Tested on out-of-tree Asrock Z97 Extreme6, UBSAN now dies elsewhere.

Link: https://ticket.coreboot.org/issues/449

Change-Id: Iaf8710a5ae4e05d9f41f40f9e3617e155027800c
Signed-off-by: Angel Pons 
---
M src/northbridge/intel/haswell/pcie.c
1 file changed, 23 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/06/72806/4