Heiko Carstens 13f9eec229 s390: always clear kernel stack backchain before calling functions
[ Upstream commit 9365965db0c7ca7fc81eee27c21d8522d7102c32 ]

Clear the kernel stack backchain before potentially calling the
lockdep trace_hardirqs_off/on functions. Without this walking the
kernel backchain, e.g. during a panic, might stop too early.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-06 14:56:55 +01:00
..
2020-10-23 10:06:38 -07:00
2020-10-23 10:06:38 -07:00