s390: always clear kernel stack backchain before calling functions

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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>

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Heiko Carstens 2020-12-04 17:56:57 +01:00

parent 586592478b

commit 9365965db0

1 changed files with 6 additions and 6 deletions

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arch/s390/kernel/entry.S

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