s390: open code SWITCH_KERNEL macro

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This is a preparation patch for two later bugfixes. In the past both
int_handler and machine check handler used SWITCH_KERNEL to switch to
the kernel stack. However, SWITCH_KERNEL doesn't work properly in machine
check context. So instead of adding more complexity to this macro, just
remove it.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Cc: <stable@kernel.org> # v5.8+
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

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Sven Schnelle 2021-01-28 13:06:05 +01:00 • committed by Vasily Gorbik

parent 1c7673476b

commit b0d31159a4

1 changed files with 46 additions and 28 deletions

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arch/s390/kernel/entry.S

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