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[S390] Remove initial kernel stack backchain initialization.
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Thu, 25 Dec 2008 12:39:21 +0000 (13:39 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Thu, 25 Dec 2008 12:39:13 +0000 (13:39 +0100)
Early init code clears the backchain of the initial kernel stack frame.
This is not necessary since it is pre initialized with zeros. Plus it
was broken on 64 bit since it cleared only four of eight bytes.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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