s390/alternatives: Convert runtime sanity check into compile time check

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__apply_alternatives() contains a runtime check which verifies that the
size of the to be patched code area is even. Convert this to a compile time
check using a similar ".org" trick, which is already used to verify that
old and new code areas have the same size.

Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

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Heiko Carstens 2024-05-13 12:16:20 +02:00 • committed by Alexander Gordeev

parent effb835726

commit 207ddb9189

3 changed files with 2 additions and 7 deletions

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1

arch/s390/include/asm/alternative-asm.h

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1

arch/s390/include/asm/alternative.h

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7

arch/s390/kernel/alternative.c

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