s390/traps: Fix test_monitor_call() inline assembly
The test_monitor_call() inline assembly uses the xgr instruction, which
also modifies the condition code, to clear a register. However the clobber
list of the inline assembly does not specify that the condition code is
modified, which may lead to incorrect code generation.
Use the lhi instruction instead to clear the register without that the
condition code is modified. Furthermore this limits clearing to the lower
32 bits of val, since its type is int.
Fixes: 17248ea03674 ("s390: fix __EMIT_BUG() macro")
Cc: [email protected]
Reviewed-by: Juergen Christ <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
1 file changed
