s390/setup: rearrange absolute lowcore initialization

Make the absolute lowcore assignments immediately follow
the boot CPU lowcore same member assignments. This way
readability improves when reading from up to down, with
no out of order mcck stack allocation in-between.

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

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 792ba69032d547ac25ed8c5b9d29179478d6afee..8f483132901ede0e77190366635bf70d602a11b6 100644 (file)
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -474,19 +474,18 @@ static void __init setup_lowcore_dat_off(void)
        lc->restart_data = 0;
        lc->restart_source = -1U;
 
-       mcck_stack = (unsigned long)memblock_alloc(THREAD_SIZE, THREAD_SIZE);
-       if (!mcck_stack)
-               panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
-                     __func__, THREAD_SIZE, THREAD_SIZE);
-       lc->mcck_stack = mcck_stack + STACK_INIT_OFFSET;
-
-       /* Setup absolute zero lowcore */
        put_abs_lowcore(restart_stack, lc->restart_stack);
        put_abs_lowcore(restart_fn, lc->restart_fn);
        put_abs_lowcore(restart_data, lc->restart_data);
        put_abs_lowcore(restart_source, lc->restart_source);
        put_abs_lowcore(restart_psw, lc->restart_psw);
 
+       mcck_stack = (unsigned long)memblock_alloc(THREAD_SIZE, THREAD_SIZE);
+       if (!mcck_stack)
+               panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+                     __func__, THREAD_SIZE, THREAD_SIZE);
+       lc->mcck_stack = mcck_stack + STACK_INIT_OFFSET;
+
        lc->spinlock_lockval = arch_spin_lockval(0);
        lc->spinlock_index = 0;
        arch_spin_lock_setup(0);