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authorHeiko Carstens <hca@linux.ibm.com>2021-07-21 13:25:21 +0200
committerHeiko Carstens <hca@linux.ibm.com>2021-07-27 09:39:20 +0200
commit873129ca7b56c7b28dcf712b3bd50c08dc36b910 (patch)
tree4f4e28c67bde399ad3e6b7dea1e0dba7a9e22a8a /arch
parentf17a6d5d83bc05908e5c3fc1c24787aa354653df (diff)
s390/hwcaps: split setup_hwcaps()
setup_hwcaps() is a quite large function. Make it smaller by moving the elf platform setup code into an independent setup function. Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/kernel/processor.c24
1 files changed, 15 insertions, 9 deletions
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index b5569a67ee1d..7517e430b9e8 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -183,7 +183,6 @@ static void show_cpu_summary(struct seq_file *m, void *v)
static int __init setup_hwcaps(void)
{
static const int stfl_bits[6] = { 0, 2, 7, 17, 19, 21 };
- struct cpuid cpu_id;
int i;
/*
@@ -278,6 +277,20 @@ static int __init setup_hwcaps(void)
if (MACHINE_HAS_PCI_MIO)
elf_hwcap |= HWCAP_PCI_MIO;
+ /*
+ * Virtualization support HWCAP_INT_SIE is bit 0.
+ */
+ if (sclp.has_sief2)
+ int_hwcap |= HWCAP_INT_SIE;
+
+ return 0;
+}
+arch_initcall(setup_hwcaps);
+
+static int __init setup_elf_platform(void)
+{
+ struct cpuid cpu_id;
+
get_cpu_id(&cpu_id);
add_device_randomness(&cpu_id, sizeof(cpu_id));
switch (cpu_id.machine) {
@@ -319,16 +332,9 @@ static int __init setup_hwcaps(void)
strcpy(elf_platform, "z15");
break;
}
-
- /*
- * Virtualization support HWCAP_INT_SIE is bit 0.
- */
- if (sclp.has_sief2)
- int_hwcap |= HWCAP_INT_SIE;
-
return 0;
}
-arch_initcall(setup_hwcaps);
+arch_initcall(setup_elf_platform);
static void show_cpu_topology(struct seq_file *m, unsigned long n)
{