[PATCH] s390/kvm: avoid hypfs error message

Juergen Gross
2022-06-07T12:33:22Z

When booting under KVM the following error messages are issued:

hypfs.7f5705: The hardware system does not support hypfs
hypfs.7a79f0: Initialization of hypfs failed with rc=-61

While being documented, they can easily be avoided by bailing out of
hypfs_init() early in case of running as a KVM guest.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
arch/s390/hypfs/inode.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 5c97f48cea91..bdf078f3c641 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -464,6 +464,9 @@ static int __init hypfs_init(void)
{
int rc;

+ if (MACHINE_IS_KVM)
+ return -ENODATA;
+
hypfs_dbfs_init();

if (hypfs_diag_init()) {
--
2.35.3