[PATCH 12/24] S390/sysinfo: use uuid_is_null instead of opencoding it

[Christoph Hellwig]

And switch to use uuid_t instead of the old uuid_be type.

Signed-off-by: Christoph Hellwig <h...@lst.de>
Reviewed-by: Amir Goldstein <amir7...@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
---
 arch/s390/include/asm/sysinfo.h | 4 ++--
 arch/s390/kernel/sysinfo.c      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index e784bed6ed7f..2b498e58b914 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -109,7 +109,7 @@ struct sysinfo_2_2_2 {
        unsigned short cpus_shared;
        char reserved_4[3];
        unsigned char vsne;
-       uuid_be uuid;
+       uuid_t uuid;
        char reserved_5[160];
        char ext_name[256];
 };
@@ -134,7 +134,7 @@ struct sysinfo_3_2_2 {
                char reserved_1[3];
                unsigned char evmne;
                unsigned int reserved_2;
-               uuid_be uuid;
+               uuid_t uuid;
        } vm[8];
        char reserved_3[1504];
        char ext_names[8][256];
diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c
index eefcb54872a5..fb869b103825 100644
--- a/arch/s390/kernel/sysinfo.c
+++ b/arch/s390/kernel/sysinfo.c
@@ -242,7 +242,7 @@ static void print_ext_name(struct seq_file *m, int lvl,
 
 static void print_uuid(struct seq_file *m, int i, struct sysinfo_3_2_2 *info)
 {
-       if (!memcmp(&info->vm[i].uuid, &NULL_UUID_BE, sizeof(uuid_be)))
+       if (uuid_is_null(&info->vm[i].uuid))
                return;
        seq_printf(m, "VM%02d UUID:            %pUb\n", i, &info->vm[i].uuid);
 }
-- 
2.11.0