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Diffstat (limited to 'arch/s390/kernel/lgr.c')
-rw-r--r--arch/s390/kernel/lgr.c29
1 files changed, 10 insertions, 19 deletions
diff --git a/arch/s390/kernel/lgr.c b/arch/s390/kernel/lgr.c
index eca94e74d19..6ea6d69339b 100644
--- a/arch/s390/kernel/lgr.c
+++ b/arch/s390/kernel/lgr.c
@@ -51,16 +51,6 @@ static struct lgr_info lgr_info_cur;
static struct debug_info *lgr_dbf;
/*
- * Return number of valid stsi levels
- */
-static inline int stsi_0(void)
-{
- int rc = stsi(NULL, 0, 0, 0);
-
- return rc == -ENOSYS ? rc : (((unsigned int) rc) >> 28);
-}
-
-/*
* Copy buffer and then convert it to ASCII
*/
static void cpascii(char *dst, char *src, int size)
@@ -76,7 +66,7 @@ static void lgr_stsi_1_1_1(struct lgr_info *lgr_info)
{
struct sysinfo_1_1_1 *si = (void *) lgr_page;
- if (stsi(si, 1, 1, 1) == -ENOSYS)
+ if (stsi(si, 1, 1, 1))
return;
cpascii(lgr_info->manufacturer, si->manufacturer,
sizeof(si->manufacturer));
@@ -93,7 +83,7 @@ static void lgr_stsi_2_2_2(struct lgr_info *lgr_info)
{
struct sysinfo_2_2_2 *si = (void *) lgr_page;
- if (stsi(si, 2, 2, 2) == -ENOSYS)
+ if (stsi(si, 2, 2, 2))
return;
cpascii(lgr_info->name, si->name, sizeof(si->name));
memcpy(&lgr_info->lpar_number, &si->lpar_number,
@@ -108,7 +98,7 @@ static void lgr_stsi_3_2_2(struct lgr_info *lgr_info)
struct sysinfo_3_2_2 *si = (void *) lgr_page;
int i;
- if (stsi(si, 3, 2, 2) == -ENOSYS)
+ if (stsi(si, 3, 2, 2))
return;
for (i = 0; i < min_t(u8, si->count, VM_LEVEL_MAX); i++) {
cpascii(lgr_info->vm[i].name, si->vm[i].name,
@@ -124,16 +114,17 @@ static void lgr_stsi_3_2_2(struct lgr_info *lgr_info)
*/
static void lgr_info_get(struct lgr_info *lgr_info)
{
+ int level;
+
memset(lgr_info, 0, sizeof(*lgr_info));
stfle(lgr_info->stfle_fac_list, ARRAY_SIZE(lgr_info->stfle_fac_list));
- lgr_info->level = stsi_0();
- if (lgr_info->level == -ENOSYS)
- return;
- if (lgr_info->level >= 1)
+ level = stsi(NULL, 0, 0, 0);
+ lgr_info->level = level;
+ if (level >= 1)
lgr_stsi_1_1_1(lgr_info);
- if (lgr_info->level >= 2)
+ if (level >= 2)
lgr_stsi_2_2_2(lgr_info);
- if (lgr_info->level >= 3)
+ if (level >= 3)
lgr_stsi_3_2_2(lgr_info);
}