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-rw-r--r--arch/s390/kernel/early_printk.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/early_printk.c b/arch/s390/kernel/early_printk.c
index 40c1dfec944e..6f24d83bc5dc 100644
--- a/arch/s390/kernel/early_printk.c
+++ b/arch/s390/kernel/early_printk.c
@@ -25,7 +25,7 @@ static int __init setup_early_printk(char *buf)
if (early_console)
return 0;
/* Accept only "earlyprintk" and "earlyprintk=sclp" */
- if (buf && strncmp(buf, "sclp", 4))
+ if (buf && !str_has_prefix(buf, "sclp"))
return 0;
if (!sclp.has_linemode && !sclp.has_vt220)
return 0;