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-rw-r--r--arch/ppc/kernel/ppc_ksyms.c1
-rw-r--r--arch/ppc/lib/string.S14
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index 2ba659f401be..d9036ef0b658 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -88,6 +88,7 @@ EXPORT_SYMBOL(strncpy);
EXPORT_SYMBOL(strcat);
EXPORT_SYMBOL(strlen);
EXPORT_SYMBOL(strcmp);
+EXPORT_SYMBOL(strncmp);
EXPORT_SYMBOL(csum_partial);
EXPORT_SYMBOL(csum_partial_copy_generic);
diff --git a/arch/ppc/lib/string.S b/arch/ppc/lib/string.S
index 84ed33ab4c2d..927253bfc826 100644
--- a/arch/ppc/lib/string.S
+++ b/arch/ppc/lib/string.S
@@ -121,6 +121,20 @@ _GLOBAL(strcmp)
beq 1b
blr
+_GLOBAL(strncmp)
+ PPC_LCMPI r5,0
+ beqlr
+ mtctr r5
+ addi r5,r3,-1
+ addi r4,r4,-1
+1: lbzu r3,1(r5)
+ cmpwi 1,r3,0
+ lbzu r0,1(r4)
+ subf. r3,r0,r3
+ beqlr 1
+ bdnzt eq,1b
+ blr
+
_GLOBAL(strlen)
addi r4,r3,-1
1: lbzu r0,1(r4)