Merge remote-tracking branch 'msm8998/lineage-20'master

1 files changed, 20 insertions, 0 deletions

diff --git a/lib/string_helpers.c b/lib/string_helpers.c
index 5c88204b6f1f..f46075b3d9e4 100644
--- a/lib/string_helpers.c
+++ b/lib/string_helpers.c
@@ -534,3 +534,23 @@ int string_escape_mem(const char *src, size_t isz, char *dst, size_t osz,
 	return p - dst;
 }
 EXPORT_SYMBOL(string_escape_mem);
+
+/**
+ * memcpy_and_pad - Copy one buffer to another with padding
+ * @dest: Where to copy to
+ * @dest_len: The destination buffer size
+ * @src: Where to copy from
+ * @count: The number of bytes to copy
+ * @pad: Character to use for padding if space is left in destination.
+ */
+void memcpy_and_pad(void *dest, size_t dest_len, const void *src, size_t count,
+		    int pad)
+{
+	if (dest_len > count) {
+		memcpy(dest, src, count);
+		memset(dest + count, pad,  dest_len - count);
+	} else {
+		memcpy(dest, src, dest_len);
+	}
+}
+EXPORT_SYMBOL(memcpy_and_pad);