lib: make table_compute_checksum() arguments const

table_compute_checksum() does neither changes the content of the
checksummed buffer nor the buffer length. Adding const to the
definition makes the function wider usable.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

diff --git a/include/tables_csum.h b/include/tables_csum.h
index 4812333093a1e90dd306f29f73790b3a9eaea9a1..9207e85f91bf00f7fdbf0c6f400e6c036af31a66 100644 (file)
--- a/include/tables_csum.h
+++ b/include/tables_csum.h
@@ -17,6 +17,6 @@
  * @len:       configuration table size
  * @return:    the 8-bit checksum
  */
-u8 table_compute_checksum(void *v, int len);
+u8 table_compute_checksum(const void *v, const int len);
 
 #endif

diff --git a/lib/tables_csum.c b/lib/tables_csum.c
index 636aa596768178df8a7ae173faed396c45e98501..305b1ec31c5488a7417ff6d8ceedac06d6e5e35d 100644 (file)
--- a/lib/tables_csum.c
+++ b/lib/tables_csum.c
@@ -5,9 +5,9 @@
 
 #include <linux/types.h>
 
-u8 table_compute_checksum(void *v, int len)
+u8 table_compute_checksum(const void *v, const int len)
 {
-       u8 *bytes = v;
+       const u8 *bytes = v;
        u8 checksum = 0;
        int i;