hexdump: use const notation
Trivial fix: mark the buffer to hexdump as const so callers could avoid
casting their const buffers when calling print_hex_dump().
The patch is really trivial and I suggest to consider it as a fix
(it fixes GCC warnings) and push it to current tree.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 4300bb4..b4f5b81 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -224,7 +224,7 @@
char *linebuf, size_t linebuflen, bool ascii);
extern void print_hex_dump(const char *level, const char *prefix_str,
int prefix_type, int rowsize, int groupsize,
- void *buf, size_t len, bool ascii);
+ const void *buf, size_t len, bool ascii);
extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
void *buf, size_t len);
#define hex_asc(x) "0123456789abcdef"[x]
diff --git a/lib/hexdump.c b/lib/hexdump.c
index 473f5ae..16f2e29 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -145,9 +145,9 @@
*/
void print_hex_dump(const char *level, const char *prefix_str, int prefix_type,
int rowsize, int groupsize,
- void *buf, size_t len, bool ascii)
+ const void *buf, size_t len, bool ascii)
{
- u8 *ptr = buf;
+ const u8 *ptr = buf;
int i, linelen, remaining = len;
unsigned char linebuf[200];