X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=lib%2Fhexdump.c;h=f07c0db81d262eb8ff185391bf6577adae064e1f;hb=384c89e2e4cb5879b86a38414d1b3bb2b23ec8ee;hp=473f5aed6caeebe88e813429a6e690e3c4ba42c9;hpb=99e1221d1a1edac316f7f8116c781f75733b1159;p=linux-2.6-block.git

diff --git a/lib/hexdump.c b/lib/hexdump.c
index 473f5aed6cae..f07c0db81d26 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -12,6 +12,9 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 
+const char hex_asc[] = "0123456789abcdef";
+EXPORT_SYMBOL(hex_asc);
+
 /**
  * hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory
  * @buf: data blob to dump
@@ -93,8 +96,8 @@ void hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
 		for (j = 0; (j < rowsize) && (j < len) && (lx + 4) < linebuflen;
 		     j++) {
 			ch = ptr[j];
-			linebuf[lx++] = hex_asc(ch >> 4);
-			linebuf[lx++] = hex_asc(ch & 0x0f);
+			linebuf[lx++] = hex_asc_hi(ch);
+			linebuf[lx++] = hex_asc_lo(ch);
 			linebuf[lx++] = ' ';
 		}
 		ascii_column = 3 * rowsize + 2;
@@ -106,7 +109,8 @@ void hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
 	while (lx < (linebuflen - 1) && lx < (ascii_column - 1))
 		linebuf[lx++] = ' ';
 	for (j = 0; (j < rowsize) && (j < len) && (lx + 2) < linebuflen; j++)
-		linebuf[lx++] = isprint(ptr[j]) ? ptr[j] : '.';
+		linebuf[lx++] = (isascii(ptr[j]) && isprint(ptr[j])) ? ptr[j]
+				: '.';
 nil:
 	linebuf[lx++] = '\0';
 }
@@ -145,9 +149,9 @@ EXPORT_SYMBOL(hex_dump_to_buffer);
  */
 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];
 
@@ -189,7 +193,7 @@ EXPORT_SYMBOL(print_hex_dump);
  * rowsize of 16, groupsize of 1, and ASCII output included.
  */
 void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
-			void *buf, size_t len)
+			const void *buf, size_t len)
 {
 	print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, 16, 1,
 			buf, len, 1);