X-Git-Url: https://repo.jachan.dev/linux.git/blobdiff_plain/e4f3b1e74b67fdcdd3034b84997fad7912f182f6..3c92ec8ae91ecf59d88c798301833d7cf83f2179:/lib/hexdump.c

diff --git a/lib/hexdump.c b/lib/hexdump.c
index bd5edaeaa80b..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';
 }