kdb: kdb_main: refactor code in kdb_md_line

Replace the whole switch statement with a for loop.  This makes the
code clearer and easy to read.

This also addresses the following Coverity warnings:

Addresses-Coverity-ID: 115090 ("Missing break in switch")
Addresses-Coverity-ID: 115091 ("Missing break in switch")
Addresses-Coverity-ID: 114700 ("Missing break in switch")

Suggested-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
[daniel.thompson@linaro.org: Tiny grammar change in description]
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>

diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 9592420..d72b32c 100644 (file)
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -1493,6 +1493,7 @@ static void kdb_md_line(const char *fmtstr, unsigned long addr,
        char cbuf[32];
        char *c = cbuf;
        int i;
+       int j;
        unsigned long word;
 
        memset(cbuf, '\0', sizeof(cbuf));
@@ -1538,25 +1539,9 @@ static void kdb_md_line(const char *fmtstr, unsigned long addr,
                        wc.word = word;
 #define printable_char(c) \
        ({unsigned char __c = c; isascii(__c) && isprint(__c) ? __c : '.'; })
-                       switch (bytesperword) {
-                       case 8:
+                       for (j = 0; j < bytesperword; j++)
                                *c++ = printable_char(*cp++);
-                               *c++ = printable_char(*cp++);
-                               *c++ = printable_char(*cp++);
-                               *c++ = printable_char(*cp++);
-                               addr += 4;
-                       case 4:
-                               *c++ = printable_char(*cp++);
-                               *c++ = printable_char(*cp++);
-                               addr += 2;
-                       case 2:
-                               *c++ = printable_char(*cp++);
-                               addr++;
-                       case 1:
-                               *c++ = printable_char(*cp++);
-                               addr++;
-                               break;
-                       }
+                       addr += bytesperword;
 #undef printable_char
                }
        }