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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>
This commit is contained in:
Gustavo A. R. Silva 2018-08-16 09:01:41 -05:00 committed by Daniel Thompson
parent c2b94c72d9
commit 9eb62f0e1b
1 changed files with 3 additions and 18 deletions
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21
kernel/debug/kdb/kdb_main.c
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@ -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
}
}