Date: Wed, 20 Mar 2013 20:06:03 GMT From: hiren panchasara <hiren.panchasara@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/177155: [patch] Fixing clang warnings at /sys/dev/safe Message-ID: <201303202006.r2KK632x071282@red.freebsd.org> Resent-Message-ID: <201303202010.r2KKA0Xp076617@freefall.freebsd.org>
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>Number: 177155
>Category: kern
>Synopsis: [patch] Fixing clang warnings at /sys/dev/safe
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Mar 20 20:10:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator: hiren panchasara
>Release: current
>Organization:
>Environment:
10.0-CURRENT FreeBSD 10.0-CURRENT #1 r248555: Wed Mar 20 15:00:20 UTC 2013
>Description:
===> safe (all)
/usr/src/sys/modules/safe/../../dev/safe/safe.c:1610:11: warning: comparison of unsigned expression >= 0 is always true [-Wtautological-compare]
while (j >= 0) {
~ ^ ~
/usr/src/sys/modules/safe/../../dev/safe/safe.c:1622:11: warning: comparison of unsigned expression >= 0 is always true [-Wtautological-compare]
while (j >= 0) {
~ ^ ~
2 warnings generated.
Proposed fix is replacing always true condition "j >= 0" with 1. I _hope_ this is the correct way to "fix" this.
>How-To-Repeat:
cd /sys/modules/safe and do "make" to see clang warnings.
>Fix:
Index: safe.c
===================================================================
--- safe.c (revision 248555)
+++ safe.c (working copy)
@@ -1607,7 +1607,7 @@
* Advance src and dst to offset.
*/
j = offset;
- while (j >= 0) {
+ while (1) {
if (srcm->m_len > j)
break;
j -= srcm->m_len;
@@ -1619,7 +1619,7 @@
slen = srcm->m_len - j;
j = offset;
- while (j >= 0) {
+ while (1) {
if (dstm->m_len > j)
break;
j -= dstm->m_len;
>Release-Note:
>Audit-Trail:
>Unformatted:
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