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build: avoid 32-bit failure on older gcc

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On 32-bit platforms with old gcc (hello RHEL 5 gcc 4.1.2), the
build fails with:
virsh-domain.c: In function 'cmdBlockCopy':
virsh-domain.c:2172: warning: comparison is always false due to limited range of data type

Adjust the code to silence the warning.

* tools/virsh-domain.c (cmdBlockCopy): Pacify RHEL 5 gcc.

Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Eric Blake 2014-11-20 08:29:23 -07:00
parent 512b8747d8
commit 0d5168392f
1 changed files with 2 additions and 1 deletions
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3
tools/virsh-domain.c
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@ -2169,7 +2169,8 @@ cmdBlockCopy(vshControl *ctl, const vshCmd *cmd)
if (bandwidth) {
/* bandwidth is ulong MiB/s, but the typed parameter is
* ullong bytes/s; make sure we don't overflow */
if (bandwidth + 0ULL > ULLONG_MAX >> 20) {
unsigned long long limit = MIN(ULONG_MAX, ULLONG_MAX >> 20);
if (bandwidth > limit) {
virReportError(VIR_ERR_OVERFLOW,
_("bandwidth must be less than %llu"),
ULLONG_MAX >> 20);