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host-libusb: Remove unused variable 

Variable unconnected used in usb_host_auto_check function is only incremented
but never read as line where it is read was disabled since introducing the code.
This causes 'Unused but set variable' warning on Clang 15.0.1 compiler.

Removing the variable and disabled code to prevent the warning.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <00df0db69ff9167d38bac81f6d03281955bd861a.1668009030.git.mrezanin@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
master
Miroslav Rezanina 2022-11-09 10:57:14 -05:00 committed by Thomas Huth
parent 0f48c47c67
commit 5ab8ba977d
1 changed files with 0 additions and 15 deletions
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15
hw/usb/host-libusb.c
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@ -1837,7 +1837,6 @@ static void usb_host_auto_check(void *unused)
struct USBAutoFilter *f;
libusb_device **devs = NULL;
struct libusb_device_descriptor ddesc;
int unconnected = 0;
int i, n;
if (usb_host_init() != 0) {
@ -1897,9 +1896,6 @@ static void usb_host_auto_check(void *unused)
libusb_free_device_list(devs, 1);
QTAILQ_FOREACH(s, &hostdevs, next) {
if (s->dh == NULL) {
unconnected++;
}
if (s->seen == 0) {
if (s->dh) {
usb_host_close(s);
@ -1908,17 +1904,6 @@ static void usb_host_auto_check(void *unused)
}
s->seen = 0;
}
#if 0
if (unconnected == 0) {
/* nothing to watch */
if (usb_auto_timer) {
timer_del(usb_auto_timer);
trace_usb_host_auto_scan_disabled();
}
return;
}
#endif
}
if (!usb_vmstate) {