Typo in subject: "unsed". The warning is spelled
"unused-but-set-variable", the option "-Wunused-but-set-variable".
Raghavendra D Prabhu <raghu.prabhu13@xxxxxxxxx> writes:
> In a few cases, variable attributed 'unused' has been added, in other cases
> unused variable has been either removed or commented out.
>
> Signed-off-by: Raghavendra D Prabhu <rprabhu@xxxxxxxxxxx>
> ---
> hw/device-assignment.c | 6 +++---
> simpletrace.c | 2 +-
> xen-mapcache.c | 7 ++-----
> 3 files changed, 6 insertions(+), 9 deletions(-)
>
> diff --git a/hw/device-assignment.c b/hw/device-assignment.c
> index 36ad6b0..19a59b4 100644
> --- a/hw/device-assignment.c
> +++ b/hw/device-assignment.c
> @@ -1654,7 +1654,7 @@ static void reset_assigned_device(DeviceState *dev)
> AssignedDevice *adev = DO_UPCAST(AssignedDevice, dev, pci_dev);
> char reset_file[64];
> const char reset[] = "1";
> - int fd, ret;
> + int fd, __attribute__((unused)) ret;
>
> snprintf(reset_file, sizeof(reset_file),
> "/sys/bus/pci/devices/%04x:%02x:%02x.%01x/reset",
What about (void)write() and do away with ret?
> @@ -1682,7 +1682,7 @@ static void reset_assigned_device(DeviceState *dev)
> static int assigned_initfn(struct PCIDevice *pci_dev)
> {
> AssignedDevice *dev = DO_UPCAST(AssignedDevice, dev, pci_dev);
> - uint8_t e_device, e_intx;
> + uint8_t e_intx;
> int r;
>
> if (!kvm_enabled()) {
> @@ -1709,7 +1709,7 @@ static int assigned_initfn(struct PCIDevice *pci_dev)
> goto out;
>
> /* handle interrupt routing */
> - e_device = (dev->dev.devfn >> 3) & 0x1f;
> + /*e_device = (dev->dev.devfn >> 3) & 0x1f;*/
> e_intx = dev->dev.config[0x3d] - 1;
> dev->intpin = e_intx;
> dev->run = 0;
> diff --git a/simpletrace.c b/simpletrace.c
> index f1dbb5e..2ce9cff 100644
> --- a/simpletrace.c
> +++ b/simpletrace.c
> @@ -119,7 +119,7 @@ static void *writeout_thread(void *opaque)
> TraceRecord record;
> unsigned int writeout_idx = 0;
> unsigned int num_available, idx;
> - size_t unused;
> + size_t __attribute__((unused)) unused;
>
> for (;;) {
> wait_for_trace_records_available();
Same here.
[...]
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