[PATCH 5.2 046/135] xen/pciback: remove set but not used variable 'old_state'

[Sasha Levin]

From: YueHaibing <yuehaib...@huawei.com>

[ Upstream commit 09e088a4903bd0dd911b4f1732b250130cdaffed ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/xen/xen-pciback/conf_space_capability.c: In function pm_ctrl_write:
drivers/xen/xen-pciback/conf_space_capability.c:119:25: warning:
 variable old_state set but not used [-Wunused-but-set-variable]

It is never used so can be removed.

Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: YueHaibing <yuehaib...@huawei.com>
Reviewed-by: Boris Ostrovsky <boris.ostrov...@oracle.com>
Signed-off-by: Juergen Gross <jgr...@suse.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/xen/xen-pciback/conf_space_capability.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/xen/xen-pciback/conf_space_capability.c 
b/drivers/xen/xen-pciback/conf_space_capability.c
index 73427d8e01161..e5694133ebe57 100644
--- a/drivers/xen/xen-pciback/conf_space_capability.c
+++ b/drivers/xen/xen-pciback/conf_space_capability.c
@@ -116,13 +116,12 @@ static int pm_ctrl_write(struct pci_dev *dev, int offset, 
u16 new_value,
 {
        int err;
        u16 old_value;
-       pci_power_t new_state, old_state;
+       pci_power_t new_state;
 
        err = pci_read_config_word(dev, offset, &old_value);
        if (err)
                goto out;
 
-       old_state = (pci_power_t)(old_value & PCI_PM_CTRL_STATE_MASK);
        new_state = (pci_power_t)(new_value & PCI_PM_CTRL_STATE_MASK);
 
        new_value &= PM_OK_BITS;
-- 
2.20.1