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xen/pciback: remove set but not used variable 'old_state'

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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 <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
YueHaibing 2019-07-24 22:08:50 +08:00 committed by Juergen Gross
parent a1078e821b
commit 09e088a490
1 changed files with 1 additions and 2 deletions
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3
drivers/xen/xen-pciback/conf_space_capability.c
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@ -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;