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PCI: dwc: Replace bit rotation operation (1 << bit) with BIT(bit) 

Replace bit rotation operation (1 << bit) with BIT(bit), which
simplifies code reading.

No functional change is intended.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
This commit is contained in:
Gustavo Pimentel 2019-01-31 19:17:07 +01:00 committed by Lorenzo Pieralisi
parent a348d015f0
commit 657722570a
1 changed files with 3 additions and 3 deletions
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6
drivers/pci/controller/dwc/pcie-designware-host.c
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@ -164,7 +164,7 @@ static void dw_pci_bottom_mask(struct irq_data *d)
res = ctrl * MSI_REG_CTRL_BLOCK_SIZE;
bit = d->hwirq % MAX_MSI_IRQS_PER_CTRL;
pp->irq_mask[ctrl] |= (1 << bit);
pp->irq_mask[ctrl] |= BIT(bit);
dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_MASK + res, 4,
pp->irq_mask[ctrl]);
}
@ -187,7 +187,7 @@ static void dw_pci_bottom_unmask(struct irq_data *d)
res = ctrl * MSI_REG_CTRL_BLOCK_SIZE;
bit = d->hwirq % MAX_MSI_IRQS_PER_CTRL;
pp->irq_mask[ctrl] &= ~(1 << bit);
pp->irq_mask[ctrl] &= ~BIT(bit);
dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_MASK + res, 4,
pp->irq_mask[ctrl]);
}
@ -207,7 +207,7 @@ static void dw_pci_bottom_ack(struct irq_data *d)
raw_spin_lock_irqsave(&pp->lock, flags);
dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_STATUS + res, 4, 1 << bit);
dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_STATUS + res, 4, BIT(bit));
if (pp->ops->msi_irq_ack)
pp->ops->msi_irq_ack(d->hwirq, pp);