[PATCH v4 2/2] PCI: dwc: Cleanup in dw_pcie_ep_raise_msi_irq()

From: Dan Carpenter
Date: Wed Jan 24 2024 - 10:19:46 EST


I recently changed the alignment code in dw_pcie_ep_raise_msix_irq().
The code in dw_pcie_ep_raise_msi_irq() is similar so update it to match
as well, just for consistency. (No effect on runtime, just a cleanup).

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
v4: style improvements
v3: use ALIGN_DOWN()
v2: new patch

drivers/pci/controller/dwc/pcie-designware-ep.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index 51679c6702cf..d2de41f02a77 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -482,9 +482,10 @@ int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
reg = ep_func->msi_cap + PCI_MSI_DATA_32;
msg_data = dw_pcie_ep_readw_dbi(ep, func_no, reg);
}
- aligned_offset = msg_addr_lower & (epc->mem->window.page_size - 1);
- msg_addr = ((u64)msg_addr_upper) << 32 |
- (msg_addr_lower & ~aligned_offset);
+ msg_addr = ((u64)msg_addr_upper) << 32 | msg_addr_lower;
+
+ aligned_offset = msg_addr & (epc->mem->window.page_size - 1);
+ msg_addr = ALIGN_DOWN(msg_addr, epc->mem->window.page_size);
ret = dw_pcie_ep_map_addr(epc, func_no, 0, ep->msi_mem_phys, msg_addr,
epc->mem->window.page_size);
if (ret)
--
2.43.0