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Message-ID: <184097e0-c728-42c7-9e8a-556bd33fb612@moroto.mountain>
Date: Fri, 26 Jan 2024 11:41:01 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Jingoo Han <jingoohan1@...il.com>
Cc: Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof Wilczyński <kw@...ux.com>,
Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
kernel-janitors@...r.kernel.org
Subject: [PATCH v5 2/2] PCI: dwc: Cleanup in dw_pcie_ep_raise_msi_irq()
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@...aro.org>
Reviewed-by: Niklas Cassel <cassel@...nel.org>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
v5: no change to this one
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 d6b66597101e..9a437cfce073 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -483,9 +483,10 @@ 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
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