linux-kernel - [PATCH v3 2/2] PCI: dwc: Cleanup in dw_pcie_ep_raise_msi

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Date: Mon, 22 Jan 2024 18:21:00 +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 v3 2/2] PCI: dwc: Cleanup in dw_pcie_ep_raise_msi_irq()

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

Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
v2: Add this patch
v3: Use ALIGN_DOWN() as a style improvement

 drivers/pci/controller/dwc/pcie-designware-ep.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index 51679c6702cf..1c8d2e938851 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -483,8 +483,8 @@ int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
 		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;
+	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