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11:48:10 +0000 X-SNPS-Relay: synopsys.com From: Gustavo Pimentel To: Jisheng Zhang , Kishon Vijay Abraham I , Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Jingoo Han , Kukjin Kim , Krzysztof Kozlowski , Richard Zhu , Lucas Stach , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Yue Wang , Kevin Hilman , Neil Armstrong , Jerome Brunet , Martin Blumenstingl , Jesper Nilsson , Xiaowei Song , Binghui Wang , Andy Gross , Bjorn Andersson , Stanimir Varbanov , Pratyush Anand , Thierry Reding , Jonathan Hunter , Kunihiko Hayashi , Masahiro Yamada Subject: RE: [PATCH v2 1/5] PCI: dwc: Call dma_unmap_page() before freeing the msi page Thread-Topic: [PATCH v2 1/5] PCI: dwc: Call dma_unmap_page() before freeing the msi page Thread-Index: AQHWkmNBS1PoQM0etkyQ8pvAuKHpYKl3rEpQ Date: Thu, 24 Sep 2020 11:48:09 +0000 Message-ID: References: <20200924190421.549cb8fc@xhacker.debian> <20200924190557.48fddba5@xhacker.debian> In-Reply-To: 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"linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On Thu, Sep 24, 2020 at 12:5:57, Jisheng Zhang wrote: > In dw_pcie_free_msi(), call dma_unmap_page() before freeing. > > Signed-off-by: Jisheng Zhang > --- > drivers/pci/controller/dwc/pcie-designware-host.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c > index 9dafecba347f..0a19de946351 100644 > --- a/drivers/pci/controller/dwc/pcie-designware-host.c > +++ b/drivers/pci/controller/dwc/pcie-designware-host.c > @@ -288,8 +288,12 @@ void dw_pcie_free_msi(struct pcie_port *pp) > irq_domain_remove(pp->msi_domain); > irq_domain_remove(pp->irq_domain); > > - if (pp->msi_page) > + if (pp->msi_page) { > + struct dw_pcie *pci = to_dw_pcie_from_pp(pp); > + struct device *dev = pci->dev; > + dma_unmap_page(dev, pp->msi_data, PAGE_SIZE, DMA_FROM_DEVICE); > __free_page(pp->msi_page); > + } > } > > void dw_pcie_msi_init(struct pcie_port *pp) > -- > 2.28.0 Acked-by: Gustavo Pimentel _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic