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From: Bjorn Helgaas <helgaas@kernel.org>
To: "Z.q. Hou" <zhiqiang.hou@nxp.com>
Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"bhelgaas@google.com" <bhelgaas@google.com>,
	"lorenzo.pieralisi@arm.com" <lorenzo.pieralisi@arm.com>,
	Roy Zang <roy.zang@nxp.com>, "M.h. Lian" <minghuan.lian@nxp.com>
Subject: Re: [PATCH] PCI/Layerscape: fix wrongly invoking of outbound window disable accessor
Date: Thu, 25 Oct 2018 08:45:22 -0500	[thread overview]
Message-ID: <20181025134522.GE214775@bhelgaas-glaptop.roam.corp.google.com> (raw)
In-Reply-To: <20181025085323.8819-1-Zhiqiang.Hou@nxp.com>

  $ git log --oneline --follow drivers/pci/controller/dwc/pci-layerscape.c | head
  6e0832fa432e PCI: Collect all native drivers under drivers/pci/controller/
  3f43ccc4ea1b PCI: dwc: Remove old MSI IRQs API
  8cfab3cf63cf PCI: Add SPDX GPL-2.0 to replace GPL v2 boilerplate
  84d897d69938 PCI: layerscape: Change default error response behavior
  a335b122ba27 PCI: layerscape: Add support for ls1012a
  03fc6134c260 PCI: layerscape: Add support for ls1088a
  8f89357094e6 PCI: layerscape: Add support for ls2088a
  c3f909398827 PCI: layerscape: Remove unnecessary class code fixup
  e44abfed6fcb PCI: dwc: Add accessors for write permission of DBI read-only registers
  4a2745d760fa PCI: layerscape: Disable outbound windows configured by bootloader

Make yours match, e.g., "PCI: layerscape: Call dw_pcie_disable_atu()
correctly"

On Thu, Oct 25, 2018 at 08:53:37AM +0000, Z.q. Hou wrote:
> From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
> 
> This issue is introduced by commit 4a2745d760fac ("PCI: layerscape: Disable
> outbound windows configured by bootloader").

Conventional commit reference:

  $ git --no-pager show -s --abbrev-commit --abbrev=12 --pretty=format:"%h (\"%s\")%n" 4a2745d760fac
  4a2745d760fa ("PCI: layerscape: Disable outbound windows configured by bootloader")

Holy cow, this has been broken since v4.14.  If fixing this makes a
difference, you might want to tag it for stable.

> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
> ---
>  drivers/pci/controller/dwc/pci-layerscape.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/controller/dwc/pci-layerscape.c b/drivers/pci/controller/dwc/pci-layerscape.c
> index 69f3f1a5a782..b2085988dbee 100644
> --- a/drivers/pci/controller/dwc/pci-layerscape.c
> +++ b/drivers/pci/controller/dwc/pci-layerscape.c
> @@ -88,7 +88,7 @@ static void ls_pcie_disable_outbound_atus(struct ls_pcie *pcie)
>  	int i;
>  
>  	for (i = 0; i < PCIE_IATU_NUM; i++)
> -		dw_pcie_disable_atu(pcie->pci, DW_PCIE_REGION_OUTBOUND, i);
> +		dw_pcie_disable_atu(pcie->pci, i, DW_PCIE_REGION_OUTBOUND);
>  }
>  
>  static int ls1021_pcie_link_up(struct dw_pcie *pci)
> -- 
> 2.17.1
> 

  reply	other threads:[~2018-10-25 13:45 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-25  8:53 Z.q. Hou
2018-10-25 13:45 ` Bjorn Helgaas [this message]
2018-10-26  2:20   ` Z.q. Hou
2018-10-29 16:31     ` Bjorn Helgaas
2018-11-07  4:41       ` Z.q. Hou

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