From: Bjorn Helgaas <helgaas@kernel.org>
To: sathyanarayanan.kuppuswamy@linux.intel.com
Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
ashok.raj@intel.com
Subject: Re: [PATCH v15 2/5] PCI/DPC: Remove pcie_device reference from dpc_dev structure
Date: Wed, 26 Feb 2020 07:43:11 -0600 [thread overview]
Message-ID: <20200226134311.GA109052@google.com> (raw)
In-Reply-To: <48cc718aef4c4612b0896bd4a270c6c1f0c0f1a7.1581617873.git.sathyanarayanan.kuppuswamy@linux.intel.com>
On Thu, Feb 13, 2020 at 10:20:14AM -0800, sathyanarayanan.kuppuswamy@linux.intel.com wrote:
> From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
>
> Currently the only use of pcie_device member in dpc_dev structure is to
> get the associated pci_dev reference. Since none of the users of
> dpc_dev need reference to pcie_device, just remove it and replace it
> with associated pci_dev pointer reference.
>
> Removing pcie_device reference will help if we have need to call DPC
> driver functions outside PCIe port drivers.
I like this a lot, thanks for doing this.
> Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
> ---
> drivers/pci/pcie/dpc.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c
> index e06f42f58d3d..99fca8400956 100644
> --- a/drivers/pci/pcie/dpc.c
> +++ b/drivers/pci/pcie/dpc.c
> @@ -18,7 +18,7 @@
> #include "../pci.h"
>
> struct dpc_dev {
> - struct pcie_device *dev;
> + struct pci_dev *pdev;
> u16 cap_pos;
> bool rp_extensions;
> u8 rp_log_size;
> @@ -101,7 +101,7 @@ void pci_restore_dpc_state(struct pci_dev *dev)
> static int dpc_wait_rp_inactive(struct dpc_dev *dpc)
> {
> unsigned long timeout = jiffies + HZ;
> - struct pci_dev *pdev = dpc->dev->port;
> + struct pci_dev *pdev = dpc->pdev;
> u16 cap = dpc->cap_pos, status;
>
> pci_read_config_word(pdev, cap + PCI_EXP_DPC_STATUS, &status);
> @@ -149,7 +149,7 @@ static pci_ers_result_t dpc_reset_link(struct pci_dev *pdev)
>
> static void dpc_process_rp_pio_error(struct dpc_dev *dpc)
> {
> - struct pci_dev *pdev = dpc->dev->port;
> + struct pci_dev *pdev = dpc->pdev;
> u16 cap = dpc->cap_pos, dpc_status, first_error;
> u32 status, mask, sev, syserr, exc, dw0, dw1, dw2, dw3, log, prefix;
> int i;
> @@ -228,7 +228,7 @@ static irqreturn_t dpc_handler(int irq, void *context)
> {
> struct aer_err_info info;
> struct dpc_dev *dpc = context;
> - struct pci_dev *pdev = dpc->dev->port;
> + struct pci_dev *pdev = dpc->pdev;
> u16 cap = dpc->cap_pos, status, source, reason, ext_reason;
>
> pci_read_config_word(pdev, cap + PCI_EXP_DPC_STATUS, &status);
> @@ -267,7 +267,7 @@ static irqreturn_t dpc_handler(int irq, void *context)
> static irqreturn_t dpc_irq(int irq, void *context)
> {
> struct dpc_dev *dpc = (struct dpc_dev *)context;
> - struct pci_dev *pdev = dpc->dev->port;
> + struct pci_dev *pdev = dpc->pdev;
> u16 cap = dpc->cap_pos, status;
>
> pci_read_config_word(pdev, cap + PCI_EXP_DPC_STATUS, &status);
> @@ -299,7 +299,7 @@ static int dpc_probe(struct pcie_device *dev)
> return -ENOMEM;
>
> dpc->cap_pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_DPC);
> - dpc->dev = dev;
> + dpc->pdev = pdev;
> set_service_data(dev, dpc);
>
> status = devm_request_threaded_irq(device, dev->irq, dpc_irq,
> --
> 2.21.0
>
next prev parent reply other threads:[~2020-02-26 13:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-13 18:20 [PATCH v15 0/5] Add Error Disconnect Recover (EDR) support sathyanarayanan.kuppuswamy
2020-02-13 18:20 ` [PATCH v15 1/5] PCI/ERR: Update error status after reset_link() sathyanarayanan.kuppuswamy
2020-02-26 13:41 ` Bjorn Helgaas
2020-02-13 18:20 ` [PATCH v15 2/5] PCI/DPC: Remove pcie_device reference from dpc_dev structure sathyanarayanan.kuppuswamy
2020-02-26 13:43 ` Bjorn Helgaas [this message]
2020-02-13 18:20 ` [PATCH v15 3/5] PCI/EDR: Export AER, DPC and error recovery functions sathyanarayanan.kuppuswamy
2020-02-26 1:02 ` Bjorn Helgaas
2020-02-26 19:30 ` Kuppuswamy Sathyanarayanan
2020-02-26 21:13 ` Bjorn Helgaas
2020-02-26 21:26 ` Kuppuswamy Sathyanarayanan
2020-02-26 21:48 ` Bjorn Helgaas
2020-02-13 18:20 ` [PATCH v15 4/5] PCI/DPC: Add Error Disconnect Recover (EDR) support sathyanarayanan.kuppuswamy
2020-02-26 1:02 ` Bjorn Helgaas
2020-02-26 18:42 ` Kuppuswamy Sathyanarayanan
2020-02-26 21:32 ` Bjorn Helgaas
2020-02-26 22:11 ` Kuppuswamy Sathyanarayanan
2020-02-26 22:41 ` Bjorn Helgaas
2020-02-13 18:20 ` [PATCH v15 5/5] PCI/ACPI: Enable EDR support sathyanarayanan.kuppuswamy
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