Re: [PATCH] pci/aer: Get rid of aer_recover_work_func() forward declaration

From: Bjorn Helgaas
Date: Fri May 11 2018 - 15:00:20 EST


On Fri, May 11, 2018 at 06:39:23PM +0200, Borislav Petkov wrote:
> From: Borislav Petkov <bp@xxxxxxx>
>
> Just move the actual function up so that it is visible to its user
> aer_recover_queue().

Good idea.

Not *directly* related, but I'm really tired of the clutter of all these
separate files, and I'm thinking of squashing

drivers/pci/pcie/aer/* => drivers/pci/pcie/aer.c
drivers/pci/pcie/portdrv* => drivers/pci/pcie/portdrv.c
drivers/pci/hotplug/pciehp* => drivers/pci/hotplug/pciehp.c
drivers/pci/hotplug/shpchp* => drivers/pci/hotplug/shpchp.c
etc.

That would let us make many more things static and (more importantly,
IMO), make it easier to browse the code.

> No functional changes.
>
> Signed-off-by: Borislav Petkov <bp@xxxxxxx>
> ---
> drivers/pci/pcie/aer/aerdrv_core.c | 45 +++++++++++++++---------------
> 1 file changed, 22 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
> index 0ea5acc40323..a9e575189571 100644
> --- a/drivers/pci/pcie/aer/aerdrv_core.c
> +++ b/drivers/pci/pcie/aer/aerdrv_core.c
> @@ -567,8 +567,6 @@ static void handle_error_source(struct pcie_device *aerdev,
> }
>
> #ifdef CONFIG_ACPI_APEI_PCIEAER
> -static void aer_recover_work_func(struct work_struct *work);
> -
> #define AER_RECOVER_RING_ORDER 4
> #define AER_RECOVER_RING_SIZE (1 << AER_RECOVER_RING_ORDER)
>
> @@ -582,6 +580,28 @@ struct aer_recover_entry {
>
> static DEFINE_KFIFO(aer_recover_ring, struct aer_recover_entry,
> AER_RECOVER_RING_SIZE);
> +
> +static void aer_recover_work_func(struct work_struct *work)
> +{
> + struct aer_recover_entry entry;
> + struct pci_dev *pdev;
> +
> + while (kfifo_get(&aer_recover_ring, &entry)) {
> + pdev = pci_get_domain_bus_and_slot(entry.domain, entry.bus,
> + entry.devfn);
> + if (!pdev) {
> + pr_err("AER recover: Can not find pci_dev for %04x:%02x:%02x:%x\n",
> + entry.domain, entry.bus,
> + PCI_SLOT(entry.devfn), PCI_FUNC(entry.devfn));
> + continue;
> + }
> + cper_print_aer(pdev, entry.severity, entry.regs);
> + if (entry.severity != AER_CORRECTABLE)
> + do_recovery(pdev, entry.severity);
> + pci_dev_put(pdev);
> + }
> +}
> +
> /*
> * Mutual exclusion for writers of aer_recover_ring, reader side don't
> * need lock, because there is only one reader and lock is not needed
> @@ -611,27 +631,6 @@ void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
> spin_unlock_irqrestore(&aer_recover_ring_lock, flags);
> }
> EXPORT_SYMBOL_GPL(aer_recover_queue);
> -
> -static void aer_recover_work_func(struct work_struct *work)
> -{
> - struct aer_recover_entry entry;
> - struct pci_dev *pdev;
> -
> - while (kfifo_get(&aer_recover_ring, &entry)) {
> - pdev = pci_get_domain_bus_and_slot(entry.domain, entry.bus,
> - entry.devfn);
> - if (!pdev) {
> - pr_err("AER recover: Can not find pci_dev for %04x:%02x:%02x:%x\n",
> - entry.domain, entry.bus,
> - PCI_SLOT(entry.devfn), PCI_FUNC(entry.devfn));
> - continue;
> - }
> - cper_print_aer(pdev, entry.severity, entry.regs);
> - if (entry.severity != AER_CORRECTABLE)
> - do_recovery(pdev, entry.severity);
> - pci_dev_put(pdev);
> - }
> -}
> #endif
>
> /**
> --
> 2.17.0.391.g1f1cddd558b5
>