From f956c1b0d58a50dd92ec82ae4923f7cc97e2ea52 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Sergio=20Migu=C3=A9ns=20Iglesias?= Date: Mon, 30 Aug 2021 19:53:05 +0200 Subject: [PATCH] xen/pcifront: Removed unnecessary __ref annotation MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit An unnecessary "__ref" annotation was removed from the "drivers/pci/xen_pcifront.c" file. The function where the annotation was used was "pcifront_backend_changed()", which does not call any functions annotated as "__*init" nor "__*exit". This makes "__ref" unnecessary since this annotation is used to make the compiler ignore section miss-matches when they are not happening here in the first place. In addition to the aforementioned change, some code style issues were fixed in the same file. Signed-off-by: Sergio Miguéns Iglesias Reviewed-by: Juergen Gross Link: https://lore.kernel.org/r/20210830175305.13370-1-sergio@lony.xyz Signed-off-by: Juergen Gross --- drivers/pci/xen-pcifront.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c index b7a8f3a1921f8..427041c1e4088 100644 --- a/drivers/pci/xen-pcifront.c +++ b/drivers/pci/xen-pcifront.c @@ -115,7 +115,7 @@ static int do_pci_op(struct pcifront_device *pdev, struct xen_pci_op *op) struct xen_pci_op *active_op = &pdev->sh_info->op; unsigned long irq_flags; evtchn_port_t port = pdev->evtchn; - unsigned irq = pdev->irq; + unsigned int irq = pdev->irq; s64 ns, ns_timeout; spin_lock_irqsave(&pdev->sh_info_lock, irq_flags); @@ -153,10 +153,10 @@ static int do_pci_op(struct pcifront_device *pdev, struct xen_pci_op *op) } /* - * We might lose backend service request since we - * reuse same evtchn with pci_conf backend response. So re-schedule - * aer pcifront service. - */ + * We might lose backend service request since we + * reuse same evtchn with pci_conf backend response. So re-schedule + * aer pcifront service. + */ if (test_bit(_XEN_PCIB_active, (unsigned long *)&pdev->sh_info->flags)) { dev_err(&pdev->xdev->dev, @@ -414,7 +414,8 @@ static int pcifront_scan_bus(struct pcifront_device *pdev, struct pci_dev *d; unsigned int devfn; - /* Scan the bus for functions and add. + /* + * Scan the bus for functions and add. * We omit handling of PCI bridge attachment because pciback prevents * bridges from being exported. */ @@ -492,8 +493,10 @@ static int pcifront_scan_root(struct pcifront_device *pdev, list_add(&bus_entry->list, &pdev->root_buses); - /* pci_scan_root_bus skips devices which do not have a - * devfn==0. The pcifront_scan_bus enumerates all devfn. */ + /* + * pci_scan_root_bus skips devices which do not have a + * devfn==0. The pcifront_scan_bus enumerates all devfn. + */ err = pcifront_scan_bus(pdev, domain, bus, b); /* Claim resources before going "live" with our devices */ @@ -651,8 +654,10 @@ static void pcifront_do_aer(struct work_struct *data) pci_channel_state_t state = (pci_channel_state_t)pdev->sh_info->aer_op.err; - /*If a pci_conf op is in progress, - we have to wait until it is done before service aer op*/ + /* + * If a pci_conf op is in progress, we have to wait until it is done + * before service aer op + */ dev_dbg(&pdev->xdev->dev, "pcifront service aer bus %x devfn %x\n", pdev->sh_info->aer_op.bus, pdev->sh_info->aer_op.devfn); @@ -676,6 +681,7 @@ static void pcifront_do_aer(struct work_struct *data) static irqreturn_t pcifront_handler_aer(int irq, void *dev) { struct pcifront_device *pdev = dev; + schedule_pcifront_aer_op(pdev); return IRQ_HANDLED; } @@ -1027,6 +1033,7 @@ static int pcifront_detach_devices(struct pcifront_device *pdev) /* Find devices being detached and remove them. */ for (i = 0; i < num_devs; i++) { int l, state; + l = snprintf(str, sizeof(str), "state-%d", i); if (unlikely(l >= (sizeof(str) - 1))) { err = -ENOMEM; @@ -1078,7 +1085,7 @@ out: return err; } -static void __ref pcifront_backend_changed(struct xenbus_device *xdev, +static void pcifront_backend_changed(struct xenbus_device *xdev, enum xenbus_state be_state) { struct pcifront_device *pdev = dev_get_drvdata(&xdev->dev); @@ -1137,6 +1144,7 @@ out: static int pcifront_xenbus_remove(struct xenbus_device *xdev) { struct pcifront_device *pdev = dev_get_drvdata(&xdev->dev); + if (pdev) free_pdev(pdev); -- 2.39.5