[PATCH v2] xen/pcifront: Removed unnecessary __ref annotation

["Sergio Miguéns Iglesias" <lonyelon@xxxxxxxxx>]

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 <sergio@xxxxxxxx>
---
 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 b7a8f3a1921f..427041c1e408 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 @@ static int pcifront_detach_devices(struct pcifront_device 
*pdev)
        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 @@ static int pcifront_xenbus_probe(struct xenbus_device 
*xdev,
 static int pcifront_xenbus_remove(struct xenbus_device *xdev)
 {
        struct pcifront_device *pdev = dev_get_drvdata(&xdev->dev);
+
        if (pdev)
                free_pdev(pdev);
 
-- 
2.33.0