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authorSergio Miguéns Iglesias <lonyelon@gmail.com>2021-08-30 20:53:05 +0300
committerJuergen Gross <jgross@suse.com>2021-09-01 11:38:42 +0300
commitf956c1b0d58a50dd92ec82ae4923f7cc97e2ea52 (patch)
tree95f20c9172754fc0ae24261ffe0b3efbd3ed65dc /drivers/pci/xen-pcifront.c
parent1a0df28c09831dc4bd336fe6e090bbe85a07e79f (diff)
downloadlinux-f956c1b0d58a50dd92ec82ae4923f7cc97e2ea52.tar.xz
xen/pcifront: Removed unnecessary __ref annotation
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@lony.xyz> Reviewed-by: Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/20210830175305.13370-1-sergio@lony.xyz Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'drivers/pci/xen-pcifront.c')
-rw-r--r--drivers/pci/xen-pcifront.c30
1 files 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 @@ 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);