No more users. Refactor the core code accordingly.

Signed-off-by: Thomas Gleixner <t...@linutronix.de>
---
 include/linux/msi.h |   12 -----------
 kernel/irq/msi.c    |   53 +++++++++++++++++++---------------------------------
 2 files changed, 20 insertions(+), 45 deletions(-)

--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -246,21 +246,9 @@ void pci_msi_unmask_irq(struct irq_data
 #ifdef CONFIG_SYSFS
 int msi_device_populate_sysfs(struct device *dev);
 void msi_device_destroy_sysfs(struct device *dev);
-
-const struct attribute_group **msi_populate_sysfs(struct device *dev);
-void msi_destroy_sysfs(struct device *dev,
-                      const struct attribute_group **msi_irq_groups);
 #else
 static inline int msi_device_populate_sysfs(struct device *dev) { return 0; }
 static inline void msi_device_destroy_sysfs(struct device *dev) { }
-
-static inline const struct attribute_group **msi_populate_sysfs(struct device 
*dev)
-{
-       return NULL;
-}
-static inline void msi_destroy_sysfs(struct device *dev, const struct 
attribute_group **msi_irq_groups)
-{
-}
 #endif
 
 /*
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -132,12 +132,8 @@ static ssize_t msi_mode_show(struct devi
 /**
  * msi_populate_sysfs - Populate msi_irqs sysfs entries for devices
  * @dev:       The device(PCI, platform etc) who will get sysfs entries
- *
- * Return attribute_group ** so that specific bus MSI can save it to
- * somewhere during initilizing msi irqs. If devices has no MSI irq,
- * return NULL; if it fails to populate sysfs, return ERR_PTR
  */
-const struct attribute_group **msi_populate_sysfs(struct device *dev)
+static const struct attribute_group **msi_populate_sysfs(struct device *dev)
 {
        const struct attribute_group **msi_irq_groups;
        struct attribute **msi_attrs, *msi_attr;
@@ -228,41 +224,32 @@ int msi_device_populate_sysfs(struct dev
 }
 
 /**
- * msi_destroy_sysfs - Destroy msi_irqs sysfs entries for devices
- * @dev:               The device(PCI, platform etc) who will remove sysfs 
entries
- * @msi_irq_groups:    attribute_group for device msi_irqs entries
- */
-void msi_destroy_sysfs(struct device *dev, const struct attribute_group 
**msi_irq_groups)
-{
-       struct device_attribute *dev_attr;
-       struct attribute **msi_attrs;
-       int count = 0;
-
-       if (msi_irq_groups) {
-               sysfs_remove_groups(&dev->kobj, msi_irq_groups);
-               msi_attrs = msi_irq_groups[0]->attrs;
-               while (msi_attrs[count]) {
-                       dev_attr = container_of(msi_attrs[count],
-                                       struct device_attribute, attr);
-                       kfree(dev_attr->attr.name);
-                       kfree(dev_attr);
-                       ++count;
-               }
-               kfree(msi_attrs);
-               kfree(msi_irq_groups[0]);
-               kfree(msi_irq_groups);
-       }
-}
-
-/**
  * msi_device_destroy_sysfs - Destroy msi_irqs sysfs entries for a device
  * @dev:               The device(PCI, platform etc) for which to remove
  *                     sysfs entries
  */
 void msi_device_destroy_sysfs(struct device *dev)
 {
-       msi_destroy_sysfs(dev, dev->msi.data->attrs);
+       const struct attribute_group **msi_irq_groups = dev->msi.data->attrs;
+       struct device_attribute *dev_attr;
+       struct attribute **msi_attrs;
+       int count = 0;
+
        dev->msi.data->attrs = NULL;
+       if (!msi_irq_groups)
+               return;
+
+       sysfs_remove_groups(&dev->kobj, msi_irq_groups);
+       msi_attrs = msi_irq_groups[0]->attrs;
+       while (msi_attrs[count]) {
+               dev_attr = container_of(msi_attrs[count], struct 
device_attribute, attr);
+               kfree(dev_attr->attr.name);
+               kfree(dev_attr);
+               ++count;
+       }
+       kfree(msi_attrs);
+       kfree(msi_irq_groups[0]);
+       kfree(msi_irq_groups);
 }
 #endif
 

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