No point in building unused code when CONFIG_SYSFS=n.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211206210223.985907940@linutronix.de
void pci_msi_mask_irq(struct irq_data *data);
void pci_msi_unmask_irq(struct irq_data *data);
+#ifdef CONFIG_SYSFS
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 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
/*
* The arch hooks to setup up msi irqs. Default functions are implemented
}
EXPORT_SYMBOL_GPL(get_cached_msi_msg);
+#ifdef CONFIG_SYSFS
static ssize_t msi_mode_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
kfree(msi_irq_groups);
}
}
+#endif
#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
static inline void irq_chip_write_msi_msg(struct irq_data *data,