diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2021-12-07 01:27:28 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2021-12-09 13:52:20 +0300 |
| commit | 1197528aaea79ed4909aba695d18fdecc5387a36 (patch) | |
| tree | ec14287b62e4eda7cf518821f879c5011d4e5f6e | |
| parent | 29bbc35e29d9b6347780dcacde2deb4b39344167 (diff) | |
| download | linux-1197528aaea79ed4909aba695d18fdecc5387a36.tar.xz | |
genirq/msi: Guard sysfs code
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
| -rw-r--r-- | include/linux/msi.h | 10 | ||||
| -rw-r--r-- | kernel/irq/msi.c | 2 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/msi.h b/include/linux/msi.h index e616f94c7c58..d43b9469c88b 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -239,9 +239,19 @@ void __pci_write_msi_msg(struct msi_desc *entry, struct msi_msg *msg); 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 diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index 7f350ae59c5f..a8a0daeb22f5 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -72,6 +72,7 @@ void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg) } 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) { @@ -204,6 +205,7 @@ void msi_destroy_sysfs(struct device *dev, const struct attribute_group **msi_ir kfree(msi_irq_groups); } } +#endif #ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN static inline void irq_chip_write_msi_msg(struct irq_data *data, |