[cc +bjorn, +linux-pci]
On Wed, 17 Feb 2016 21:05:38 +0000
Luis Henriques <luis.henriques@xxxxxxxxxxxxx> wrote:
> Stubbing function pci_write_msi_msg when CONFIG_PCI_MSI is disabled fixes
> a link failure in vfio:
>
> drivers/built-in.o: In function `vfio_msi_set_vector_signal':
> :(.text+0x626640): undefined reference to `pci_write_msi_msg'
>
> Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
> ---
> include/linux/msi.h | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/msi.h b/include/linux/msi.h
> index a2a0068a8387..09dc375d11d8 100644
> --- a/include/linux/msi.h
> +++ b/include/linux/msi.h
> @@ -105,18 +105,19 @@ struct msi_desc {
>
> struct pci_dev *msi_desc_to_pci_dev(struct msi_desc *desc);
> void *msi_desc_to_pci_sysdata(struct msi_desc *desc);
> +void pci_write_msi_msg(unsigned int irq, struct msi_msg *msg);
> #else /* CONFIG_PCI_MSI */
> static inline void *msi_desc_to_pci_sysdata(struct msi_desc *desc)
> {
> return NULL;
> }
> +static inline void pci_write_msi_msg(unsigned int irq, struct msi_msg *msg) { }
> #endif /* CONFIG_PCI_MSI */
>
> struct msi_desc *alloc_msi_entry(struct device *dev);
> void free_msi_entry(struct msi_desc *entry);
> void __pci_read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
> void __pci_write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
> -void pci_write_msi_msg(unsigned int irq, struct msi_msg *msg);
>
> u32 __pci_msix_desc_mask_irq(struct msi_desc *desc, u32 flag);
> u32 __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
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