On 2020/3/30 10:39, Zhou Wang wrote: > On 2020/3/28 19:41, YueHaibing wrote: >> If PCI_MSI is not set, building fais: >> >> drivers/dma/hisi_dma.c: In function ‘hisi_dma_free_irq_vectors’: >> drivers/dma/hisi_dma.c:138:2: error: implicit declaration of function ‘pci_free_irq_vectors’; >> did you mean ‘pci_alloc_irq_vectors’? [-Werror=implicit-function-declaration] >> pci_free_irq_vectors(data); >> ^~~~~~~~~~~~~~~~~~~~ >> >> Make HISI_DMA depends on PCI_MSI to fix this. > > In ARM64, it will appear this compile error if PCI disables. > How about adding depends on PCI && PCI_MSI here? PCI_MSI depends on PCI, while PCI is not set, PCI_MSI will never be set so depends on PCI_MSI is enough. > > Best, > Zhou > >> >> Fixes: e9f08b65250d ("dmaengine: hisilicon: Add Kunpeng DMA engine support") >> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx> >> --- >> drivers/dma/Kconfig | 3 ++- >> 1 file changed, 2 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig >> index 092483644315..023db6883d05 100644 >> --- a/drivers/dma/Kconfig >> +++ b/drivers/dma/Kconfig >> @@ -241,7 +241,8 @@ config FSL_RAID >> >> config HISI_DMA >> tristate "HiSilicon DMA Engine support" >> - depends on ARM64 || (COMPILE_TEST && PCI_MSI) >> + depends on ARM64 || COMPILE_TEST >> + depends on PCI_MSI >> select DMA_ENGINE >> select DMA_VIRTUAL_CHANNELS >> help >> > > > . >