On Mon, Jul 19, 2021 at 8:31 PM Will Deacon <[email protected]> wrote: > > When CONFIG_OF_ADDRESS=n, of_dma_set_restricted_buffer() returns -ENODEV > and breaks the boot for sparc[64] machines. Return 0 instead, since the > function is essentially a glorified NOP in this configuration. > > Cc: Claire Chang <[email protected]> > Cc: Konrad Rzeszutek Wilk <[email protected]> > Reported-by: Guenter Roeck <[email protected]> > Suggested-by: Robin Murphy <[email protected]> > Tested-by: Guenter Roeck <[email protected]>
Tested-by: Claire Chang <[email protected]> > Link: https://lore.kernel.org/r/[email protected] > Fixes: fec9b625095f ("of: Add plumbing for restricted DMA pool") > Signed-off-by: Will Deacon <[email protected]> > --- > drivers/of/of_private.h | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/of/of_private.h b/drivers/of/of_private.h > index 376462798f7e..f557bd22b0cf 100644 > --- a/drivers/of/of_private.h > +++ b/drivers/of/of_private.h > @@ -173,7 +173,8 @@ static inline int of_dma_get_range(struct device_node *np, > static inline int of_dma_set_restricted_buffer(struct device *dev, > struct device_node *np) > { > - return -ENODEV; > + /* Do nothing, successfully. */ > + return 0; > } > #endif > > -- > 2.32.0.402.g57bb445576-goog > _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
