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]> 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
