RE: [RFC 1/2] of: reserved_mem: check return value of_dma_configure

> -Original Message- > From: Peng Fan > Sent: Sunday, November 26, 2017 9:14 PM > To: h...@lst.de; m.szyprow...@samsung.com; robin.mur...@arm.com; > gre...@linuxfoundation.org; robh...@kernel.org; frowand.l...@gmail.com > Cc: iommu@lists.linux-foundation.org;

[RFC 2/2] drivers: dma-mapping: parse per device reserved mem at probe time

Invoke of_reserved_mem_device_init at dma_configure, then there is no need to call of_reserved_mem_device_init in device specific probe function. Signed-off-by: Peng Fan --- drivers/base/dma-mapping.c | 6 +- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git

[RFC 1/2] of: reserved_mem: check return value of_dma_configure

In commit <7b07cbefb6>("iommu: of: Handle IOMMU lookup failure with deferred probing or error"), there is possibility that of_dma_configure may fail. So in of_reserved_mem_device_init_by_idx, also need to propagate the return value of_dma_configure to caller, when need to use reserved memory for a