Hello Fred, thanks for the feedback!

On Tue, 2021-07-20 at 19:51 +0200, Frederic Barrat wrote:

On 16/07/2021 10:27, Leonardo Bras wrote:

quoted

Update remove_dma_window() so it can be used to remove DDW with a
given
property name.

This enables the creation of new property names for DDW, so we can
have different usage for it, like indirect mapping.

Signed-off-by: Leonardo Bras <redacted>
Reviewed-by: Alexey Kardashevskiy <redacted>
---
  arch/powerpc/platforms/pseries/iommu.c | 21 +++++++++++----------
  1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/iommu.c

b/arch/powerpc/platforms/pseries/iommu.c
index 108c3dcca686..17c6f4706e76 100644

--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c

@@ -830,31 +830,32 @@ static void remove_dma_window(struct

device_node *np, u32 *ddw_avail,
                        np, ret, ddw_avail[DDW_REMOVE_PE_DMA_WIN],
liobn);
  }
  
-static void remove_ddw(struct device_node *np, bool remove_prop)
+static int remove_ddw(struct device_node *np, bool remove_prop,
const char *win_name)
  {

Why switch to returning an int? None of the callers check it.

IIRC, in a previous version it did make sense, which is not the case
anymore. I will revert this.

Thanks!

   Fred