Vishal Verma wrote:
> Commit 3d6cd829ec08 ("cxl/region: Use cxl_filter_walk() to gather
> create-region targets")
> removed the early return for create-region, and this caused a
> create-region operation to unnecessarily loop through buses and root
> decoders only to EINVAL out because ACTION_CREATE is handled outside of
> the other actions. This results in confising messages such as:
>
> # cxl create-region -t ram -d 0.0 -m 0,4
> {
> "region":"region7",
> "resource":"0xf030000000",
> "size":"512.00 MiB (536.87 MB)",
> ...
> }
> cxl region: decoder_region_action: region0: failed: Invalid argument
> cxl region: region_action: one or more failures, last failure: Invalid
> argument
> cxl region: cmd_create_region: created 1 region
>
> Since there's no need to walk through the topology after creating a
> region, and especially not to perform an invalid 'action', switch
> back to retuening early for create-region.
>
> Fixes: 3d6cd829ec08 ("cxl/region: Use cxl_filter_walk() to gather
> create-region targets")
> Cc: Dan Williams <dan.j.willi...@intel.com>
Reviewed-by: Ira Weiny <ira.we...@intel.com>
> Signed-off-by: Vishal Verma <vishal.l.ve...@intel.com>
> ---
> cxl/region.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/cxl/region.c b/cxl/region.c
> index efe05aa..38aa142 100644
> --- a/cxl/region.c
> +++ b/cxl/region.c
> @@ -789,7 +789,7 @@ static int region_action(int argc, const char **argv,
> struct cxl_ctx *ctx,
> return rc;
>
> if (action == ACTION_CREATE)
> - rc = create_region(ctx, count, p);
> + return create_region(ctx, count, p);
>
> cxl_bus_foreach(ctx, bus) {
> struct cxl_decoder *decoder;
>
> --
> 2.39.1
>
>
