Smatch reports this issue
virtual_link_hwss.c:32:6: warning: symbol
  'virtual_setup_stream_attribute' was not declared.
  Should it be static?

virtual_setup_stream_attribute is only used in
virtual_link_hwss.c, but the other functions in the
file are declared in the header file and used elsewhere.
For consistency, add the virtual_setup_stream_attribute
decl to virtual_link_hwss.h.

Signed-off-by: Tom Rix <trix@redhat.com>
---
 drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.h b/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.h
index e6bcb4bb0f3a..fbcbc5afb47d 100644
--- a/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.h
+++ b/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.h
@@ -28,6 +28,7 @@
 #include "core_types.h"
 
 void virtual_setup_stream_encoder(struct pipe_ctx *pipe_ctx);
+void virtual_setup_stream_attribute(struct pipe_ctx *pipe_ctx);
 void virtual_reset_stream_encoder(struct pipe_ctx *pipe_ctx);
 const struct link_hwss *get_virtual_link_hwss(void);
 
-- 
2.27.0

Applied.  Thanks!

On Mon, Apr 18, 2022 at 3:48 PM Tom Rix <trix@redhat.com> wrote:
>
> Smatch reports this issue
> virtual_link_hwss.c:32:6: warning: symbol
>   'virtual_setup_stream_attribute' was not declared.
>   Should it be static?
>
> virtual_setup_stream_attribute is only used in
> virtual_link_hwss.c, but the other functions in the
> file are declared in the header file and used elsewhere.
> For consistency, add the virtual_setup_stream_attribute
> decl to virtual_link_hwss.h.
>
> Signed-off-by: Tom Rix <trix@redhat.com>
> ---
>  drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.h | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.h b/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.h
> index e6bcb4bb0f3a..fbcbc5afb47d 100644
> --- a/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.h
> +++ b/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.h
> @@ -28,6 +28,7 @@
>  #include "core_types.h"
>
>  void virtual_setup_stream_encoder(struct pipe_ctx *pipe_ctx);
> +void virtual_setup_stream_attribute(struct pipe_ctx *pipe_ctx);
>  void virtual_reset_stream_encoder(struct pipe_ctx *pipe_ctx);
>  const struct link_hwss *get_virtual_link_hwss(void);
>
> --
> 2.27.0
>