[PATCH V4 1/3] rpmsg: core: Add signal API support

[Krzysztof Kozlowski]

On 28/11/2022 14:28, Sarannya S wrote:
> Some transports like Glink support the state notifications between
> clients using flow control signals similar to serial protocol signals.
> Local glink client drivers can send and receive flow control status
> to glink clients running on remote processors.
> 
> Add APIs to support sending and receiving of flow control status by
> rpmsg clients.
> 
> Signed-off-by: Deepak Kumar Singh <quic_deesin at quicinc.com>
> ---
>  arch/arm64/configs/defconfig   |  2 ++

Thank you for your patch. There is something to discuss/improve.

defconfig changes are not related with code, please keep separate with
their own explanation.

>  drivers/rpmsg/rpmsg_core.c     | 20 ++++++++++++++++++++
>  drivers/rpmsg/rpmsg_internal.h |  2 ++
>  include/linux/rpmsg.h          | 15 +++++++++++++++
>  4 files changed, 39 insertions(+)
> 
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index 0b6af33..2df3778 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -26,6 +26,8 @@ CONFIG_CGROUP_CPUACCT=y
>  CONFIG_CGROUP_PERF=y
>  CONFIG_CGROUP_BPF=y
>  CONFIG_USER_NS=y
> +CONFIG_RPMSG=y
> +CONFIG_RPMSG_CHAR=y

Why? It is already =m
I don't think this is correct patch hunk...

Best regards,
Krzysztof