On Fri, Aug 19, 2022 at 02:02:30PM -0700, Jeff Johnson wrote:
Subject prefix should include "host" as we now have both host and ep MHI
stacks. Like,
bus: mhi: host: make mhi_controller_config::event_cfg const
> Currently the event_cfg pointer in struct mhi_controller_config is not
> defined as a const pointer. This prevents clients from registering a
> read-only configuration unless they use a typecast. Since the
> event_cfg should not be modified once registered, add the const
> qualifier to event_cfg. This is aligned with the definition of ch_cfg.
>
I don't know how it got missed as it should've been made constant in the
initial implementation itself :/
> Signed-off-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx>
> ---
> drivers/bus/mhi/host/pci_generic.c | 14 +++++++-------
> include/linux/mhi.h | 2 +-
> 2 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
> index 841626727f6b..2470e9f82aeb 100644
> --- a/drivers/bus/mhi/host/pci_generic.c
> +++ b/drivers/bus/mhi/host/pci_generic.c
> @@ -238,7 +238,7 @@ static const struct mhi_channel_config modem_qcom_v1_mhi_channels[] = {
> MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 128, 3),
> };
>
> -static struct mhi_event_config modem_qcom_v1_mhi_events[] = {
> +static const struct mhi_event_config modem_qcom_v1_mhi_events[] = {
> /* first ring is control+data ring */
> MHI_EVENT_CONFIG_CTRL(0, 64),
> /* DIAG dedicated event ring */
> @@ -305,7 +305,7 @@ static const struct mhi_channel_config mhi_quectel_em1xx_channels[] = {
> MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 128, 3),
> };
>
> -static struct mhi_event_config mhi_quectel_em1xx_events[] = {
> +static const struct mhi_event_config mhi_quectel_em1xx_events[] = {
> MHI_EVENT_CONFIG_CTRL(0, 128),
> MHI_EVENT_CONFIG_DATA(1, 128),
> MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100),
> @@ -344,7 +344,7 @@ static const struct mhi_channel_config mhi_foxconn_sdx55_channels[] = {
> MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 128, 3),
> };
>
> -static struct mhi_event_config mhi_foxconn_sdx55_events[] = {
> +static struct const mhi_event_config mhi_foxconn_sdx55_events[] = {
const struct?
Thanks,
Mani
> MHI_EVENT_CONFIG_CTRL(0, 128),
> MHI_EVENT_CONFIG_DATA(1, 128),
> MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100),
> @@ -391,7 +391,7 @@ static const struct mhi_channel_config mhi_mv3x_channels[] = {
> MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 512, 3),
> };
>
> -static struct mhi_event_config mhi_mv3x_events[] = {
> +static const struct mhi_event_config mhi_mv3x_events[] = {
> MHI_EVENT_CONFIG_CTRL(0, 256),
> MHI_EVENT_CONFIG_DATA(1, 256),
> MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100),
> @@ -438,7 +438,7 @@ static const struct mhi_channel_config mhi_sierra_em919x_channels[] = {
> MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 512, 2),
> };
>
> -static struct mhi_event_config modem_sierra_em919x_mhi_events[] = {
> +static const struct mhi_event_config modem_sierra_em919x_mhi_events[] = {
> /* first ring is control+data and DIAG ring */
> MHI_EVENT_CONFIG_CTRL(0, 2048),
> /* Hardware channels request dedicated hardware event rings */
> @@ -472,7 +472,7 @@ static const struct mhi_channel_config mhi_telit_fn980_hw_v1_channels[] = {
> MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 128, 2),
> };
>
> -static struct mhi_event_config mhi_telit_fn980_hw_v1_events[] = {
> +static const struct mhi_event_config mhi_telit_fn980_hw_v1_events[] = {
> MHI_EVENT_CONFIG_CTRL(0, 128),
> MHI_EVENT_CONFIG_HW_DATA(1, 1024, 100),
> MHI_EVENT_CONFIG_HW_DATA(2, 2048, 101)
> @@ -511,7 +511,7 @@ static const struct mhi_channel_config mhi_telit_fn990_channels[] = {
> MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 128, 3),
> };
>
> -static struct mhi_event_config mhi_telit_fn990_events[] = {
> +static const struct mhi_event_config mhi_telit_fn990_events[] = {
> MHI_EVENT_CONFIG_CTRL(0, 128),
> MHI_EVENT_CONFIG_DATA(1, 128),
> MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100),
> diff --git a/include/linux/mhi.h b/include/linux/mhi.h
> index a5441ad33c74..ada2f18af4d6 100644
> --- a/include/linux/mhi.h
> +++ b/include/linux/mhi.h
> @@ -281,7 +281,7 @@ struct mhi_controller_config {
> u32 num_channels;
> const struct mhi_channel_config *ch_cfg;
> u32 num_events;
> - struct mhi_event_config *event_cfg;
> + const struct mhi_event_config *event_cfg;
> bool use_bounce_buf;
> bool m2_no_db;
> };
> --
> 2.37.0
>
--
மணிவண்ணன் சதாசிவம்
