Hi,
On 4/7/21 11:15 AM, Zhen Lei wrote:
> Fixes the following W=1 kernel build warning:
>
> drivers/usb/typec/tcpm/tcpm.c:2107:39: warning: ‘tcpm_altmode_ops’ defined but not used [-Wunused-const-variable=]
>
> The reference to the variable 'tcpm_altmode_ops' is deleted by the
> commit a079973f462a ("usb: typec: tcpm: Remove tcpc_config configuration
> mechanism").
>
> By the way, the static functions referenced only by the variable
> 'tcpm_altmode_ops' are deleted accordingly.
>
> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
> Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
I have a patch pending:
https://www.spinics.net/lists/linux-usb/msg197684.html
Which actually uses this. I really need to (and plan to) brush the dust of
this one soon and submit a new version.
As such I would prefer for these ops to not get removed. But I guess I
can always include a patch in my series reverting the removal...
Regards,
Hans
> ---
> drivers/usb/typec/tcpm/tcpm.c | 60 -------------------------------------------
> 1 file changed, 60 deletions(-)
>
> diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
> index ce7af398c7c1c1f..2f89bae29c0c297 100644
> --- a/drivers/usb/typec/tcpm/tcpm.c
> +++ b/drivers/usb/typec/tcpm/tcpm.c
> @@ -1365,14 +1365,6 @@ static void tcpm_queue_vdm(struct tcpm_port *port, const u32 header,
> mod_vdm_delayed_work(port, 0);
> }
>
> -static void tcpm_queue_vdm_unlocked(struct tcpm_port *port, const u32 header,
> - const u32 *data, int cnt)
> -{
> - mutex_lock(&port->lock);
> - tcpm_queue_vdm(port, header, data, cnt);
> - mutex_unlock(&port->lock);
> -}
> -
> static void svdm_consume_identity(struct tcpm_port *port, const u32 *p, int cnt)
> {
> u32 vdo = p[VDO_INDEX_IDH];
> @@ -1705,8 +1697,6 @@ static void tcpm_handle_vdm_request(struct tcpm_port *port,
> *
> * And we also have this ordering:
> * 1. alt-mode driver takes the alt-mode's lock
> - * 2. alt-mode driver calls tcpm_altmode_enter which takes the
> - * tcpm port lock
> *
> * Dropping our lock here avoids this.
> */
> @@ -2060,56 +2050,6 @@ static int tcpm_validate_caps(struct tcpm_port *port, const u32 *pdo,
> return 0;
> }
>
> -static int tcpm_altmode_enter(struct typec_altmode *altmode, u32 *vdo)
> -{
> - struct tcpm_port *port = typec_altmode_get_drvdata(altmode);
> - int svdm_version;
> - u32 header;
> -
> - svdm_version = typec_get_negotiated_svdm_version(port->typec_port);
> - if (svdm_version < 0)
> - return svdm_version;
> -
> - header = VDO(altmode->svid, vdo ? 2 : 1, svdm_version, CMD_ENTER_MODE);
> - header |= VDO_OPOS(altmode->mode);
> -
> - tcpm_queue_vdm_unlocked(port, header, vdo, vdo ? 1 : 0);
> - return 0;
> -}
> -
> -static int tcpm_altmode_exit(struct typec_altmode *altmode)
> -{
> - struct tcpm_port *port = typec_altmode_get_drvdata(altmode);
> - int svdm_version;
> - u32 header;
> -
> - svdm_version = typec_get_negotiated_svdm_version(port->typec_port);
> - if (svdm_version < 0)
> - return svdm_version;
> -
> - header = VDO(altmode->svid, 1, svdm_version, CMD_EXIT_MODE);
> - header |= VDO_OPOS(altmode->mode);
> -
> - tcpm_queue_vdm_unlocked(port, header, NULL, 0);
> - return 0;
> -}
> -
> -static int tcpm_altmode_vdm(struct typec_altmode *altmode,
> - u32 header, const u32 *data, int count)
> -{
> - struct tcpm_port *port = typec_altmode_get_drvdata(altmode);
> -
> - tcpm_queue_vdm_unlocked(port, header, data, count - 1);
> -
> - return 0;
> -}
> -
> -static const struct typec_altmode_ops tcpm_altmode_ops = {
> - .enter = tcpm_altmode_enter,
> - .exit = tcpm_altmode_exit,
> - .vdm = tcpm_altmode_vdm,
> -};
> -
> /*
> * PD (data, control) command handling functions
> */
>
