rpmsg: core: Remove deadcode
rpmsg_send_offchannel() and rpmsg_trysend_offchannel() have been
unused since they were added in 2011's
commit bcabbccabf ("rpmsg: add virtio-based remote processor messaging
bus")
Remove them and associated docs.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20250429234600.301083-2-linux@treblig.org
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
This commit is contained in:
Dr. David Alan Gilbert
Mathieu Poirier
parent
0af2f6be1b
commit
20b4f0b4cd
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@ -110,31 +110,6 @@ or a timeout of 15 seconds elapses. When the latter happens,
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The function can only be called from a process context (for now).
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Returns 0 on success and an appropriate error value on failure.
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::
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int rpmsg_send_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
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void *data, int len);
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sends a message across to the remote processor, using the src and dst
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addresses provided by the user.
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The caller should specify the endpoint, the data it wants to send,
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its length (in bytes), and explicit source and destination addresses.
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The message will then be sent to the remote processor to which the
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endpoint's channel belongs, but the endpoint's src and channel dst
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addresses will be ignored (and the user-provided addresses will
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be used instead).
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In case there are no TX buffers available, the function will block until
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one becomes available (i.e. until the remote processor consumes
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a tx buffer and puts it back on virtio's used descriptor ring),
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or a timeout of 15 seconds elapses. When the latter happens,
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-ERESTARTSYS is returned.
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The function can only be called from a process context (for now).
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Returns 0 on success and an appropriate error value on failure.
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::
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int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len);
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@ -173,27 +148,6 @@ return -ENOMEM without waiting until one becomes available.
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The function can only be called from a process context (for now).
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Returns 0 on success and an appropriate error value on failure.
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::
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int rpmsg_trysend_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
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void *data, int len);
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sends a message across to the remote processor, using source and
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destination addresses provided by the user.
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The user should specify the channel, the data it wants to send,
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its length (in bytes), and explicit source and destination addresses.
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The message will then be sent to the remote processor to which the
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channel belongs, but the channel's src and dst addresses will be
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ignored (and the user-provided addresses will be used instead).
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In case there are no TX buffers available, the function will immediately
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return -ENOMEM without waiting until one becomes available.
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The function can only be called from a process context (for now).
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Returns 0 on success and an appropriate error value on failure.
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::
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struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *rpdev,
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@ -193,38 +193,6 @@ int rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
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}
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EXPORT_SYMBOL(rpmsg_sendto);
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/**
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* rpmsg_send_offchannel() - send a message using explicit src/dst addresses
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* @ept: the rpmsg endpoint
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* @src: source address
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* @dst: destination address
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* @data: payload of message
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* @len: length of payload
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*
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* This function sends @data of length @len to the remote @dst address,
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* and uses @src as the source address.
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* The message will be sent to the remote processor which the @ept
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* endpoint belongs to.
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* In case there are no TX buffers available, the function will block until
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* one becomes available, or a timeout of 15 seconds elapses. When the latter
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* happens, -ERESTARTSYS is returned.
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*
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* Can only be called from process context (for now).
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*
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* Return: 0 on success and an appropriate error value on failure.
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*/
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int rpmsg_send_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
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void *data, int len)
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{
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if (WARN_ON(!ept))
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return -EINVAL;
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if (!ept->ops->send_offchannel)
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return -ENXIO;
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return ept->ops->send_offchannel(ept, src, dst, data, len);
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}
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EXPORT_SYMBOL(rpmsg_send_offchannel);
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/**
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* rpmsg_trysend() - send a message across to the remote processor
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* @ept: the rpmsg endpoint
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@ -301,37 +269,6 @@ __poll_t rpmsg_poll(struct rpmsg_endpoint *ept, struct file *filp,
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}
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EXPORT_SYMBOL(rpmsg_poll);
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/**
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* rpmsg_trysend_offchannel() - send a message using explicit src/dst addresses
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* @ept: the rpmsg endpoint
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* @src: source address
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* @dst: destination address
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* @data: payload of message
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* @len: length of payload
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*
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* This function sends @data of length @len to the remote @dst address,
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* and uses @src as the source address.
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* The message will be sent to the remote processor which the @ept
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* endpoint belongs to.
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* In case there are no TX buffers available, the function will immediately
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* return -ENOMEM without waiting until one becomes available.
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*
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* Can only be called from process context (for now).
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*
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* Return: 0 on success and an appropriate error value on failure.
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*/
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int rpmsg_trysend_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
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void *data, int len)
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{
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if (WARN_ON(!ept))
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return -EINVAL;
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if (!ept->ops->trysend_offchannel)
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return -ENXIO;
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return ept->ops->trysend_offchannel(ept, src, dst, data, len);
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}
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EXPORT_SYMBOL(rpmsg_trysend_offchannel);
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/**
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* rpmsg_set_flow_control() - request remote to pause/resume transmission
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* @ept: the rpmsg endpoint
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@ -184,13 +184,9 @@ struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *,
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int rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len);
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int rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
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int rpmsg_send_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
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void *data, int len);
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int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len);
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int rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
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int rpmsg_trysend_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
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void *data, int len);
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__poll_t rpmsg_poll(struct rpmsg_endpoint *ept, struct file *filp,
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poll_table *wait);
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@ -271,15 +267,6 @@ static inline int rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len,
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}
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static inline int rpmsg_send_offchannel(struct rpmsg_endpoint *ept, u32 src,
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u32 dst, void *data, int len)
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{
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/* This shouldn't be possible */
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WARN_ON(1);
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return -ENXIO;
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}
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static inline int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len)
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{
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/* This shouldn't be possible */
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@ -297,15 +284,6 @@ static inline int rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data,
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return -ENXIO;
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}
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static inline int rpmsg_trysend_offchannel(struct rpmsg_endpoint *ept, u32 src,
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u32 dst, void *data, int len)
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{
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/* This shouldn't be possible */
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WARN_ON(1);
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return -ENXIO;
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}
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static inline __poll_t rpmsg_poll(struct rpmsg_endpoint *ept,
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struct file *filp, poll_table *wait)
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{
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