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soc: apple: rtkit: Get rid of apple_rtkit_send_message_wait

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It is fundamentally broken and has no users. Just remove it.

Acked-by: Eric Curtin <ecurtin@redhat.com>
Acked-by: Neal Gompa <neal@gompa.dev>
Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Hector Martin <marcan@marcan.st>
This commit is contained in:
Hector Martin 2022-05-05 01:25:16 +09:00
parent b85ea95d08
commit 57b79ac9f4
2 changed files with 0 additions and 50 deletions
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32
drivers/soc/apple/rtkit.c
View File

@ -641,38 +641,6 @@ int apple_rtkit_send_message(struct apple_rtkit *rtk, u8 ep, u64 message,
}
EXPORT_SYMBOL_GPL(apple_rtkit_send_message);
int apple_rtkit_send_message_wait(struct apple_rtkit *rtk, u8 ep, u64 message,
unsigned long timeout, bool atomic)
{
DECLARE_COMPLETION_ONSTACK(completion);
int ret;
long t;
ret = apple_rtkit_send_message(rtk, ep, message, &completion, atomic);
if (ret < 0)
return ret;
if (atomic) {
ret = mbox_flush(rtk->mbox_chan, timeout);
if (ret < 0)
return ret;
if (try_wait_for_completion(&completion))
return 0;
return -ETIME;
} else {
t = wait_for_completion_interruptible_timeout(
&completion, msecs_to_jiffies(timeout));
if (t < 0)
return t;
else if (t == 0)
return -ETIME;
return 0;
}
}
EXPORT_SYMBOL_GPL(apple_rtkit_send_message_wait);
int apple_rtkit_poll(struct apple_rtkit *rtk)
{
return mbox_client_peek_data(rtk->mbox_chan);

18
include/linux/soc/apple/rtkit.h
View File

@ -160,24 +160,6 @@ int apple_rtkit_start_ep(struct apple_rtkit *rtk, u8 endpoint);
int apple_rtkit_send_message(struct apple_rtkit *rtk, u8 ep, u64 message,
struct completion *completion, bool atomic);
/*
* Send a message to the given endpoint and wait until it has been submitted
* to the hardware FIFO.
* Will return zero on success and a negative error code on failure
* (e.g. -ETIME when the message couldn't be written within the given
* timeout)
*
* @rtk: RTKit reference
* @ep: target endpoint
* @message: message to be sent
* @timeout: timeout in milliseconds to allow the message transmission
* to be completed
* @atomic: if set to true this function can be called from atomic
* context.
*/
int apple_rtkit_send_message_wait(struct apple_rtkit *rtk, u8 ep, u64 message,
unsigned long timeout, bool atomic);
/*
* Process incoming messages in atomic context.
* This only guarantees that messages arrive as far as the recv_message_early