[PATCH 3/3] rpmsg: glink: Use best fit intent during tx
From: Chris Lew <hidden>
Date: 2017-10-19 01:11:48
Also in:
linux-arm-msm, lkml
Subsystem:
arm/qualcomm mailing list, remote processor messaging (rpmsg) subsystem, the rest · Maintainers:
Bjorn Andersson, Mathieu Poirier, Linus Torvalds
Intents can vary in size, try to find the best fitting remote intent instead of first fit when sending a message to the remote proc. Signed-off-by: Chris Lew <redacted> --- drivers/rpmsg/qcom_glink_native.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index 05e04a8943e3..650974f85a4c 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c@@ -1251,11 +1251,16 @@ static int __qcom_glink_send(struct glink_channel *channel, spin_lock_irqsave(&channel->intent_lock, flags); idr_for_each_entry(&channel->riids, tmp, iid) { if (tmp->size >= len && !tmp->in_use) { - tmp->in_use = true; - intent = tmp; - break; + if (!intent) + intent = tmp; + else if (intent->size > tmp->size) + intent = tmp; + if (intent->size == len) + break; } } + if (intent) + intent->in_use = true; spin_unlock_irqrestore(&channel->intent_lock, flags); /* We found an available intent */
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