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Commit 81a2f9e4 authored by Chris Lew's avatar Chris Lew
Browse files

rpmsg: glink: Set tail pointer to 0 at end of FIFO 



When wrapping around the FIFO, the remote expects the tail pointer to
be reset to 0 on the edge case where the tail equals the FIFO length.

Change-Id: Ib0d2e7c3e9a3524a37792ec8cef3a2aac90e1bf6
Signed-off-by: default avatarChris Lew <clew@codeaurora.org>
parent a0d79a3b

drivers/rpmsg/qcom_glink_smem.c

+1 −1
Original line number Diff line number Diff line
@@ -116,7 +116,7 @@ static void glink_smem_rx_advance(struct qcom_glink_pipe *np, 
	tail = le32_to_cpu(*pipe->tail);



	tail += count;

	if (tail > pipe->native.length)

	if (tail >= pipe->native.length)

		tail -= pipe->native.length;



	*pipe->tail = cpu_to_le32(tail);

drivers/rpmsg/qcom_glink_spss.c

+1 −1
Original line number Diff line number Diff line
@@ -105,7 +105,7 @@ static void glink_spss_rx_advance(struct qcom_glink_pipe *np, 
	tail = le32_to_cpu(*pipe->tail);



	tail += count;

	if (tail > pipe->native.length)

	if (tail >= pipe->native.length)

		tail -= pipe->native.length;



	*pipe->tail = cpu_to_le32(tail);