Merge "mailbox: msm_qmp: Assert on timeout" (432d1461) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/mailbox/msm_qmp.c

+8 −1

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
		* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
		*/

		#include <linux/io.h>
		@@ -42,6 +42,12 @@ do { \
		ipc_log_string(ctxt, "%s[%s]: "x, "", __func__, ##__VA_ARGS__); \
		} while (0)

		#ifdef CONFIG_QMP_DEBUGFS_CLIENT
		#define QMP_BUG(x) BUG_ON(x)
		#else
		#define QMP_BUG(x) do {} while (0)
		#endif

		/**
		* enum qmp_local_state - definition of the local state machine
		* @LINK_DISCONNECTED: Init state, waiting for ucore to start
		@@ -264,6 +270,7 @@ static void qmp_notify_timeout(struct work_struct *work)
		return;
		}
		QMP_ERR(mbox->mdev->ilc, "tx timeout for %d\n", mbox->idx_in_flight);
		QMP_BUG(mbox->tx_sent);
		iowrite32(0, mbox->desc + mbox->mcore_mbox_offset);
		mbox->tx_sent = false;
		spin_unlock_irqrestore(&mbox->tx_lock, flags);