From a52354173bea2224009d52ed4439932260d389fb Mon Sep 17 00:00:00 2001 From: Krishna chaitanya chundru Date: Sun, 18 Feb 2024 14:13:39 +0530 Subject: [PATCH] bus: mhi: host: Change the trace string for the userspace tools mapping User space tools can't map strings if we use directly, as the string address is internal to kernel. So add trace point strings for the user space tools to map strings properly. Suggested-by: Steven Rostedt Signed-off-by: Krishna chaitanya chundru Reviewed-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/20240218-ftrace_string-v1-1-27da85c1f844@quicinc.com Signed-off-by: Manivannan Sadhasivam --- drivers/bus/mhi/host/main.c | 4 ++-- drivers/bus/mhi/host/trace.h | 2 ++ 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/bus/mhi/host/main.c b/drivers/bus/mhi/host/main.c index 2d38f6005da65..15d657af9b5b8 100644 --- a/drivers/bus/mhi/host/main.c +++ b/drivers/bus/mhi/host/main.c @@ -1340,7 +1340,7 @@ static int mhi_update_channel_state(struct mhi_controller *mhi_cntrl, enum mhi_cmd_type cmd = MHI_CMD_NOP; int ret; - trace_mhi_channel_command_start(mhi_cntrl, mhi_chan, to_state, "Updating"); + trace_mhi_channel_command_start(mhi_cntrl, mhi_chan, to_state, TPS("Updating")); switch (to_state) { case MHI_CH_STATE_TYPE_RESET: write_lock_irq(&mhi_chan->lock); @@ -1407,7 +1407,7 @@ static int mhi_update_channel_state(struct mhi_controller *mhi_cntrl, write_unlock_irq(&mhi_chan->lock); } - trace_mhi_channel_command_end(mhi_cntrl, mhi_chan, to_state, "Updated"); + trace_mhi_channel_command_end(mhi_cntrl, mhi_chan, to_state, TPS("Updated")); exit_channel_update: mhi_cntrl->runtime_put(mhi_cntrl); mhi_device_put(mhi_cntrl->mhi_dev); diff --git a/drivers/bus/mhi/host/trace.h b/drivers/bus/mhi/host/trace.h index d12a98d442728..368515dcb22d1 100644 --- a/drivers/bus/mhi/host/trace.h +++ b/drivers/bus/mhi/host/trace.h @@ -84,6 +84,8 @@ DEV_ST_TRANSITION_LIST #define dev_st_trans(a, b) { DEV_ST_TRANSITION_##a, b }, #define dev_st_trans_end(a, b) { DEV_ST_TRANSITION_##a, b } +#define TPS(x) tracepoint_string(x) + TRACE_EVENT(mhi_gen_tre, TP_PROTO(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan, -- 2.30.2