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-rw-r--r--drivers/hwtracing/stm/console.c1
-rw-r--r--drivers/hwtracing/stm/ftrace.c1
-rw-r--r--drivers/hwtracing/stm/heartbeat.c1
-rw-r--r--include/linux/stm.h12
4 files changed, 15 insertions, 0 deletions
diff --git a/drivers/hwtracing/stm/console.c b/drivers/hwtracing/stm/console.c
index a00f65e21747..097a00ac43a7 100644
--- a/drivers/hwtracing/stm/console.c
+++ b/drivers/hwtracing/stm/console.c
@@ -22,6 +22,7 @@ static struct stm_console {
.data = {
.name = "console",
.nr_chans = 1,
+ .type = STM_USER,
.link = stm_console_link,
.unlink = stm_console_unlink,
},
diff --git a/drivers/hwtracing/stm/ftrace.c b/drivers/hwtracing/stm/ftrace.c
index 3bb606dfa634..a7cea7ea0163 100644
--- a/drivers/hwtracing/stm/ftrace.c
+++ b/drivers/hwtracing/stm/ftrace.c
@@ -23,6 +23,7 @@ static struct stm_ftrace {
.data = {
.name = "ftrace",
.nr_chans = STM_FTRACE_NR_CHANNELS,
+ .type = STM_FTRACE,
.link = stm_ftrace_link,
.unlink = stm_ftrace_unlink,
},
diff --git a/drivers/hwtracing/stm/heartbeat.c b/drivers/hwtracing/stm/heartbeat.c
index 81d7b21d31ec..e9496fe97baa 100644
--- a/drivers/hwtracing/stm/heartbeat.c
+++ b/drivers/hwtracing/stm/heartbeat.c
@@ -78,6 +78,7 @@ static int stm_heartbeat_init(void)
}
stm_heartbeat[i].data.nr_chans = 1;
+ stm_heartbeat[i].data.type = STM_USER;
stm_heartbeat[i].data.link = stm_heartbeat_link;
stm_heartbeat[i].data.unlink = stm_heartbeat_unlink;
hrtimer_init(&stm_heartbeat[i].hrtimer, CLOCK_MONOTONIC,
diff --git a/include/linux/stm.h b/include/linux/stm.h
index 3b22689512be..2fcbef9608f6 100644
--- a/include/linux/stm.h
+++ b/include/linux/stm.h
@@ -30,6 +30,16 @@ enum stp_packet_flags {
STP_PACKET_TIMESTAMPED = 0x2,
};
+/**
+ * enum stm_source_type - STM source driver
+ * @STM_USER: any STM trace source
+ * @STM_FTRACE: ftrace STM source
+ */
+enum stm_source_type {
+ STM_USER,
+ STM_FTRACE,
+};
+
struct stp_policy;
struct stm_device;
@@ -106,6 +116,7 @@ struct stm_source_device;
* @name: device name, will be used for policy lookup
* @src: internal structure, only used by stm class code
* @nr_chans: number of channels to allocate
+ * @type: type of STM source driver represented by stm_source_type
* @link: called when this source gets linked to an STM device
* @unlink: called when this source is about to get unlinked from its STM
*
@@ -117,6 +128,7 @@ struct stm_source_data {
struct stm_source_device *src;
unsigned int percpu;
unsigned int nr_chans;
+ unsigned int type;
int (*link)(struct stm_source_data *data);
void (*unlink)(struct stm_source_data *data);
};