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authorJohannes Berg <johannes@sipsolutions.net>2009-10-02 13:44:02 -0700
committerJohn W. Linville <linville@tuxdriver.com>2009-10-07 16:39:44 -0400
commitbe1a71a128ed91372d4ad8d54d8fd972a1a356eb (patch)
tree9c8ac5551069c0d4352d6cc06e7194acce3aca9d /drivers/net/wireless/iwlwifi/iwl-devtrace.c
parent4d80d7210bb5a36a18978d1305b44375ecb857d9 (diff)
downloadlinux-linaro-android-be1a71a128ed91372d4ad8d54d8fd972a1a356eb.tar.gz
iwlwifi: device tracing
In order to have an easier way to debug issues, create trace events (using the ftrace framework) that will allow us to follow exactly what the driver is doing with the device. The text format isn't all that useful, but the binary format can also be obtained easily via debugfs and then analysed on the fly or offline with debugging tools. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-devtrace.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-devtrace.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.c b/drivers/net/wireless/iwlwifi/iwl-devtrace.c
new file mode 100644
index 00000000000..4ef5acaa556
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.c
@@ -0,0 +1,13 @@
+#include <linux/module.h>
+
+/* sparse doesn't like tracepoint macros */
+#ifndef __CHECKER__
+#define CREATE_TRACE_POINTS
+#include "iwl-devtrace.h"
+
+EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ioread32);
+EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_iowrite32);
+EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_rx);
+EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ucode_event);
+EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ucode_error);
+#endif