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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2024-05-01 10:32:38 +0300 |
|---|---|---|
| committer | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2024-05-06 05:06:06 +0300 |
| commit | 6b0b708f12d18f9cccfb1c418bea59fcbff8798c (patch) | |
| tree | 03dc469069aa224ac65852ebad3faf1a11725f11 /drivers/firewire | |
| parent | 01d860427f67fd4b797ae616a2adb57263baeee9 (diff) | |
| download | linux-6b0b708f12d18f9cccfb1c418bea59fcbff8798c.tar.xz | |
firewire: core: add tracepoint event for handling bus reset
The core function expects hardware drivers to call
fw_core_handle_bus_reset() when changing bus topology. The 1394 OHCI
driver calls it when handling selfID event as a result of any bus-reset.
This commit adds a tracepoints event for it.
Link: https://lore.kernel.org/r/20240501073238.72769-6-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Diffstat (limited to 'drivers/firewire')
| -rw-r--r-- | drivers/firewire/core-topology.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/firewire/core-topology.c b/drivers/firewire/core-topology.c index f40c81534381..837cc44d8d9f 100644 --- a/drivers/firewire/core-topology.c +++ b/drivers/firewire/core-topology.c @@ -20,6 +20,7 @@ #include <asm/byteorder.h> #include "core.h" +#include <trace/events/firewire.h> #define SELF_ID_PHY_ID(q) (((q) >> 24) & 0x3f) #define SELF_ID_EXTENDED(q) (((q) >> 23) & 0x01) @@ -507,6 +508,8 @@ void fw_core_handle_bus_reset(struct fw_card *card, int node_id, int generation, struct fw_node *local_node; unsigned long flags; + trace_bus_reset_handle(generation, node_id, bm_abdicate, self_ids, self_id_count); + spin_lock_irqsave(&card->lock, flags); /* |