[PATCH] firewire: core: correct comment about execution context
From: Takashi Sakamoto
Date: Mon Sep 14 2026 - 18:14:43 EST
The comment for fw_address_callback_t describes the execution context,
but the callback has not been called from RCU read-side critical section
since v6.17.
Fixes: e884a8a0c573 ("firewire: core: call FCP address handlers outside RCU read-side critical section")
Fixes: e8cf6875005b ("firewire: core: call handler for exclusive regions outside RCU read-side critical section")
Signed-off-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
---
include/linux/firewire.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/linux/firewire.h b/include/linux/firewire.h
index a1e0cb4526c9..cbe59a18162e 100644
--- a/include/linux/firewire.h
+++ b/include/linux/firewire.h
@@ -299,8 +299,9 @@ union fw_transaction_callback {
};
/*
- * This callback handles an inbound request subaction. It is called in
- * RCU read-side context, therefore must not sleep.
+ * This callback handles an inbound request subaction. If the request subaction is initiated from
+ * the local node (e.g. by unit driver), the execution context depends on the initiator and is
+ * unspecified. Otherwise, it runs in workqueue context.
*
* The callback should not initiate outbound request subactions directly.
* Otherwise there is a danger of recursion of inbound and outbound
--
2.53.0