[PATCH 6/6] IrDA: Lockdep annotation for hashbin locks
From: Samuel Ortiz <hidden>
Date: 2007-03-14 19:32:26
Also in:
lkml
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Rmmoding irda triggers a lockdep false positive. We can fix that by assigning each hashbin lock to a separate class. Reported-by: Dave Jones <redacted> Signed-off-by: Samuel Ortiz <redacted> --- include/net/irda/irqueue.h | 1 + net/irda/irqueue.c | 1 + 2 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/net/irda/irqueue.h b/include/net/irda/irqueue.h
index 335b0ac..67cb434 100644
--- a/include/net/irda/irqueue.h
+++ b/include/net/irda/irqueue.h@@ -71,6 +71,7 @@ typedef struct hashbin_t { int hb_size; spinlock_t hb_spinlock; /* HB_LOCK - Can be used by the user */ + struct lock_class_key hb_lock_key; irda_queue_t* hb_queue[HASHBIN_SIZE] IRDA_ALIGN; irda_queue_t* hb_current;
diff --git a/net/irda/irqueue.c b/net/irda/irqueue.c
index 9266233..2871a8a 100644
--- a/net/irda/irqueue.c
+++ b/net/irda/irqueue.c@@ -370,6 +370,7 @@ hashbin_t *hashbin_new(int type) /* Make sure all spinlock's are unlocked */ if ( hashbin->hb_type & HB_LOCK ) { spin_lock_init(&hashbin->hb_spinlock); + lockdep_set_class(&hashbin->hb_spinlock, &hashbin->hb_lock_key); } return hashbin;
--
1.5.0.2
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