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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-12-07 09:40:38 -0800
committerMartin K. Petersen <martin.petersen@oracle.com>2017-12-07 19:51:49 -0500
commit156baec39732f025dc778e00da95fc10d6e45885 (patch)
tree40a3d2d868b6a22f3080cd7b2d384430f4dc96b2 /kernel/rcu
parentfa576b43f66ef67d1db5730b5745c468b1f9ed2b (diff)
rcu: Export init_rcu_head() and destroy_rcu_head() to GPL modules
Use of init_rcu_head() and destroy_rcu_head() from modules results in the following build-time error with CONFIG_DEBUG_OBJECTS_RCU_HEAD=y: ERROR: "init_rcu_head" [drivers/scsi/scsi_mod.ko] undefined! ERROR: "destroy_rcu_head" [drivers/scsi/scsi_mod.ko] undefined! This commit therefore adds EXPORT_SYMBOL_GPL() for each to allow them to be used by GPL-licensed kernel modules. Reported-by: Bart Van Assche <Bart.VanAssche@wdc.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/update.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index fbd56d6e575b..68fa19a5e7bd 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -422,11 +422,13 @@ void init_rcu_head(struct rcu_head *head)
{
debug_object_init(head, &rcuhead_debug_descr);
}
+EXPORT_SYMBOL_GPL(init_rcu_head);
void destroy_rcu_head(struct rcu_head *head)
{
debug_object_free(head, &rcuhead_debug_descr);
}
+EXPORT_SYMBOL_GPL(destroy_rcu_head);
static bool rcuhead_is_static_object(void *addr)
{