From 71f6a4538901f7c0a3e32d27b06933d3b3700f64 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 15 Feb 2018 16:43:59 +0100 Subject: [PATCH] 4.15-stable patches added patches: rcu-export-init_rcu_head-and-destroy_rcu_head-to-gpl-modules.patch --- ...-and-destroy_rcu_head-to-gpl-modules.patch | 44 +++++++++++++++++++ queue-4.15/series | 1 + 2 files changed, 45 insertions(+) create mode 100644 queue-4.15/rcu-export-init_rcu_head-and-destroy_rcu_head-to-gpl-modules.patch diff --git a/queue-4.15/rcu-export-init_rcu_head-and-destroy_rcu_head-to-gpl-modules.patch b/queue-4.15/rcu-export-init_rcu_head-and-destroy_rcu_head-to-gpl-modules.patch new file mode 100644 index 00000000000..6e9fa626715 --- /dev/null +++ b/queue-4.15/rcu-export-init_rcu_head-and-destroy_rcu_head-to-gpl-modules.patch @@ -0,0 +1,44 @@ +From 156baec39732f025dc778e00da95fc10d6e45885 Mon Sep 17 00:00:00 2001 +From: "Paul E. McKenney" +Date: Thu, 7 Dec 2017 09:40:38 -0800 +Subject: rcu: Export init_rcu_head() and destroy_rcu_head() to GPL modules + +From: Paul E. McKenney + +commit 156baec39732f025dc778e00da95fc10d6e45885 upstream. + +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 +Reported-by: Stephen Rothwell +Signed-off-by: Paul E. McKenney +Signed-off-by: Martin K. Petersen +Signed-off-by: Greg Kroah-Hartman + +--- + kernel/rcu/update.c | 2 ++ + 1 file changed, 2 insertions(+) + +--- 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) + { diff --git a/queue-4.15/series b/queue-4.15/series index 31c6d9ceaf0..23cf7533c95 100644 --- a/queue-4.15/series +++ b/queue-4.15/series @@ -200,3 +200,4 @@ ftrace-remove-incorrect-setting-of-glob-search-field.patch scsi-core-ensure-that-the-scsi-error-handler-gets-woken-up.patch scsi-lpfc-fix-crash-after-bad-bar-setup-on-driver-attachment.patch scsi-cxlflash-reset-command-ioasc.patch +rcu-export-init_rcu_head-and-destroy_rcu_head-to-gpl-modules.patch -- 2.47.3