lttng-modules: fix build against v5.10+

lttng-modules doesn't currently build against the lastest 5.10-rc
versions.

Upstream lttng does have fixes for the issues, but hasn't done a
release that contains them yet. There are other patches on the
2.12.x branch, but I've skipped them for now as they aren't
necessary for 5.10 builds, and can be picked up with the next
full update.

We also bump the dev-upstream hash to make them easier to pickup
for those building from git.

(From OE-Core rev: 47201e98bb293d59c5d41986d066fd7614b914fa)

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/meta/recipes-kernel/lttng/lttng-modules/0016-fix-statedump-undefined-symbols-caused-by-incorrect-.patch b/meta/recipes-kernel/lttng/lttng-modules/0016-fix-statedump-undefined-symbols-caused-by-incorrect-.patch
new file mode 100644
index 0000000000..e848e16f59
--- /dev/null
+++ b/meta/recipes-kernel/lttng/lttng-modules/0016-fix-statedump-undefined-symbols-caused-by-incorrect-.patch
@@ -0,0 +1,55 @@
+From 31f8bf794172102e9758928b481856c4a8800a7f Mon Sep 17 00:00:00 2001
+From: He Zhe <zhe.he@windriver.com>
+Date: Mon, 23 Nov 2020 18:14:25 +0800
+Subject: [PATCH 16/19] fix: statedump: undefined symbols caused by incorrect
+ patch backport
+
+bb346792c2cb ("fix: tracepoint: Optimize using static_call() (v5.10)")
+misses three definitions and causes the following build failures.
+
+ERROR: "__tracepoint_lttng_statedump_process_net_ns" [lttng-statedump.ko] undefined!
+ERROR: "__tracepoint_lttng_statedump_process_user_ns" [lttng-statedump.ko] undefined!
+ERROR: "__tracepoint_lttng_statedump_process_uts_ns" [lttng-statedump.ko] undefined!
+
+Fixes: #1290
+
+Upstream-Status: Backport
+
+Signed-off-by: He Zhe <zhe.he@windriver.com>
+Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+---
+ lttng-statedump-impl.c | 18 ++++++++++++++++++
+ 1 file changed, 18 insertions(+)
+
+diff --git a/lttng-statedump-impl.c b/lttng-statedump-impl.c
+index 67ecd33c..cf803a73 100644
+--- a/lttng-statedump-impl.c
++++ b/lttng-statedump-impl.c
+@@ -116,6 +116,24 @@ LTTNG_DEFINE_TRACE(lttng_statedump_process_mnt_ns,
+        TP_ARGS(session, p, mnt_ns));
+ #endif
+ 
++LTTNG_DEFINE_TRACE(lttng_statedump_process_net_ns,
++       TP_PROTO(struct lttng_session *session,
++               struct task_struct *p,
++               struct net *net_ns),
++       TP_ARGS(session, p, net_ns));
++
++LTTNG_DEFINE_TRACE(lttng_statedump_process_user_ns,
++       TP_PROTO(struct lttng_session *session,
++               struct task_struct *p,
++               struct user_namespace *user_ns),
++       TP_ARGS(session, p, user_ns));
++
++LTTNG_DEFINE_TRACE(lttng_statedump_process_uts_ns,
++       TP_PROTO(struct lttng_session *session,
++               struct task_struct *p,
++               struct uts_namespace *uts_ns),
++       TP_ARGS(session, p, uts_ns));
++
+ LTTNG_DEFINE_TRACE(lttng_statedump_network_interface,
+        TP_PROTO(struct lttng_session *session,
+                struct net_device *dev, struct in_ifaddr *ifa),
+-- 
+2.19.1
+