From: Luca Coelho <luciano.coelho@xxxxxxxxx>
In kernel v4.19-rc1, the activate op in struct led_trigger, changed
from void to int. To solve this, add a semantic patch to insert a
wrapper function that returns void and calls the function that returns
int.
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
patches/led_activate.cocci | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
create mode 100644 patches/led_activate.cocci
diff --git a/patches/led_activate.cocci b/patches/led_activate.cocci
new file mode 100644
index 000000000000..df8211d29462
--- /dev/null
+++ b/patches/led_activate.cocci
@@ -0,0 +1,24 @@
+@act@
+identifier activate_fn, p;
+identifier m =~ "rx_led|tx_led|assoc_led|radio_led|tpt_led";
+fresh identifier activate_fn_wrap = "bp_" ## activate_fn;
+@@
+<...
++#if LINUX_VERSION_IS_GEQ(4,19,0)
+p->m.activate = activate_fn;
++#else
++p->m.activate = activate_fn_wrap;
++#endif
+...>
+
+@@
+identifier act.activate_fn;
+identifier act.activate_fn_wrap;
+@@
+int activate_fn(...) {...}
++#if LINUX_VERSION_IS_LESS(4,19,0)
++static void activate_fn_wrap(struct led_classdev *led_cdev)
++{
++ activate_fn(led_cdev);
++}
++#endif
--
2.18.0
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