[PATCH v2 1/2] HID: uclogic: Avoid linking common code into multiple modules

From: José Expósito
Date: Fri Jun 14 2024 - 12:20:24 EST


The hid-uclogic-params.o and hid-uclogic-rdesc.o files are linked
into both the driver module and the unit test, which triggers a
W=1 warning:

scripts/Makefile.build:236: drivers/hid/Makefile: hid-uclogic-rdesc.o is added to multiple modules: hid-uclogic hid-uclogic-test
scripts/Makefile.build:236: drivers/hid/Makefile: hid-uclogic-params.o is added to multiple modules: hid-uclogic hid-uclogic-test

Avoids this by moving these two files into a separate module
that is used by the driver and the unit test.

Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: José Expósito <jose.exposito89@xxxxxxxxx>
---
drivers/hid/Makefile | 6 ++----
drivers/hid/hid-uclogic-rdesc-test.c | 2 ++
drivers/hid/hid-uclogic-rdesc.c | 2 ++
3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index ce71b53ea6c5..e40f1ddebbb7 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -154,10 +154,8 @@ obj-$(CONFIG_HID_WINWING) += hid-winwing.o
obj-$(CONFIG_HID_SENSOR_HUB) += hid-sensor-hub.o
obj-$(CONFIG_HID_SENSOR_CUSTOM_SENSOR) += hid-sensor-custom.o

-hid-uclogic-test-objs := hid-uclogic-rdesc.o \
- hid-uclogic-params.o \
- hid-uclogic-rdesc-test.o
-obj-$(CONFIG_HID_KUNIT_TEST) += hid-uclogic-test.o
+hid-uclogic-test-objs := hid-uclogic-rdesc-test.o
+obj-$(CONFIG_HID_KUNIT_TEST) += hid-uclogic.o hid-uclogic-test.o

obj-$(CONFIG_USB_HID) += usbhid/
obj-$(CONFIG_USB_MOUSE) += usbhid/
diff --git a/drivers/hid/hid-uclogic-rdesc-test.c b/drivers/hid/hid-uclogic-rdesc-test.c
index 90bf4e586e01..d6b18213f45f 100644
--- a/drivers/hid/hid-uclogic-rdesc-test.c
+++ b/drivers/hid/hid-uclogic-rdesc-test.c
@@ -9,6 +9,8 @@
#include <kunit/test.h>
#include "./hid-uclogic-rdesc.h"

+MODULE_IMPORT_NS(EXPORTED_FOR_KUNIT_TESTING);
+
struct uclogic_template_case {
const char *name;
const __u8 *template;
diff --git a/drivers/hid/hid-uclogic-rdesc.c b/drivers/hid/hid-uclogic-rdesc.c
index b6dfdf6356a6..6c7a90417569 100644
--- a/drivers/hid/hid-uclogic-rdesc.c
+++ b/drivers/hid/hid-uclogic-rdesc.c
@@ -17,6 +17,7 @@
#include "hid-uclogic-rdesc.h"
#include <linux/slab.h>
#include <asm/unaligned.h>
+#include <kunit/visibility.h>

/* Fixed WP4030U report descriptor */
__u8 uclogic_rdesc_wp4030u_fixed_arr[] = {
@@ -1242,3 +1243,4 @@ __u8 *uclogic_rdesc_template_apply(const __u8 *template_ptr,

return rdesc_ptr;
}
+EXPORT_SYMBOL_IF_KUNIT(uclogic_rdesc_template_apply);
--
2.45.2