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To:     Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc:     "Michael Ellerman" <mpe@ellerman.id.au>,
        "Geert Uytterhoeven" <geert@linux-m68k.org>,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Message-Id: <cb1828050f8c9ef801b2bdf79eccd6c52afed26b.1647663509.git.fthain@linux-m68k.org>
From:   Finn Thain <fthain@linux-m68k.org>
Subject: [PATCH] macintosh/via-pmu: Fix build failure when CONFIG_INPUT is
 disabled
Date:   Sat, 19 Mar 2022 15:18:29 +1100
Precedence: bulk

drivers/macintosh/via-pmu-event.o: In function `via_pmu_event':
via-pmu-event.c:(.text+0x44): undefined reference to `input_event'
via-pmu-event.c:(.text+0x68): undefined reference to `input_event'
via-pmu-event.c:(.text+0x94): undefined reference to `input_event'
via-pmu-event.c:(.text+0xb8): undefined reference to `input_event'
drivers/macintosh/via-pmu-event.o: In function `via_pmu_event_init':
via-pmu-event.c:(.init.text+0x20): undefined reference to `input_allocate_device'
via-pmu-event.c:(.init.text+0xc4): undefined reference to `input_register_device'
via-pmu-event.c:(.init.text+0xd4): undefined reference to `input_free_device'
make[1]: *** [Makefile:1155: vmlinux] Error 1
make: *** [Makefile:350: __build_one_by_one] Error 2

Don't call into the input subsystem unless CONFIG_INPUT is built-in.

Reported-by: kernel test robot <lkp@intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Finn Thain <fthain@linux-m68k.org>
---
 drivers/macintosh/Makefile  | 5 ++++-
 drivers/macintosh/via-pmu.c | 2 ++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile
index 49819b1b6f20..eaf28b1c272f 100644
--- a/drivers/macintosh/Makefile
+++ b/drivers/macintosh/Makefile
@@ -12,7 +12,10 @@ obj-$(CONFIG_MAC_EMUMOUSEBTN)	+= mac_hid.o
 obj-$(CONFIG_INPUT_ADBHID)	+= adbhid.o
 obj-$(CONFIG_ANSLCD)		+= ans-lcd.o
 
-obj-$(CONFIG_ADB_PMU)		+= via-pmu.o via-pmu-event.o
+obj-$(CONFIG_ADB_PMU)		+= via-pmu.o
+ifeq ($(CONFIG_INPUT), y)
+obj-$(CONFIG_ADB_PMU)		+= via-pmu-event.o
+endif
 obj-$(CONFIG_ADB_PMU_LED)	+= via-pmu-led.o
 obj-$(CONFIG_PMAC_BACKLIGHT)	+= via-pmu-backlight.o
 obj-$(CONFIG_ADB_CUDA)		+= via-cuda.o
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 4b98bc26a94b..55afa6dfa263 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -1457,12 +1457,14 @@ pmu_handle_data(unsigned char *data, int len)
 		if (pmu_battery_count)
 			query_battery_state();
 		pmu_pass_intr(data, len);
+#ifdef CONFIG_INPUT
 		/* len == 6 is probably a bad check. But how do I
 		 * know what PMU versions send what events here? */
 		if (len == 6) {
 			via_pmu_event(PMU_EVT_POWER, !!(data[1]&8));
 			via_pmu_event(PMU_EVT_LID, data[1]&1);
 		}
+#endif
 		break;
 
 	default:
-- 
2.32.0