linux-kernel - [PATCH 2/2] firmware: arm_scmi: remove _

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Message-Id: <20210920100301.1466486-2-arnd@kernel.org>
Date:   Mon, 20 Sep 2021 12:02:52 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Sudeep Holla <sudeep.holla@....com>,
        Igor Skalkin <igor.skalkin@...nsynergy.com>,
        Peter Hilber <peter.hilber@...nsynergy.com>,
        Cristian Marussi <cristian.marussi@....com>
Cc:     Arnd Bergmann <arnd@...db.de>, kernel test robot <lkp@...el.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] firmware: arm_scmi: remove __exit annotation

From: Arnd Bergmann <arnd@...db.de>

virtio_scmi_exit() is only called from __exit function, so the annotation
is correct, but when the driver is built-in, the section gets discarded
and the reference from a callback pointer causes a link-time error:

`virtio_scmi_exit' referenced in section `.rodata' of drivers/firmware/arm_scmi/virtio.o: defined in discarded section `.exit.text' of drivers/firmware/arm_scmi/virtio.o

I could not figure out a better workaround, so let's just remove that
annotation even if it wastes a couple of bytes in .text.

Fixes: 46abe13b5e3d ("firmware: arm_scmi: Add virtio transport")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/firmware/arm_scmi/virtio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/arm_scmi/virtio.c b/drivers/firmware/arm_scmi/virtio.c
index 224577f86928..8941bb40f2df 100644
--- a/drivers/firmware/arm_scmi/virtio.c
+++ b/drivers/firmware/arm_scmi/virtio.c
@@ -476,7 +476,7 @@ static int __init virtio_scmi_init(void)
 	return register_virtio_driver(&virtio_scmi_driver);
 }
 
-static void __exit virtio_scmi_exit(void)
+static void virtio_scmi_exit(void)
 {
 	unregister_virtio_driver(&virtio_scmi_driver);
 }
-- 
2.29.2