linux-kernel - [PATCH v2] tty/sysrq: Export sysrq_mask(), sysrq_toggle

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Date:   Mon, 20 Apr 2020 18:23:17 +0100
From:   Dmitry Safonov <dima@...sta.com>
To:     linux-kernel@...r.kernel.org
Cc:     Dmitry Safonov <0x7f454c46@...il.com>,
        Dmitry Safonov <dima@...sta.com>,
        "kernelci.org bot" <bot@...nelci.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: [PATCH v2] tty/sysrq: Export sysrq_mask(), sysrq_toggle_support()

Build fix for serial_core being module:
  ERROR: modpost: "sysrq_toggle_support" [drivers/tty/serial/serial_core.ko] undefined!
  ERROR: modpost: "sysrq_mask" [drivers/tty/serial/serial_core.ko] undefined!

Fixes: eaee41727e6d ("sysctl/sysrq: Remove __sysrq_enabled copy")
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jiri Slaby <jslaby@...e.com>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>
Reported-by: "kernelci.org bot" <bot@...nelci.org>
Reported-by: Michael Ellerman <mpe@...erman.id.au>
Signed-off-by: Dmitry Safonov <dima@...sta.com>
---
v2: Also export sysrq_toggle_support()

 drivers/tty/sysrq.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 5e0d0813da55..0dc3878794fd 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -74,6 +74,7 @@ int sysrq_mask(void)
 		return 1;
 	return sysrq_enabled;
 }
+EXPORT_SYMBOL_GPL(sysrq_mask);
 
 /*
  * A value of 1 means 'all', other nonzero values are an op mask:
@@ -1058,6 +1059,7 @@ int sysrq_toggle_support(int enable_mask)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(sysrq_toggle_support);
 
 static int __sysrq_swap_key_ops(int key, struct sysrq_key_op *insert_op_p,
                                 struct sysrq_key_op *remove_op_p)
-- 
2.26.0