linux-kernel - [PATCH v7 1/2] Input: export input_default

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20260211173421.1206478-2-fabiobaltieri@chromium.org>
Date: Wed, 11 Feb 2026 17:34:20 +0000
From: Fabio Baltieri <fabiobaltieri@...omium.org>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Benson Leung <bleung@...omium.org>,
	Guenter Roeck <groeck@...omium.org>
Cc: Fabio Baltieri <fabiobaltieri@...omium.org>,
	Tzung-Bi Shih <tzungbi@...nel.org>,
	Simon Glass <sjg@...omium.org>,
	linux-input@...r.kernel.org,
	chrome-platform@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH v7 1/2] Input: export input_default_setkeycode

Export input_default_setkeycode so that a driver can set a custom
setkeycode handler to do take some driver specific action but still call
the default handler at some point.

Signed-off-by: Fabio Baltieri <fabiobaltieri@...omium.org>
---
 drivers/input/input.c | 9 ++++++---
 include/linux/input.h | 4 ++++
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index a500e1e276c2..d3a1878f25db 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -800,14 +800,16 @@ static int input_default_getkeycode(struct input_dev *dev,
 	return 0;
 }
 
-static int input_default_setkeycode(struct input_dev *dev,
-				    const struct input_keymap_entry *ke,
-				    unsigned int *old_keycode)
+int input_default_setkeycode(struct input_dev *dev,
+			     const struct input_keymap_entry *ke,
+			     unsigned int *old_keycode)
 {
 	unsigned int index;
 	int error;
 	int i;
 
+	lockdep_assert_held(&dev->event_lock);
+
 	if (!dev->keycodesize)
 		return -EINVAL;
 
@@ -861,6 +863,7 @@ static int input_default_setkeycode(struct input_dev *dev,
 	__set_bit(ke->keycode, dev->keybit);
 	return 0;
 }
+EXPORT_SYMBOL(input_default_setkeycode);
 
 /**
  * input_get_keycode - retrieve keycode currently mapped to a given scancode
diff --git a/include/linux/input.h b/include/linux/input.h
index 7d7cb0593a63..06ca62328db1 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -517,6 +517,10 @@ INPUT_GENERATE_ABS_ACCESSORS(res, resolution)
 int input_scancode_to_scalar(const struct input_keymap_entry *ke,
 			     unsigned int *scancode);
 
+int input_default_setkeycode(struct input_dev *dev,
+			     const struct input_keymap_entry *ke,
+			     unsigned int *old_keycode);
+
 int input_get_keycode(struct input_dev *dev, struct input_keymap_entry *ke);
 int input_set_keycode(struct input_dev *dev,
 		      const struct input_keymap_entry *ke);
-- 
2.53.0.239.g8d8fc8a987-goog