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| author | Thomas Weißschuh <linux@weissschuh.net> | 2024-08-03 14:34:22 +0200 |
|---|---|---|
| committer | Benjamin Tissoires <bentiss@kernel.org> | 2024-08-27 16:29:55 +0200 |
| commit | fe73965d078670406acee0218f118c0870d6a58b (patch) | |
| tree | b343efa1c3955abb57b534b7c320780fac3c9c8c /drivers/hid/hid-holtek-mouse.c | |
| parent | 3593630c89d7d3963c42262694f8aa8b4727a0ad (diff) | |
| download | lwn-fe73965d078670406acee0218f118c0870d6a58b.tar.gz lwn-fe73965d078670406acee0218f118c0870d6a58b.zip | |
HID: change return type of report_fixup() to const
By allowing the drivers to return a "const *" they can constify their
static report arrays.
This makes it clear to driver authors that the HID core will not modify
those reports and they can be reused for multiple devices.
Furthermore security is slightly improved as those reports are protected
against accidental or malicious modifications.
[bentiss: fixup hid-cougar.c and hid-multitouch.c for latest version of
the master branch]
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240803-hid-const-fixup-v2-6-f53d7a7b29d8@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Diffstat (limited to 'drivers/hid/hid-holtek-mouse.c')
| -rw-r--r-- | drivers/hid/hid-holtek-mouse.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hid/hid-holtek-mouse.c b/drivers/hid/hid-holtek-mouse.c index 343730c28e2d..b618a1646c13 100644 --- a/drivers/hid/hid-holtek-mouse.c +++ b/drivers/hid/hid-holtek-mouse.c @@ -29,8 +29,8 @@ * - USB ID 04d9:a0c2, sold as ETEKCITY Scroll T-140 Gaming Mouse */ -static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc, - unsigned int *rsize) +static const __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, + __u8 *rdesc, unsigned int *rsize) { struct usb_interface *intf = to_usb_interface(hdev->dev.parent); |