From a707f85d47cad3978bef8fe90c7a79e3998e9d36 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Sat, 3 Aug 2024 14:34:17 +0200
Subject: HID: bpf: constify parameter rdesc of call_hid_bpf_rdesc_fixup()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The parameter is never modified, so mark it as const.
Also inline the return statement to avoid a type mismatch error.

This is a prerequisite for constification changes in the HID core.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240803-hid-const-fixup-v2-1-f53d7a7b29d8@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/bpf/hid_bpf_dispatch.c | 6 ++----
 include/linux/hid_bpf.h            | 2 +-
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/hid/bpf/hid_bpf_dispatch.c b/drivers/hid/bpf/hid_bpf_dispatch.c
index a272a086c950..8420c227e21b 100644
--- a/drivers/hid/bpf/hid_bpf_dispatch.c
+++ b/drivers/hid/bpf/hid_bpf_dispatch.c
@@ -148,7 +148,7 @@ out:
 }
 EXPORT_SYMBOL_GPL(dispatch_hid_bpf_output_report);
 
-u8 *call_hid_bpf_rdesc_fixup(struct hid_device *hdev, u8 *rdesc, unsigned int *size)
+u8 *call_hid_bpf_rdesc_fixup(struct hid_device *hdev, const u8 *rdesc, unsigned int *size)
 {
 	int ret;
 	struct hid_bpf_ctx_kern ctx_kern = {
@@ -179,9 +179,7 @@ u8 *call_hid_bpf_rdesc_fixup(struct hid_device *hdev, u8 *rdesc, unsigned int *s
 		*size = ret;
 	}
 
-	rdesc = krealloc(ctx_kern.data, *size, GFP_KERNEL);
-
-	return rdesc;
+	return krealloc(ctx_kern.data, *size, GFP_KERNEL);
 
  ignore_bpf:
 	kfree(ctx_kern.data);
diff --git a/include/linux/hid_bpf.h b/include/linux/hid_bpf.h
index d4d063cf63b5..6a47223e6460 100644
--- a/include/linux/hid_bpf.h
+++ b/include/linux/hid_bpf.h
@@ -212,7 +212,7 @@ int hid_bpf_connect_device(struct hid_device *hdev);
 void hid_bpf_disconnect_device(struct hid_device *hdev);
 void hid_bpf_destroy_device(struct hid_device *hid);
 int hid_bpf_device_init(struct hid_device *hid);
-u8 *call_hid_bpf_rdesc_fixup(struct hid_device *hdev, u8 *rdesc, unsigned int *size);
+u8 *call_hid_bpf_rdesc_fixup(struct hid_device *hdev, const u8 *rdesc, unsigned int *size);
 #else /* CONFIG_HID_BPF */
 static inline u8 *dispatch_hid_bpf_device_event(struct hid_device *hid, enum hid_report_type type,
 						u8 *data, u32 *size, int interrupt,
-- 
cgit 


From 6737769ca0b6bfc82df53db5fd69068902d608db Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Sat, 3 Aug 2024 14:34:18 +0200
Subject: HID: constify parameter rdesc of hid_parse_report()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The parameter is never modified, so mark it as const.

This is a prerequisite for constification changes in the HID core.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240803-hid-const-fixup-v2-2-f53d7a7b29d8@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-core.c | 2 +-
 include/linux/hid.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 988d0acbdf04..0d2cbe491708 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -946,7 +946,7 @@ static int hid_scan_report(struct hid_device *hid)
  * Allocate the device report as read by the bus driver. This function should
  * only be called from parse() in ll drivers.
  */
-int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
+int hid_parse_report(struct hid_device *hid, const __u8 *start, unsigned size)
 {
 	hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
 	if (!hid->dev_rdesc)
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 1533c9dcd3a6..e7a5d6f2f2eb 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -953,7 +953,7 @@ struct hid_device *hid_allocate_device(void);
 struct hid_report *hid_register_report(struct hid_device *device,
 				       enum hid_report_type type, unsigned int id,
 				       unsigned int application);
-int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
+int hid_parse_report(struct hid_device *hid, const __u8 *start, unsigned size);
 struct hid_report *hid_validate_values(struct hid_device *hid,
 				       enum hid_report_type type, unsigned int id,
 				       unsigned int field_index,
-- 
cgit 


From 24ddd0d7de7aaf50f537fd727f31616cb5a65a9e Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Sat, 3 Aug 2024 14:34:19 +0200
Subject: HID: constify hid_device::rdesc
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Once a report descriptor has been created by the HID core it is not
supposed to be modified anymore.
Enforce this invariant through the type system.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240803-hid-const-fixup-v2-3-f53d7a7b29d8@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 include/linux/hid.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/hid.h b/include/linux/hid.h
index e7a5d6f2f2eb..dda34d8cad19 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -602,7 +602,7 @@ struct hid_ll_driver;
 struct hid_device {							/* device report descriptor */
 	__u8 *dev_rdesc;
 	unsigned dev_rsize;
-	__u8 *rdesc;
+	const __u8 *rdesc;
 	unsigned rsize;
 	struct hid_collection *collection;				/* List of HID collections */
 	unsigned collection_size;					/* Number of allocated hid_collections */
-- 
cgit 


From 80cfb508f3fe4c7c6a567fc4aa863c9a38709cd5 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Sat, 3 Aug 2024 14:34:20 +0200
Subject: HID: constify params and return value of fetch_item()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

fetch_item() does not modify the descriptor it operates on.
As a prerequisite for the constification of hid_driver::dev_rdesc,
mark the parameters and return value of fetch_item() as const.

Also adapt the variable types in the callers to match this
constification.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240803-hid-const-fixup-v2-4-f53d7a7b29d8@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-core.c | 12 ++++++------
 include/linux/hid.h    |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 0d2cbe491708..311069588321 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -723,7 +723,7 @@ static void hid_device_release(struct device *dev)
  * items, though they are not used yet.
  */
 
-static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
+static const u8 *fetch_item(const __u8 *start, const __u8 *end, struct hid_item *item)
 {
 	u8 b;
 
@@ -880,8 +880,8 @@ static int hid_scan_report(struct hid_device *hid)
 {
 	struct hid_parser *parser;
 	struct hid_item item;
-	__u8 *start = hid->dev_rdesc;
-	__u8 *end = start + hid->dev_rsize;
+	const __u8 *start = hid->dev_rdesc;
+	const __u8 *end = start + hid->dev_rsize;
 	static int (*dispatch_type[])(struct hid_parser *parser,
 				      struct hid_item *item) = {
 		hid_scan_main,
@@ -1204,10 +1204,10 @@ int hid_open_report(struct hid_device *device)
 	struct hid_parser *parser;
 	struct hid_item item;
 	unsigned int size;
-	__u8 *start;
+	const __u8 *start;
 	__u8 *buf;
-	__u8 *end;
-	__u8 *next;
+	const __u8 *end;
+	const __u8 *next;
 	int ret;
 	int i;
 	static int (*dispatch_type[])(struct hid_parser *parser,
diff --git a/include/linux/hid.h b/include/linux/hid.h
index dda34d8cad19..502bbc6f078c 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -46,7 +46,7 @@ struct hid_item {
 	    __s16  s16;
 	    __u32  u32;
 	    __s32  s32;
-	    __u8  *longdata;
+	    const __u8  *longdata;
 	} data;
 };
 
-- 
cgit 


From 3593630c89d7d3963c42262694f8aa8b4727a0ad Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Sat, 3 Aug 2024 14:34:21 +0200
Subject: HID: constify hid_device::dev_rdesc
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Once a report descriptor has been created by the HID core it is not
supposed to be modified anymore.
Enforce this invariant through the type system.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240803-hid-const-fixup-v2-5-f53d7a7b29d8@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 include/linux/hid.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/hid.h b/include/linux/hid.h
index 502bbc6f078c..c5fb43db0f2e 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -600,7 +600,7 @@ struct hid_driver;
 struct hid_ll_driver;
 
 struct hid_device {							/* device report descriptor */
-	__u8 *dev_rdesc;
+	const __u8 *dev_rdesc;
 	unsigned dev_rsize;
 	const __u8 *rdesc;
 	unsigned rsize;
-- 
cgit 


From fe73965d078670406acee0218f118c0870d6a58b Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Sat, 3 Aug 2024 14:34:22 +0200
Subject: HID: change return type of report_fixup() to const
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

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>
---
 drivers/hid/hid-apple.c          | 2 +-
 drivers/hid/hid-asus.c           | 2 +-
 drivers/hid/hid-aureal.c         | 2 +-
 drivers/hid/hid-bigbenff.c       | 2 +-
 drivers/hid/hid-cherry.c         | 2 +-
 drivers/hid/hid-chicony.c        | 4 ++--
 drivers/hid/hid-cmedia.c         | 2 +-
 drivers/hid/hid-corsair.c        | 4 ++--
 drivers/hid/hid-cougar.c         | 4 ++--
 drivers/hid/hid-cypress.c        | 2 +-
 drivers/hid/hid-dr.c             | 4 ++--
 drivers/hid/hid-elecom.c         | 2 +-
 drivers/hid/hid-gembird.c        | 2 +-
 drivers/hid/hid-glorious.c       | 2 +-
 drivers/hid/hid-holtek-kbd.c     | 2 +-
 drivers/hid/hid-holtek-mouse.c   | 4 ++--
 drivers/hid/hid-ite.c            | 2 +-
 drivers/hid/hid-keytouch.c       | 2 +-
 drivers/hid/hid-kye.c            | 2 +-
 drivers/hid/hid-lenovo.c         | 2 +-
 drivers/hid/hid-lg.c             | 2 +-
 drivers/hid/hid-logitech-hidpp.c | 4 ++--
 drivers/hid/hid-macally.c        | 4 ++--
 drivers/hid/hid-magicmouse.c     | 4 ++--
 drivers/hid/hid-maltron.c        | 4 ++--
 drivers/hid/hid-microsoft.c      | 2 +-
 drivers/hid/hid-monterey.c       | 2 +-
 drivers/hid/hid-multitouch.c     | 2 +-
 drivers/hid/hid-nti.c            | 2 +-
 drivers/hid/hid-ortek.c          | 2 +-
 drivers/hid/hid-petalynx.c       | 2 +-
 drivers/hid/hid-prodikeys.c      | 2 +-
 drivers/hid/hid-pxrc.c           | 4 ++--
 drivers/hid/hid-redragon.c       | 2 +-
 drivers/hid/hid-saitek.c         | 2 +-
 drivers/hid/hid-samsung.c        | 2 +-
 drivers/hid/hid-semitek.c        | 4 ++--
 drivers/hid/hid-sensor-hub.c     | 2 +-
 drivers/hid/hid-sigmamicro.c     | 4 ++--
 drivers/hid/hid-sony.c           | 2 +-
 drivers/hid/hid-steelseries.c    | 4 ++--
 drivers/hid/hid-sunplus.c        | 2 +-
 drivers/hid/hid-topre.c          | 4 ++--
 drivers/hid/hid-uclogic-core.c   | 2 +-
 drivers/hid/hid-viewsonic.c      | 4 ++--
 drivers/hid/hid-vrc2.c           | 4 ++--
 drivers/hid/hid-waltop.c         | 2 +-
 drivers/hid/hid-winwing.c        | 2 +-
 drivers/hid/hid-xiaomi.c         | 4 ++--
 drivers/hid/hid-zydacron.c       | 2 +-
 include/linux/hid.h              | 2 +-
 51 files changed, 68 insertions(+), 68 deletions(-)

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index af5cf94f9dea..7e1ae2a2bcc2 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -620,7 +620,7 @@ static void apple_battery_timer_tick(struct timer_list *t)
  * MacBook JIS keyboard has wrong logical maximum
  * Magic Keyboard JIS has wrong logical maximum
  */
-static __u8 *apple_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *apple_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	struct apple_sc *asc = hid_get_drvdata(hdev);
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index a282388b7aa5..28a958bc4723 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -1119,7 +1119,7 @@ static const __u8 asus_g752_fixed_rdesc[] = {
         0x2A, 0xFF, 0x00,		/*   Usage Maximum (0xFF)       */
 };
 
-static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
diff --git a/drivers/hid/hid-aureal.c b/drivers/hid/hid-aureal.c
index cf1a562d8523..896304148a87 100644
--- a/drivers/hid/hid-aureal.c
+++ b/drivers/hid/hid-aureal.c
@@ -18,7 +18,7 @@
 
 #include "hid-ids.h"
 
-static __u8 *aureal_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *aureal_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	if (*rsize >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) {
diff --git a/drivers/hid/hid-bigbenff.c b/drivers/hid/hid-bigbenff.c
index be17af3d9c0c..a2ff60dd834c 100644
--- a/drivers/hid/hid-bigbenff.c
+++ b/drivers/hid/hid-bigbenff.c
@@ -464,7 +464,7 @@ error_hw_stop:
 	return error;
 }
 
-static __u8 *bigben_report_fixup(struct hid_device *hid, __u8 *rdesc,
+static const __u8 *bigben_report_fixup(struct hid_device *hid, __u8 *rdesc,
 	unsigned int *rsize)
 {
 	if (*rsize == PID0902_RDESC_ORIG_SIZE) {
diff --git a/drivers/hid/hid-cherry.c b/drivers/hid/hid-cherry.c
index 549c73b05b8d..a504632febfc 100644
--- a/drivers/hid/hid-cherry.c
+++ b/drivers/hid/hid-cherry.c
@@ -22,7 +22,7 @@
  * Cherry Cymotion keyboard have an invalid HID report descriptor,
  * that needs fixing before we can parse it.
  */
-static __u8 *ch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *ch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	if (*rsize >= 18 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
diff --git a/drivers/hid/hid-chicony.c b/drivers/hid/hid-chicony.c
index 99954c6b3242..5776ec2e7159 100644
--- a/drivers/hid/hid-chicony.c
+++ b/drivers/hid/hid-chicony.c
@@ -88,8 +88,8 @@ static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	return 1;
 }
 
-static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-		unsigned int *rsize)
+static const __u8 *ch_switch12_report_fixup(struct hid_device *hdev,
+		__u8 *rdesc, unsigned int *rsize)
 {
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 	
diff --git a/drivers/hid/hid-cmedia.c b/drivers/hid/hid-cmedia.c
index cab42047bc99..01009c95613c 100644
--- a/drivers/hid/hid-cmedia.c
+++ b/drivers/hid/hid-cmedia.c
@@ -199,7 +199,7 @@ static struct hid_driver cmhid_driver = {
 	.input_mapping = cmhid_input_mapping,
 };
 
-static __u8 *cmhid_hs100b_report_fixup(struct hid_device *hid, __u8 *rdesc,
+static const __u8 *cmhid_hs100b_report_fixup(struct hid_device *hid, __u8 *rdesc,
 				       unsigned int *rsize)
 {
 	if (*rsize == HS100B_RDESC_ORIG_SIZE) {
diff --git a/drivers/hid/hid-corsair.c b/drivers/hid/hid-corsair.c
index 702f50e9841d..62b99f5c3cf8 100644
--- a/drivers/hid/hid-corsair.c
+++ b/drivers/hid/hid-corsair.c
@@ -690,8 +690,8 @@ static int corsair_input_mapping(struct hid_device *dev,
  * - USB ID 1b1c:1b3e, sold as Scimitar RGB Pro Gaming mouse
  */
 
-static __u8 *corsair_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-        unsigned int *rsize)
+static const __u8 *corsair_mouse_report_fixup(struct hid_device *hdev,
+	__u8 *rdesc, unsigned int *rsize)
 {
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 
diff --git a/drivers/hid/hid-cougar.c b/drivers/hid/hid-cougar.c
index 0fa785f52707..5596dd940322 100644
--- a/drivers/hid/hid-cougar.c
+++ b/drivers/hid/hid-cougar.c
@@ -103,8 +103,8 @@ static void cougar_fix_g6_mapping(void)
 /*
  * Constant-friendly rdesc fixup for mouse interface
  */
-static __u8 *cougar_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-				 unsigned int *rsize)
+static const __u8 *cougar_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+				       unsigned int *rsize)
 {
 	if (*rsize >= 117 && rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
 	    (rdesc[115] | rdesc[116] << 8) >= HID_MAX_USAGES) {
diff --git a/drivers/hid/hid-cypress.c b/drivers/hid/hid-cypress.c
index b952b235e70a..98548201feec 100644
--- a/drivers/hid/hid-cypress.c
+++ b/drivers/hid/hid-cypress.c
@@ -67,7 +67,7 @@ static __u8 *va_logical_boundary_fixup(struct hid_device *hdev, __u8 *rdesc,
 	return rdesc;
 }
 
-static __u8 *cp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *cp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
diff --git a/drivers/hid/hid-dr.c b/drivers/hid/hid-dr.c
index c88224a96e9e..b24f9bc743e1 100644
--- a/drivers/hid/hid-dr.c
+++ b/drivers/hid/hid-dr.c
@@ -228,8 +228,8 @@ static __u8 pid0011_rdesc_fixed[] = {
 	0xC0                /*  End Collection                  */
 };
 
-static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-				unsigned int *rsize)
+static const __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+				   unsigned int *rsize)
 {
 	switch (hdev->product) {
 	case 0x0011:
diff --git a/drivers/hid/hid-elecom.c b/drivers/hid/hid-elecom.c
index 5973a3bab29f..defcf91fdd14 100644
--- a/drivers/hid/hid-elecom.c
+++ b/drivers/hid/hid-elecom.c
@@ -53,7 +53,7 @@ static void mouse_button_fixup(struct hid_device *hdev,
 	rdesc[padding_bit + 1] = MOUSE_BUTTONS_MAX - nbuttons;
 }
 
-static __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	switch (hdev->product) {
diff --git a/drivers/hid/hid-gembird.c b/drivers/hid/hid-gembird.c
index c42593fe7116..20a8de766e56 100644
--- a/drivers/hid/hid-gembird.c
+++ b/drivers/hid/hid-gembird.c
@@ -57,7 +57,7 @@ static const __u8 gembird_jpd_fixed_rdesc[] = {
 	0x81, 0x02,			/*   Input (Data,Var,Abs)	*/
 };
 
-static __u8 *gembird_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *gembird_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	__u8 *new_rdesc;
diff --git a/drivers/hid/hid-glorious.c b/drivers/hid/hid-glorious.c
index 281b3a7187ce..5bbd81248053 100644
--- a/drivers/hid/hid-glorious.c
+++ b/drivers/hid/hid-glorious.c
@@ -26,7 +26,7 @@ MODULE_DESCRIPTION("HID driver for Glorious PC Gaming Race mice");
  * keyboard HID report, causing keycodes to be misinterpreted.
  * Fix this by setting Usage Minimum to 0 in that report.
  */
-static __u8 *glorious_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *glorious_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	if (*rsize == 213 &&
diff --git a/drivers/hid/hid-holtek-kbd.c b/drivers/hid/hid-holtek-kbd.c
index 1f014ac54e14..794d609c2e31 100644
--- a/drivers/hid/hid-holtek-kbd.c
+++ b/drivers/hid/hid-holtek-kbd.c
@@ -102,7 +102,7 @@ static __u8 holtek_kbd_rdesc_fixed[] = {
 	0xC0,               /*  End Collection                                */
 };
 
-static __u8 *holtek_kbd_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *holtek_kbd_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
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);
 
diff --git a/drivers/hid/hid-ite.c b/drivers/hid/hid-ite.c
index 6a7281bc27c9..8e42780a2663 100644
--- a/drivers/hid/hid-ite.c
+++ b/drivers/hid/hid-ite.c
@@ -13,7 +13,7 @@
 
 #define QUIRK_TOUCHPAD_ON_OFF_REPORT		BIT(0)
 
-static __u8 *ite_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize)
+static const __u8 *ite_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize)
 {
 	unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
 
diff --git a/drivers/hid/hid-keytouch.c b/drivers/hid/hid-keytouch.c
index a972943baaea..6e3033bb80dd 100644
--- a/drivers/hid/hid-keytouch.c
+++ b/drivers/hid/hid-keytouch.c
@@ -24,7 +24,7 @@ static __u8 keytouch_fixed_rdesc[] = {
 0x26, 0xff, 0x00, 0x05, 0x07, 0x19, 0x00, 0x2a, 0xff, 0x00, 0x81, 0x00, 0xc0
 };
 
-static __u8 *keytouch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *keytouch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	hid_info(hdev, "fixing up Keytouch IEC report descriptor\n");
diff --git a/drivers/hid/hid-kye.c b/drivers/hid/hid-kye.c
index ca2ba3da2458..32344331282f 100644
--- a/drivers/hid/hid-kye.c
+++ b/drivers/hid/hid-kye.c
@@ -466,7 +466,7 @@ static __u8 *kye_tablet_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int
 	return rdesc;
 }
 
-static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	switch (hdev->product) {
diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c
index e5e72aa5260a..3b0c779ce8f7 100644
--- a/drivers/hid/hid-lenovo.c
+++ b/drivers/hid/hid-lenovo.c
@@ -133,7 +133,7 @@ static const __u8 lenovo_tpIIbtkbd_need_fixup_collection[] = {
 	0x81, 0x01,		/*   Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
 };
 
-static __u8 *lenovo_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *lenovo_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	switch (hdev->product) {
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index cfe2f4f6e93f..a9be918e2b5c 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -427,7 +427,7 @@ static __u8 fg_rdesc_fixed[] = {
  * above the logical maximum described in descriptor. This extends
  * the original value of 0x28c of logical maximum to 0x104d
  */
-static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 400d70e6dbe2..0e33fa0eb8db 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -3767,8 +3767,8 @@ static int hidpp_initialize_hires_scroll(struct hidpp_device *hidpp)
 /* Generic HID++ devices                                                      */
 /* -------------------------------------------------------------------------- */
 
-static u8 *hidpp_report_fixup(struct hid_device *hdev, u8 *rdesc,
-			      unsigned int *rsize)
+static const u8 *hidpp_report_fixup(struct hid_device *hdev, u8 *rdesc,
+				    unsigned int *rsize)
 {
 	struct hidpp_device *hidpp = hid_get_drvdata(hdev);
 
diff --git a/drivers/hid/hid-macally.c b/drivers/hid/hid-macally.c
index aea46e522008..fe7576458afa 100644
--- a/drivers/hid/hid-macally.c
+++ b/drivers/hid/hid-macally.c
@@ -18,8 +18,8 @@ MODULE_LICENSE("GPL");
  * The Macally ikey keyboard says that its logical and usage maximums are both
  * 101, but the power key is 102 and the equals key is 103
  */
-static __u8 *macally_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-				 unsigned int *rsize)
+static const __u8 *macally_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+					unsigned int *rsize)
 {
 	if (*rsize >= 60 && rdesc[53] == 0x65 && rdesc[59] == 0x65) {
 		hid_info(hdev,
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index 2eb285b97fc0..8a73b59e0827 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -907,8 +907,8 @@ static void magicmouse_remove(struct hid_device *hdev)
 	hid_hw_stop(hdev);
 }
 
-static __u8 *magicmouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-				     unsigned int *rsize)
+static const __u8 *magicmouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+					   unsigned int *rsize)
 {
 	/*
 	 * Change the usage from:
diff --git a/drivers/hid/hid-maltron.c b/drivers/hid/hid-maltron.c
index caba0def938c..374c64dd82c2 100644
--- a/drivers/hid/hid-maltron.c
+++ b/drivers/hid/hid-maltron.c
@@ -137,8 +137,8 @@ static u8 maltron_rdesc[] = {
 	0xC0               /* End Collection                     */
 };
 
-static __u8 *maltron_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-				  unsigned int *rsize)
+static const __u8 *maltron_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+					unsigned int *rsize)
 {
 	if (*rsize == sizeof(maltron_rdesc_o) &&
 	    !memcmp(maltron_rdesc_o, rdesc, sizeof(maltron_rdesc_o))) {
diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c
index 4cf0fcddb379..18ac21c0bcb2 100644
--- a/drivers/hid/hid-microsoft.c
+++ b/drivers/hid/hid-microsoft.c
@@ -56,7 +56,7 @@ struct xb1s_ff_report {
 	__u8	loop_count;
 } __packed;
 
-static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	struct ms_data *ms = hid_get_drvdata(hdev);
diff --git a/drivers/hid/hid-monterey.c b/drivers/hid/hid-monterey.c
index 989681f73d77..3089be990afe 100644
--- a/drivers/hid/hid-monterey.c
+++ b/drivers/hid/hid-monterey.c
@@ -18,7 +18,7 @@
 
 #include "hid-ids.h"
 
-static __u8 *mr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *mr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	if (*rsize >= 31 && rdesc[29] == 0x05 && rdesc[30] == 0x09) {
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 99812c0f830b..5d4e916166c1 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1441,7 +1441,7 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
 	return 0;
 }
 
-static __u8 *mt_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *mt_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 			     unsigned int *size)
 {
 	if (hdev->vendor == I2C_VENDOR_ID_GOODIX &&
diff --git a/drivers/hid/hid-nti.c b/drivers/hid/hid-nti.c
index 1952e9ca5f45..03f7dd491228 100644
--- a/drivers/hid/hid-nti.c
+++ b/drivers/hid/hid-nti.c
@@ -29,7 +29,7 @@ MODULE_DESCRIPTION("HID driver for Network Technologies USB-SUN keyboard adapter
 /*
  * NTI Sun keyboard adapter has wrong logical maximum in report descriptor
  */
-static __u8 *nti_usbsun_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *nti_usbsun_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	if (*rsize >= 60 && rdesc[53] == 0x65 && rdesc[59] == 0x65) {
diff --git a/drivers/hid/hid-ortek.c b/drivers/hid/hid-ortek.c
index 99e3b06a8331..f27297269a7f 100644
--- a/drivers/hid/hid-ortek.c
+++ b/drivers/hid/hid-ortek.c
@@ -22,7 +22,7 @@
 
 #include "hid-ids.h"
 
-static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
diff --git a/drivers/hid/hid-petalynx.c b/drivers/hid/hid-petalynx.c
index 5e47634bb07d..1a986f077ce1 100644
--- a/drivers/hid/hid-petalynx.c
+++ b/drivers/hid/hid-petalynx.c
@@ -19,7 +19,7 @@
 #include "hid-ids.h"
 
 /* Petalynx Maxter Remote has maximum for consumer page set too low */
-static __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	if (*rsize >= 62 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c
index 757361593e52..3d08c190a935 100644
--- a/drivers/hid/hid-prodikeys.c
+++ b/drivers/hid/hid-prodikeys.c
@@ -728,7 +728,7 @@ static int pcmidi_snd_terminate(struct pcmidi_snd *pm)
 /*
  * PC-MIDI report descriptor for report id is wrong.
  */
-static __u8 *pk_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *pk_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	if (*rsize == 178 &&
diff --git a/drivers/hid/hid-pxrc.c b/drivers/hid/hid-pxrc.c
index b0e517f9cde7..ef38730e78ab 100644
--- a/drivers/hid/hid-pxrc.c
+++ b/drivers/hid/hid-pxrc.c
@@ -42,8 +42,8 @@ static __u8 pxrc_rdesc_fixed[] = {
 	0xC0,              // End Collection
 };
 
-static __u8 *pxrc_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-				unsigned int *rsize)
+static const __u8 *pxrc_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+				     unsigned int *rsize)
 {
 	hid_info(hdev, "fixing up PXRC report descriptor\n");
 	*rsize = sizeof(pxrc_rdesc_fixed);
diff --git a/drivers/hid/hid-redragon.c b/drivers/hid/hid-redragon.c
index 07d803513f27..20d28ed75c1e 100644
--- a/drivers/hid/hid-redragon.c
+++ b/drivers/hid/hid-redragon.c
@@ -33,7 +33,7 @@
  * key codes are generated.
  */
 
-static __u8 *redragon_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *redragon_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	unsigned int *rsize)
 {
 	if (*rsize >= 102 && rdesc[100] == 0x81 && rdesc[101] == 0x00) {
diff --git a/drivers/hid/hid-saitek.c b/drivers/hid/hid-saitek.c
index 85ac8def368f..6fe7c087c594 100644
--- a/drivers/hid/hid-saitek.c
+++ b/drivers/hid/hid-saitek.c
@@ -66,7 +66,7 @@ static int saitek_probe(struct hid_device *hdev,
 	return 0;
 }
 
-static __u8 *saitek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *saitek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	struct saitek_sc *ssc = hid_get_drvdata(hdev);
diff --git a/drivers/hid/hid-samsung.c b/drivers/hid/hid-samsung.c
index d4e27142245c..f3908a9e04e6 100644
--- a/drivers/hid/hid-samsung.c
+++ b/drivers/hid/hid-samsung.c
@@ -469,7 +469,7 @@ static int samsung_universal_kbd_input_mapping(struct hid_device *hdev,
 	return 1;
 }
 
-static __u8 *samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	unsigned int *rsize)
 {
 	if (hdev->product == USB_DEVICE_ID_SAMSUNG_IR_REMOTE && hid_is_usb(hdev))
diff --git a/drivers/hid/hid-semitek.c b/drivers/hid/hid-semitek.c
index 710766f6839d..4fbec5fd87ce 100644
--- a/drivers/hid/hid-semitek.c
+++ b/drivers/hid/hid-semitek.c
@@ -11,8 +11,8 @@
 
 #include "hid-ids.h"
 
-static __u8 *semitek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                                  unsigned int *rsize)
+static const __u8 *semitek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+					unsigned int *rsize)
 {
 	/* In the report descriptor for interface 2, fix the incorrect
 	   description of report ID 0x04 (the report contains a
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 26e93a331a51..7bd86eef6ec7 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -580,7 +580,7 @@ void sensor_hub_device_close(struct hid_sensor_hub_device *hsdev)
 }
 EXPORT_SYMBOL_GPL(sensor_hub_device_close);
 
-static __u8 *sensor_hub_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *sensor_hub_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	/*
diff --git a/drivers/hid/hid-sigmamicro.c b/drivers/hid/hid-sigmamicro.c
index 2e7058ac0e9d..c87276d7ba0d 100644
--- a/drivers/hid/hid-sigmamicro.c
+++ b/drivers/hid/hid-sigmamicro.c
@@ -99,8 +99,8 @@ static const __u8 sm_0059_rdesc[] = {
 	0xc0,                    /* End Collection                      166 */
 };
 
-static __u8 *sm_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-			     unsigned int *rsize)
+static const __u8 *sm_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+				   unsigned int *rsize)
 {
 	if (*rsize == sizeof(sm_0059_rdesc) &&
 	    !memcmp(sm_0059_rdesc, rdesc, *rsize)) {
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index eac75f98f08a..8e2e914bd236 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -743,7 +743,7 @@ static int sixaxis_mapping(struct hid_device *hdev, struct hid_input *hi,
 	return -1;
 }
 
-static u8 *sony_report_fixup(struct hid_device *hdev, u8 *rdesc,
+static const u8 *sony_report_fixup(struct hid_device *hdev, u8 *rdesc,
 		unsigned int *rsize)
 {
 	struct sony_sc *sc = hid_get_drvdata(hdev);
diff --git a/drivers/hid/hid-steelseries.c b/drivers/hid/hid-steelseries.c
index 2154e14f55f1..895da49e8ead 100644
--- a/drivers/hid/hid-steelseries.c
+++ b/drivers/hid/hid-steelseries.c
@@ -570,8 +570,8 @@ static void steelseries_remove(struct hid_device *hdev)
 	hid_hw_stop(hdev);
 }
 
-static __u8 *steelseries_srws1_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-		unsigned int *rsize)
+static const __u8 *steelseries_srws1_report_fixup(struct hid_device *hdev,
+		__u8 *rdesc, unsigned int *rsize)
 {
 	if (hdev->vendor != USB_VENDOR_ID_STEELSERIES ||
 	    hdev->product != USB_DEVICE_ID_STEELSERIES_SRWS1)
diff --git a/drivers/hid/hid-sunplus.c b/drivers/hid/hid-sunplus.c
index f32e60d4420f..64e4cff8ca1d 100644
--- a/drivers/hid/hid-sunplus.c
+++ b/drivers/hid/hid-sunplus.c
@@ -18,7 +18,7 @@
 
 #include "hid-ids.h"
 
-static __u8 *sp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *sp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	if (*rsize >= 112 && rdesc[104] == 0x26 && rdesc[105] == 0x80 &&
diff --git a/drivers/hid/hid-topre.c b/drivers/hid/hid-topre.c
index d1d5ca310ead..848361f6225d 100644
--- a/drivers/hid/hid-topre.c
+++ b/drivers/hid/hid-topre.c
@@ -21,8 +21,8 @@ MODULE_LICENSE("GPL");
  * events it's actually sending. It claims to send array events but is instead
  * sending variable events.
  */
-static __u8 *topre_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-				 unsigned int *rsize)
+static const __u8 *topre_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+				      unsigned int *rsize)
 {
 	if (*rsize >= 119 && rdesc[69] == 0x29 && rdesc[70] == 0xe7 &&
 						 rdesc[71] == 0x81 && rdesc[72] == 0x00) {
diff --git a/drivers/hid/hid-uclogic-core.c b/drivers/hid/hid-uclogic-core.c
index b176f9c0dd52..f6a1572b3728 100644
--- a/drivers/hid/hid-uclogic-core.c
+++ b/drivers/hid/hid-uclogic-core.c
@@ -50,7 +50,7 @@ static void uclogic_inrange_timeout(struct timer_list *t)
 	input_sync(input);
 }
 
-static __u8 *uclogic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *uclogic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 					unsigned int *rsize)
 {
 	struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
diff --git a/drivers/hid/hid-viewsonic.c b/drivers/hid/hid-viewsonic.c
index 668c2adb77b6..86f41e3fcb95 100644
--- a/drivers/hid/hid-viewsonic.c
+++ b/drivers/hid/hid-viewsonic.c
@@ -70,8 +70,8 @@ static __u8 pd1011_rdesc_fixed[] = {
 	0xC0                    /*  End Collection                      */
 };
 
-static __u8 *viewsonic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-				    unsigned int *rsize)
+static const __u8 *viewsonic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+					  unsigned int *rsize)
 {
 	switch (hdev->product) {
 	case USB_DEVICE_ID_VIEWSONIC_PD1011:
diff --git a/drivers/hid/hid-vrc2.c b/drivers/hid/hid-vrc2.c
index 80a2b7ef5e66..9a4840b524ba 100644
--- a/drivers/hid/hid-vrc2.c
+++ b/drivers/hid/hid-vrc2.c
@@ -38,8 +38,8 @@ static __u8 vrc2_rdesc_fixed[] = {
 	0xC0,              // End Collection
 };
 
-static __u8 *vrc2_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-				unsigned int *rsize)
+static const __u8 *vrc2_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+				     unsigned int *rsize)
 {
 	hid_info(hdev, "fixing up VRC-2 report descriptor\n");
 	*rsize = sizeof(vrc2_rdesc_fixed);
diff --git a/drivers/hid/hid-waltop.c b/drivers/hid/hid-waltop.c
index 1e590c61eef5..137a682ef5fb 100644
--- a/drivers/hid/hid-waltop.c
+++ b/drivers/hid/hid-waltop.c
@@ -599,7 +599,7 @@ static __u8 sirius_battery_free_tablet_rdesc_fixed[] = {
 	0xC0                /*  End Collection                      */
 };
 
-static __u8 *waltop_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *waltop_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	switch (hdev->product) {
diff --git a/drivers/hid/hid-winwing.c b/drivers/hid/hid-winwing.c
index 10a5d87ccb96..86b64c0ced12 100644
--- a/drivers/hid/hid-winwing.c
+++ b/drivers/hid/hid-winwing.c
@@ -165,7 +165,7 @@ static __u8 original_rdesc_buttons[] = {
  * This module skips numbers 32-63, unused on some throttle grips.
  */
 
-static __u8 *winwing_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *winwing_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	int sig_length = sizeof(original_rdesc_buttons);
diff --git a/drivers/hid/hid-xiaomi.c b/drivers/hid/hid-xiaomi.c
index a97a90afad33..035733fce2e1 100644
--- a/drivers/hid/hid-xiaomi.c
+++ b/drivers/hid/hid-xiaomi.c
@@ -61,8 +61,8 @@ static __u8 mi_silent_mouse_rdesc_fixed[] = {
 	0xC0                /*  End Collection                      */
 };
 
-static __u8 *xiaomi_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-				 unsigned int *rsize)
+static const __u8 *xiaomi_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+				       unsigned int *rsize)
 {
 	switch (hdev->product) {
 	case USB_DEVICE_ID_MI_SILENT_MOUSE:
diff --git a/drivers/hid/hid-zydacron.c b/drivers/hid/hid-zydacron.c
index 998a3db19c1f..3bdb26f45592 100644
--- a/drivers/hid/hid-zydacron.c
+++ b/drivers/hid/hid-zydacron.c
@@ -24,7 +24,7 @@ struct zc_device {
 * Zydacron remote control has an invalid HID report descriptor,
 * that needs fixing before we can parse it.
 */
-static __u8 *zc_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static const __u8 *zc_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	unsigned int *rsize)
 {
 	if (*rsize >= 253 &&
diff --git a/include/linux/hid.h b/include/linux/hid.h
index c5fb43db0f2e..3a998fa3812d 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -822,7 +822,7 @@ struct hid_driver {
 			struct hid_usage *usage, __s32 value);
 	void (*report)(struct hid_device *hdev, struct hid_report *report);
 
-	__u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf,
+	const __u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf,
 			unsigned int *size);
 
 	int (*input_mapping)(struct hid_device *hdev,
-- 
cgit 


From e6de161b5ab4315405f4001736c25a070def61c7 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Sat, 3 Aug 2024 14:34:23 +0200
Subject: HID: cmedia: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The HID core now allows static report descriptors to be read-only,
make use of it.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240803-hid-const-fixup-v2-7-f53d7a7b29d8@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-cmedia.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-cmedia.c b/drivers/hid/hid-cmedia.c
index 01009c95613c..528d7f361215 100644
--- a/drivers/hid/hid-cmedia.c
+++ b/drivers/hid/hid-cmedia.c
@@ -26,7 +26,7 @@ MODULE_LICENSE("GPL");
 /* Fixed report descriptor of HS-100B audio chip
  * Bit 4 is an abolute Microphone mute usage instead of being unassigned.
  */
-static __u8 hs100b_rdesc_fixed[] = {
+static const __u8 hs100b_rdesc_fixed[] = {
 	0x05, 0x0C,         /*  Usage Page (Consumer),          */
 	0x09, 0x01,         /*  Usage (Consumer Control),       */
 	0xA1, 0x01,         /*  Collection (Application),       */
@@ -204,8 +204,8 @@ static const __u8 *cmhid_hs100b_report_fixup(struct hid_device *hid, __u8 *rdesc
 {
 	if (*rsize == HS100B_RDESC_ORIG_SIZE) {
 		hid_info(hid, "Fixing CMedia HS-100B report descriptor\n");
-		rdesc = hs100b_rdesc_fixed;
 		*rsize = sizeof(hs100b_rdesc_fixed);
+		return hs100b_rdesc_fixed;
 	}
 	return rdesc;
 }
-- 
cgit 


From c1f9eff7b270861005c7ec8146b6ad398c40940b Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Sun, 4 Aug 2024 18:29:37 +0200
Subject: HID: winwing: constify read-only structs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

These structs are never modified, so mark them as const.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240804-hid-const-winwing-v1-1-5a6c714753b1@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-winwing.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-winwing.c b/drivers/hid/hid-winwing.c
index 86b64c0ced12..831b760c66ea 100644
--- a/drivers/hid/hid-winwing.c
+++ b/drivers/hid/hid-winwing.c
@@ -27,7 +27,7 @@ struct winwing_led_info {
 	const char *led_name;
 };
 
-static struct winwing_led_info led_info[3] = {
+static const struct winwing_led_info led_info[3] = {
 	{ 0, 255, "backlight" },
 	{ 1, 1, "a-a" },
 	{ 2, 1, "a-g" },
@@ -94,7 +94,7 @@ static int winwing_init_led(struct hid_device *hdev,
 		return -ENOMEM;
 
 	for (i = 0; i < 3; i += 1) {
-		struct winwing_led_info *info = &led_info[i];
+		const struct winwing_led_info *info = &led_info[i];
 
 		led = &data->leds[i];
 		led->hdev = hdev;
@@ -150,7 +150,7 @@ static int winwing_input_configured(struct hid_device *hdev,
 	return ret;
 }
 
-static __u8 original_rdesc_buttons[] = {
+static const __u8 original_rdesc_buttons[] = {
 	0x05, 0x09, 0x19, 0x01, 0x29, 0x6F,
 	0x15, 0x00, 0x25, 0x01, 0x35, 0x00,
 	0x45, 0x01, 0x75, 0x01, 0x95, 0x6F,
-- 
cgit 


From 00f6f65bd1162dee2e30ef11864892afcbbf2352 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:20 +0200
Subject: HID: bigbenff: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-1-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-bigbenff.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-bigbenff.c b/drivers/hid/hid-bigbenff.c
index a2ff60dd834c..9f05465358d9 100644
--- a/drivers/hid/hid-bigbenff.c
+++ b/drivers/hid/hid-bigbenff.c
@@ -99,7 +99,7 @@
  * - map previously unused analog trigger data to Z/RZ
  * - simplify feature and output descriptor
  */
-static __u8 pid0902_rdesc_fixed[] = {
+static const __u8 pid0902_rdesc_fixed[] = {
 	0x05, 0x01,        /* Usage Page (Generic Desktop Ctrls) */
 	0x09, 0x05,        /* Usage (Game Pad) */
 	0xA1, 0x01,        /* Collection (Application) */
@@ -468,8 +468,8 @@ static const __u8 *bigben_report_fixup(struct hid_device *hid, __u8 *rdesc,
 	unsigned int *rsize)
 {
 	if (*rsize == PID0902_RDESC_ORIG_SIZE) {
-		rdesc = pid0902_rdesc_fixed;
 		*rsize = sizeof(pid0902_rdesc_fixed);
+		return pid0902_rdesc_fixed;
 	} else
 		hid_warn(hid, "unexpected rdesc, please submit for review\n");
 	return rdesc;
-- 
cgit 


From 49e00b5ca0bbf26cc0c7ff22415ede58b71937f3 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:21 +0200
Subject: HID: dr: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-2-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-dr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-dr.c b/drivers/hid/hid-dr.c
index b24f9bc743e1..84e1e90a266b 100644
--- a/drivers/hid/hid-dr.c
+++ b/drivers/hid/hid-dr.c
@@ -199,7 +199,7 @@ static inline int drff_init(struct hid_device *hid)
 #define PID0011_RDESC_ORIG_SIZE	101
 
 /* Fixed report descriptor for PID 0x011 joystick */
-static __u8 pid0011_rdesc_fixed[] = {
+static const __u8 pid0011_rdesc_fixed[] = {
 	0x05, 0x01,         /*  Usage Page (Desktop),           */
 	0x09, 0x04,         /*  Usage (Joystick),               */
 	0xA1, 0x01,         /*  Collection (Application),       */
@@ -234,8 +234,8 @@ static const __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	switch (hdev->product) {
 	case 0x0011:
 		if (*rsize == PID0011_RDESC_ORIG_SIZE) {
-			rdesc = pid0011_rdesc_fixed;
 			*rsize = sizeof(pid0011_rdesc_fixed);
+			return pid0011_rdesc_fixed;
 		}
 		break;
 	}
-- 
cgit 


From 3ce7edfa4f096a6e6c802bc3c6b04b1d691a2612 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:22 +0200
Subject: HID: holtek-kbd: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-3-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-holtek-kbd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-holtek-kbd.c b/drivers/hid/hid-holtek-kbd.c
index 794d609c2e31..d13543517a6c 100644
--- a/drivers/hid/hid-holtek-kbd.c
+++ b/drivers/hid/hid-holtek-kbd.c
@@ -27,7 +27,7 @@
  * to the boot interface.
  */
 
-static __u8 holtek_kbd_rdesc_fixed[] = {
+static const __u8 holtek_kbd_rdesc_fixed[] = {
 	/* Original report descriptor, with reduced number of consumer usages */
 	0x05, 0x01,         /*  Usage Page (Desktop),                         */
 	0x09, 0x80,         /*  Usage (Sys Control),                          */
@@ -108,8 +108,8 @@ static const __u8 *holtek_kbd_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 
 	if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
-		rdesc = holtek_kbd_rdesc_fixed;
 		*rsize = sizeof(holtek_kbd_rdesc_fixed);
+		return holtek_kbd_rdesc_fixed;
 	}
 	return rdesc;
 }
-- 
cgit 


From b299944af770e36cf5e04e908ca056b72d6f6b90 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:23 +0200
Subject: HID: keytouch: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-4-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-keytouch.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/hid/hid-keytouch.c b/drivers/hid/hid-keytouch.c
index 6e3033bb80dd..b9abd53a5864 100644
--- a/drivers/hid/hid-keytouch.c
+++ b/drivers/hid/hid-keytouch.c
@@ -16,7 +16,7 @@
 
 /* Replace the broken report descriptor of this device with rather
  * a default one */
-static __u8 keytouch_fixed_rdesc[] = {
+static const __u8 keytouch_fixed_rdesc[] = {
 0x05, 0x01, 0x09, 0x06, 0xa1, 0x01, 0x05, 0x07, 0x19, 0xe0, 0x29, 0xe7, 0x15,
 0x00, 0x25, 0x01, 0x75, 0x01, 0x95, 0x08, 0x81, 0x02, 0x95, 0x01, 0x75, 0x08,
 0x81, 0x01, 0x95, 0x03, 0x75, 0x01, 0x05, 0x08, 0x19, 0x01, 0x29, 0x03, 0x91,
@@ -29,10 +29,8 @@ static const __u8 *keytouch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 {
 	hid_info(hdev, "fixing up Keytouch IEC report descriptor\n");
 
-	rdesc = keytouch_fixed_rdesc;
 	*rsize = sizeof(keytouch_fixed_rdesc);
-
-	return rdesc;
+	return keytouch_fixed_rdesc;
 }
 
 static const struct hid_device_id keytouch_devices[] = {
-- 
cgit 


From d8b21af666013ae275675a101facaf1222719203 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:24 +0200
Subject: HID: maltron: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-5-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-maltron.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-maltron.c b/drivers/hid/hid-maltron.c
index 374c64dd82c2..f0aad1ba2e6d 100644
--- a/drivers/hid/hid-maltron.c
+++ b/drivers/hid/hid-maltron.c
@@ -22,7 +22,7 @@
 #include "hid-ids.h"
 
 /* The original buggy USB descriptor */
-static u8 maltron_rdesc_o[] = {
+static const u8 maltron_rdesc_o[] = {
 	0x05, 0x01,        /* Usage Page (Generic Desktop Ctrls) */
 	0x09, 0x80,        /* Usage (Sys Control)                */
 	0xA1, 0x01,        /* Collection (Application)           */
@@ -79,7 +79,7 @@ static u8 maltron_rdesc_o[] = {
 };
 
 /* The patched descriptor, allowing media key events to be accepted as valid */
-static u8 maltron_rdesc[] = {
+static const u8 maltron_rdesc[] = {
 	0x05, 0x01,        /* Usage Page (Generic Desktop Ctrls) */
 	0x09, 0x80,        /* Usage (Sys Control)                */
 	0xA1, 0x01,        /* Collection (Application)           */
-- 
cgit 


From c06df4c57af89f07713adc7088ad875409a91462 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:25 +0200
Subject: HID: xiaomi: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-6-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-xiaomi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-xiaomi.c b/drivers/hid/hid-xiaomi.c
index 035733fce2e1..ef6598550a40 100644
--- a/drivers/hid/hid-xiaomi.c
+++ b/drivers/hid/hid-xiaomi.c
@@ -14,7 +14,7 @@
 /* Fixed Mi Silent Mouse report descriptor */
 /* Button's Usage Maximum changed from 3 to 5 to make side buttons work */
 #define MI_SILENT_MOUSE_ORIG_RDESC_LENGTH   87
-static __u8 mi_silent_mouse_rdesc_fixed[] = {
+static const __u8 mi_silent_mouse_rdesc_fixed[] = {
 	0x05, 0x01,         /*  Usage Page (Desktop),               */
 	0x09, 0x02,         /*  Usage (Mouse),                      */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -68,8 +68,8 @@ static const __u8 *xiaomi_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	case USB_DEVICE_ID_MI_SILENT_MOUSE:
 		if (*rsize == MI_SILENT_MOUSE_ORIG_RDESC_LENGTH) {
 			hid_info(hdev, "fixing up Mi Silent Mouse report descriptor\n");
-			rdesc = mi_silent_mouse_rdesc_fixed;
 			*rsize = sizeof(mi_silent_mouse_rdesc_fixed);
+			return mi_silent_mouse_rdesc_fixed;
 		}
 		break;
 	}
-- 
cgit 


From 49cf20b878faf1678b25cbc26df6f0e6bff372f6 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:26 +0200
Subject: HID: vrc2: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-7-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-vrc2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-vrc2.c b/drivers/hid/hid-vrc2.c
index 9a4840b524ba..7dc41e92f488 100644
--- a/drivers/hid/hid-vrc2.c
+++ b/drivers/hid/hid-vrc2.c
@@ -16,7 +16,7 @@
 #define USB_VENDOR_ID_VRC2	(0x07c0)
 #define USB_DEVICE_ID_VRC2	(0x1125)
 
-static __u8 vrc2_rdesc_fixed[] = {
+static const __u8 vrc2_rdesc_fixed[] = {
 	0x05, 0x01,        // Usage Page (Generic Desktop Ctrls)
 	0x09, 0x04,        // Usage (Joystick)
 	0xA1, 0x01,        // Collection (Application)
-- 
cgit 


From 4f3ff3a275f9ab016cde5561bc1b53c581fc8734 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:27 +0200
Subject: HID: viewsonic: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-8-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-viewsonic.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-viewsonic.c b/drivers/hid/hid-viewsonic.c
index 86f41e3fcb95..532bed88bdf8 100644
--- a/drivers/hid/hid-viewsonic.c
+++ b/drivers/hid/hid-viewsonic.c
@@ -22,7 +22,7 @@
 #define PD1011_RDESC_ORIG_SIZE	408
 
 /* Fixed report descriptor of PD1011 signature pad */
-static __u8 pd1011_rdesc_fixed[] = {
+static const __u8 pd1011_rdesc_fixed[] = {
 	0x05, 0x0D,             /*  Usage Page (Digitizer),             */
 	0x09, 0x01,             /*  Usage (Digitizer),                  */
 	0xA1, 0x01,             /*  Collection (Application),           */
@@ -77,8 +77,8 @@ static const __u8 *viewsonic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	case USB_DEVICE_ID_VIEWSONIC_PD1011:
 	case USB_DEVICE_ID_SIGNOTEC_VIEWSONIC_PD1011:
 		if (*rsize == PD1011_RDESC_ORIG_SIZE) {
-			rdesc = pd1011_rdesc_fixed;
 			*rsize = sizeof(pd1011_rdesc_fixed);
+			return pd1011_rdesc_fixed;
 		}
 		break;
 	}
-- 
cgit 


From 88ae9ffc7c85c1b6b845f51e5fd850d092e75cd5 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:28 +0200
Subject: HID: steelseries: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-9-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-steelseries.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-steelseries.c b/drivers/hid/hid-steelseries.c
index 895da49e8ead..7e83fee1ffa0 100644
--- a/drivers/hid/hid-steelseries.c
+++ b/drivers/hid/hid-steelseries.c
@@ -51,7 +51,7 @@ struct steelseries_srws1_data {
  * appear in the 'Generic Desktop' usage.
  */
 
-static __u8 steelseries_srws1_rdesc_fixed[] = {
+static const __u8 steelseries_srws1_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop)                */
 0x09, 0x08,         /*  Usage (MultiAxis), Changed          */
 0xA1, 0x01,         /*  Collection (Application),           */
@@ -580,8 +580,8 @@ static const __u8 *steelseries_srws1_report_fixup(struct hid_device *hdev,
 	if (*rsize >= 115 && rdesc[11] == 0x02 && rdesc[13] == 0xc8
 			&& rdesc[29] == 0xbb && rdesc[40] == 0xc5) {
 		hid_info(hdev, "Fixing up Steelseries SRW-S1 report descriptor\n");
-		rdesc = steelseries_srws1_rdesc_fixed;
 		*rsize = sizeof(steelseries_srws1_rdesc_fixed);
+		return steelseries_srws1_rdesc_fixed;
 	}
 	return rdesc;
 }
-- 
cgit 


From 4211f9b112167f107c96e1c18cd0e5da71b0680a Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:29 +0200
Subject: HID: pxrc: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-10-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-pxrc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-pxrc.c b/drivers/hid/hid-pxrc.c
index ef38730e78ab..71fe0c06ddcd 100644
--- a/drivers/hid/hid-pxrc.c
+++ b/drivers/hid/hid-pxrc.c
@@ -17,7 +17,7 @@ struct pxrc_priv {
 	bool alternate;
 };
 
-static __u8 pxrc_rdesc_fixed[] = {
+static const __u8 pxrc_rdesc_fixed[] = {
 	0x05, 0x01,        // Usage Page (Generic Desktop Ctrls)
 	0x09, 0x04,        // Usage (Joystick)
 	0xA1, 0x01,        // Collection (Application)
-- 
cgit 


From d4781a27add1a881b92cd71d1ce6190c121d042b Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:30 +0200
Subject: HID: sony: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-11-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-sony.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 8e2e914bd236..df29c614e490 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -99,7 +99,7 @@ static const char ghl_ps4_magic_data[] = {
 };
 
 /* PS/3 Motion controller */
-static u8 motion_rdesc[] = {
+static const u8 motion_rdesc[] = {
 	0x05, 0x01,         /*  Usage Page (Desktop),               */
 	0x09, 0x04,         /*  Usage (Joystick),                   */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -195,7 +195,7 @@ static u8 motion_rdesc[] = {
 	0xC0                /*  End Collection                      */
 };
 
-static u8 ps3remote_rdesc[] = {
+static const u8 ps3remote_rdesc[] = {
 	0x05, 0x01,          /* GUsagePage Generic Desktop */
 	0x09, 0x05,          /* LUsage 0x05 [Game Pad] */
 	0xA1, 0x01,          /* MCollection Application (mouse, keyboard) */
@@ -599,15 +599,15 @@ static int guitar_mapping(struct hid_device *hdev, struct hid_input *hi,
 	return 0;
 }
 
-static u8 *motion_fixup(struct hid_device *hdev, u8 *rdesc,
-			     unsigned int *rsize)
+static const u8 *motion_fixup(struct hid_device *hdev, u8 *rdesc,
+			      unsigned int *rsize)
 {
 	*rsize = sizeof(motion_rdesc);
 	return motion_rdesc;
 }
 
-static u8 *ps3remote_fixup(struct hid_device *hdev, u8 *rdesc,
-			     unsigned int *rsize)
+static const u8 *ps3remote_fixup(struct hid_device *hdev, u8 *rdesc,
+				 unsigned int *rsize)
 {
 	*rsize = sizeof(ps3remote_rdesc);
 	return ps3remote_rdesc;
-- 
cgit 


From 24b3c515c69bcb87e4af696883eaaecece26ff60 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:31 +0200
Subject: HID: waltop: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-12-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-waltop.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/hid/hid-waltop.c b/drivers/hid/hid-waltop.c
index 137a682ef5fb..be34be27d4d5 100644
--- a/drivers/hid/hid-waltop.c
+++ b/drivers/hid/hid-waltop.c
@@ -43,7 +43,7 @@
 #define SLIM_TABLET_5_8_INCH_RDESC_ORIG_SIZE	222
 
 /* Fixed Slim Tablet 5.8 inch descriptor */
-static __u8 slim_tablet_5_8_inch_rdesc_fixed[] = {
+static const __u8 slim_tablet_5_8_inch_rdesc_fixed[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x02,         /*  Usage (Pen),                        */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -94,7 +94,7 @@ static __u8 slim_tablet_5_8_inch_rdesc_fixed[] = {
 #define SLIM_TABLET_12_1_INCH_RDESC_ORIG_SIZE	269
 
 /* Fixed Slim Tablet 12.1 inch descriptor */
-static __u8 slim_tablet_12_1_inch_rdesc_fixed[] = {
+static const __u8 slim_tablet_12_1_inch_rdesc_fixed[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x02,         /*  Usage (Pen),                        */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -145,7 +145,7 @@ static __u8 slim_tablet_12_1_inch_rdesc_fixed[] = {
 #define Q_PAD_RDESC_ORIG_SIZE	241
 
 /* Fixed Q Pad descriptor */
-static __u8 q_pad_rdesc_fixed[] = {
+static const __u8 q_pad_rdesc_fixed[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x02,         /*  Usage (Pen),                        */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -198,7 +198,7 @@ static __u8 q_pad_rdesc_fixed[] = {
 /*
  * Fixed report descriptor for tablet with PID 0038.
  */
-static __u8 pid_0038_rdesc_fixed[] = {
+static const __u8 pid_0038_rdesc_fixed[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x02,         /*  Usage (Pen),                        */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -249,7 +249,7 @@ static __u8 pid_0038_rdesc_fixed[] = {
 #define MEDIA_TABLET_10_6_INCH_RDESC_ORIG_SIZE	300
 
 /* Fixed Media Tablet 10.6 inch descriptor */
-static __u8 media_tablet_10_6_inch_rdesc_fixed[] = {
+static const __u8 media_tablet_10_6_inch_rdesc_fixed[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x02,         /*  Usage (Pen),                        */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -362,7 +362,7 @@ static __u8 media_tablet_10_6_inch_rdesc_fixed[] = {
 #define MEDIA_TABLET_14_1_INCH_RDESC_ORIG_SIZE	309
 
 /* Fixed Media Tablet 14.1 inch descriptor */
-static __u8 media_tablet_14_1_inch_rdesc_fixed[] = {
+static const __u8 media_tablet_14_1_inch_rdesc_fixed[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x02,         /*  Usage (Pen),                        */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -473,7 +473,7 @@ static __u8 media_tablet_14_1_inch_rdesc_fixed[] = {
 #define SIRIUS_BATTERY_FREE_TABLET_RDESC_ORIG_SIZE	335
 
 /* Fixed Sirius Battery Free Tablet descriptor */
-static __u8 sirius_battery_free_tablet_rdesc_fixed[] = {
+static const __u8 sirius_battery_free_tablet_rdesc_fixed[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x02,         /*  Usage (Pen),                        */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -605,44 +605,44 @@ static const __u8 *waltop_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	switch (hdev->product) {
 	case USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH:
 		if (*rsize == SLIM_TABLET_5_8_INCH_RDESC_ORIG_SIZE) {
-			rdesc = slim_tablet_5_8_inch_rdesc_fixed;
 			*rsize = sizeof(slim_tablet_5_8_inch_rdesc_fixed);
+			return slim_tablet_5_8_inch_rdesc_fixed;
 		}
 		break;
 	case USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH:
 		if (*rsize == SLIM_TABLET_12_1_INCH_RDESC_ORIG_SIZE) {
-			rdesc = slim_tablet_12_1_inch_rdesc_fixed;
 			*rsize = sizeof(slim_tablet_12_1_inch_rdesc_fixed);
+			return slim_tablet_12_1_inch_rdesc_fixed;
 		}
 		break;
 	case USB_DEVICE_ID_WALTOP_Q_PAD:
 		if (*rsize == Q_PAD_RDESC_ORIG_SIZE) {
-			rdesc = q_pad_rdesc_fixed;
 			*rsize = sizeof(q_pad_rdesc_fixed);
+			return q_pad_rdesc_fixed;
 		}
 		break;
 	case USB_DEVICE_ID_WALTOP_PID_0038:
 		if (*rsize == PID_0038_RDESC_ORIG_SIZE) {
-			rdesc = pid_0038_rdesc_fixed;
 			*rsize = sizeof(pid_0038_rdesc_fixed);
+			return pid_0038_rdesc_fixed;
 		}
 		break;
 	case USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH:
 		if (*rsize == MEDIA_TABLET_10_6_INCH_RDESC_ORIG_SIZE) {
-			rdesc = media_tablet_10_6_inch_rdesc_fixed;
 			*rsize = sizeof(media_tablet_10_6_inch_rdesc_fixed);
+			return media_tablet_10_6_inch_rdesc_fixed;
 		}
 		break;
 	case USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH:
 		if (*rsize == MEDIA_TABLET_14_1_INCH_RDESC_ORIG_SIZE) {
-			rdesc = media_tablet_14_1_inch_rdesc_fixed;
 			*rsize = sizeof(media_tablet_14_1_inch_rdesc_fixed);
+			return media_tablet_14_1_inch_rdesc_fixed;
 		}
 		break;
 	case USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET:
 		if (*rsize == SIRIUS_BATTERY_FREE_TABLET_RDESC_ORIG_SIZE) {
-			rdesc = sirius_battery_free_tablet_rdesc_fixed;
 			*rsize = sizeof(sirius_battery_free_tablet_rdesc_fixed);
+			return sirius_battery_free_tablet_rdesc_fixed;
 		}
 		break;
 	}
-- 
cgit 


From 03f8dc1d0a3823229a761f202bc1a6e63d5b4ba0 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:33 +0200
Subject: HID: uclogic: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-14-663b9210eb69@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-uclogic-core.c   |  2 +-
 drivers/hid/hid-uclogic-params.c |  4 ++--
 drivers/hid/hid-uclogic-params.h | 10 +++++-----
 drivers/hid/hid-uclogic-rdesc.c  | 20 ++++++++++----------
 drivers/hid/hid-uclogic-rdesc.h  | 20 ++++++++++----------
 5 files changed, 28 insertions(+), 28 deletions(-)

diff --git a/drivers/hid/hid-uclogic-core.c b/drivers/hid/hid-uclogic-core.c
index f6a1572b3728..d8008933c052 100644
--- a/drivers/hid/hid-uclogic-core.c
+++ b/drivers/hid/hid-uclogic-core.c
@@ -56,8 +56,8 @@ static const __u8 *uclogic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
 
 	if (drvdata->desc_ptr != NULL) {
-		rdesc = drvdata->desc_ptr;
 		*rsize = drvdata->desc_size;
+		return drvdata->desc_ptr;
 	}
 	return rdesc;
 }
diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c
index 5bab006ec165..87fd4eb76c70 100644
--- a/drivers/hid/hid-uclogic-params.c
+++ b/drivers/hid/hid-uclogic-params.c
@@ -681,7 +681,7 @@ void uclogic_params_cleanup(struct uclogic_params *params)
  *	-ENOMEM, if failed to allocate memory.
  */
 int uclogic_params_get_desc(const struct uclogic_params *params,
-				__u8 **pdesc,
+				const __u8 **pdesc,
 				unsigned int *psize)
 {
 	int rc = -ENOMEM;
@@ -769,7 +769,7 @@ static void uclogic_params_init_invalid(struct uclogic_params *params)
 static int uclogic_params_init_with_opt_desc(struct uclogic_params *params,
 					     struct hid_device *hdev,
 					     unsigned int orig_desc_size,
-					     __u8 *desc_ptr,
+					     const __u8 *desc_ptr,
 					     unsigned int desc_size)
 {
 	__u8 *desc_copy_ptr = NULL;
diff --git a/drivers/hid/hid-uclogic-params.h b/drivers/hid/hid-uclogic-params.h
index d6ffadb2f601..35ff062d09b5 100644
--- a/drivers/hid/hid-uclogic-params.h
+++ b/drivers/hid/hid-uclogic-params.h
@@ -79,7 +79,7 @@ struct uclogic_params_pen {
 	 * Pointer to report descriptor part describing the pen inputs.
 	 * Allocated with kmalloc. NULL if the part is not specified.
 	 */
-	__u8 *desc_ptr;
+	const __u8 *desc_ptr;
 	/*
 	 * Size of the report descriptor.
 	 * Only valid, if "desc_ptr" is not NULL.
@@ -118,7 +118,7 @@ struct uclogic_params_frame {
 	 * Pointer to report descriptor part describing the frame inputs.
 	 * Allocated with kmalloc. NULL if the part is not specified.
 	 */
-	__u8 *desc_ptr;
+	const __u8 *desc_ptr;
 	/*
 	 * Size of the report descriptor.
 	 * Only valid, if "desc_ptr" is not NULL.
@@ -212,7 +212,7 @@ struct uclogic_params {
 	 * allocated with kmalloc. NULL if no common part is needed.
 	 * Only valid, if "invalid" is false.
 	 */
-	__u8 *desc_ptr;
+	const __u8 *desc_ptr;
 	/*
 	 * Size of the common part of the replacement report descriptor.
 	 * Only valid, if "desc_ptr" is valid and not NULL.
@@ -239,7 +239,7 @@ struct uclogic_drvdata {
 	/* Interface parameters */
 	struct uclogic_params params;
 	/* Pointer to the replacement report descriptor. NULL if none. */
-	__u8 *desc_ptr;
+	const __u8 *desc_ptr;
 	/*
 	 * Size of the replacement report descriptor.
 	 * Only valid if desc_ptr is not NULL
@@ -261,7 +261,7 @@ extern int uclogic_params_init(struct uclogic_params *params,
 
 /* Get a replacement report descriptor for a tablet's interface. */
 extern int uclogic_params_get_desc(const struct uclogic_params *params,
-					__u8 **pdesc,
+					const __u8 **pdesc,
 					unsigned int *psize);
 
 /* Free resources used by tablet interface's parameters */
diff --git a/drivers/hid/hid-uclogic-rdesc.c b/drivers/hid/hid-uclogic-rdesc.c
index acfa591ab52f..964d17e08f26 100644
--- a/drivers/hid/hid-uclogic-rdesc.c
+++ b/drivers/hid/hid-uclogic-rdesc.c
@@ -20,7 +20,7 @@
 #include <kunit/visibility.h>
 
 /* Fixed WP4030U report descriptor */
-__u8 uclogic_rdesc_wp4030u_fixed_arr[] = {
+const __u8 uclogic_rdesc_wp4030u_fixed_arr[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x01,         /*  Usage (Digitizer),                  */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -65,7 +65,7 @@ const size_t uclogic_rdesc_wp4030u_fixed_size =
 			sizeof(uclogic_rdesc_wp4030u_fixed_arr);
 
 /* Fixed WP5540U report descriptor */
-__u8 uclogic_rdesc_wp5540u_fixed_arr[] = {
+const __u8 uclogic_rdesc_wp5540u_fixed_arr[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x01,         /*  Usage (Digitizer),                  */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -142,7 +142,7 @@ const size_t uclogic_rdesc_wp5540u_fixed_size =
 			sizeof(uclogic_rdesc_wp5540u_fixed_arr);
 
 /* Fixed WP8060U report descriptor */
-__u8 uclogic_rdesc_wp8060u_fixed_arr[] = {
+const __u8 uclogic_rdesc_wp8060u_fixed_arr[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x01,         /*  Usage (Digitizer),                  */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -219,7 +219,7 @@ const size_t uclogic_rdesc_wp8060u_fixed_size =
 			sizeof(uclogic_rdesc_wp8060u_fixed_arr);
 
 /* Fixed WP1062 report descriptor */
-__u8 uclogic_rdesc_wp1062_fixed_arr[] = {
+const __u8 uclogic_rdesc_wp1062_fixed_arr[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x01,         /*  Usage (Digitizer),                  */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -267,7 +267,7 @@ const size_t uclogic_rdesc_wp1062_fixed_size =
 			sizeof(uclogic_rdesc_wp1062_fixed_arr);
 
 /* Fixed PF1209 report descriptor */
-__u8 uclogic_rdesc_pf1209_fixed_arr[] = {
+const __u8 uclogic_rdesc_pf1209_fixed_arr[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x01,         /*  Usage (Digitizer),                  */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -344,7 +344,7 @@ const size_t uclogic_rdesc_pf1209_fixed_size =
 			sizeof(uclogic_rdesc_pf1209_fixed_arr);
 
 /* Fixed PID 0522 tablet report descriptor, interface 0 (stylus) */
-__u8 uclogic_rdesc_twhl850_fixed0_arr[] = {
+const __u8 uclogic_rdesc_twhl850_fixed0_arr[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x01,         /*  Usage (Digitizer),                  */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -390,7 +390,7 @@ const size_t uclogic_rdesc_twhl850_fixed0_size =
 			sizeof(uclogic_rdesc_twhl850_fixed0_arr);
 
 /* Fixed PID 0522 tablet report descriptor, interface 1 (mouse) */
-__u8 uclogic_rdesc_twhl850_fixed1_arr[] = {
+const __u8 uclogic_rdesc_twhl850_fixed1_arr[] = {
 	0x05, 0x01,         /*  Usage Page (Desktop),               */
 	0x09, 0x02,         /*  Usage (Mouse),                      */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -430,7 +430,7 @@ const size_t uclogic_rdesc_twhl850_fixed1_size =
 			sizeof(uclogic_rdesc_twhl850_fixed1_arr);
 
 /* Fixed PID 0522 tablet report descriptor, interface 2 (frame buttons) */
-__u8 uclogic_rdesc_twhl850_fixed2_arr[] = {
+const __u8 uclogic_rdesc_twhl850_fixed2_arr[] = {
 	0x05, 0x01,         /*  Usage Page (Desktop),               */
 	0x09, 0x06,         /*  Usage (Keyboard),                   */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -456,7 +456,7 @@ const size_t uclogic_rdesc_twhl850_fixed2_size =
 			sizeof(uclogic_rdesc_twhl850_fixed2_arr);
 
 /* Fixed TWHA60 report descriptor, interface 0 (stylus) */
-__u8 uclogic_rdesc_twha60_fixed0_arr[] = {
+const __u8 uclogic_rdesc_twha60_fixed0_arr[] = {
 	0x05, 0x0D,         /*  Usage Page (Digitizer),             */
 	0x09, 0x01,         /*  Usage (Digitizer),                  */
 	0xA1, 0x01,         /*  Collection (Application),           */
@@ -505,7 +505,7 @@ const size_t uclogic_rdesc_twha60_fixed0_size =
 			sizeof(uclogic_rdesc_twha60_fixed0_arr);
 
 /* Fixed TWHA60 report descriptor, interface 1 (frame buttons) */
-__u8 uclogic_rdesc_twha60_fixed1_arr[] = {
+const __u8 uclogic_rdesc_twha60_fixed1_arr[] = {
 	0x05, 0x01, /*  Usage Page (Desktop),       */
 	0x09, 0x06, /*  Usage (Keyboard),           */
 	0xA1, 0x01, /*  Collection (Application),   */
diff --git a/drivers/hid/hid-uclogic-rdesc.h b/drivers/hid/hid-uclogic-rdesc.h
index 906d068f50a9..3878a0e8c464 100644
--- a/drivers/hid/hid-uclogic-rdesc.h
+++ b/drivers/hid/hid-uclogic-rdesc.h
@@ -23,15 +23,15 @@
 #define UCLOGIC_RDESC_WPXXXXU_ORIG_SIZE		212
 
 /* Fixed WP4030U report descriptor */
-extern __u8 uclogic_rdesc_wp4030u_fixed_arr[];
+extern const __u8 uclogic_rdesc_wp4030u_fixed_arr[];
 extern const size_t uclogic_rdesc_wp4030u_fixed_size;
 
 /* Fixed WP5540U report descriptor */
-extern __u8 uclogic_rdesc_wp5540u_fixed_arr[];
+extern const __u8 uclogic_rdesc_wp5540u_fixed_arr[];
 extern const size_t uclogic_rdesc_wp5540u_fixed_size;
 
 /* Fixed WP8060U report descriptor */
-extern __u8 uclogic_rdesc_wp8060u_fixed_arr[];
+extern const __u8 uclogic_rdesc_wp8060u_fixed_arr[];
 extern const size_t uclogic_rdesc_wp8060u_fixed_size;
 
 /* Size of the original descriptor of the new WP5540U tablet */
@@ -41,14 +41,14 @@ extern const size_t uclogic_rdesc_wp8060u_fixed_size;
 #define UCLOGIC_RDESC_WP1062_ORIG_SIZE		254
 
 /* Fixed WP1062 report descriptor */
-extern __u8 uclogic_rdesc_wp1062_fixed_arr[];
+extern const __u8 uclogic_rdesc_wp1062_fixed_arr[];
 extern const size_t uclogic_rdesc_wp1062_fixed_size;
 
 /* Size of the original descriptor of PF1209 tablet */
 #define UCLOGIC_RDESC_PF1209_ORIG_SIZE		234
 
 /* Fixed PF1209 report descriptor */
-extern __u8 uclogic_rdesc_pf1209_fixed_arr[];
+extern const __u8 uclogic_rdesc_pf1209_fixed_arr[];
 extern const size_t uclogic_rdesc_pf1209_fixed_size;
 
 /* Size of the original descriptors of TWHL850 tablet */
@@ -57,15 +57,15 @@ extern const size_t uclogic_rdesc_pf1209_fixed_size;
 #define UCLOGIC_RDESC_TWHL850_ORIG2_SIZE	92
 
 /* Fixed PID 0522 tablet report descriptor, interface 0 (stylus) */
-extern __u8 uclogic_rdesc_twhl850_fixed0_arr[];
+extern const __u8 uclogic_rdesc_twhl850_fixed0_arr[];
 extern const size_t uclogic_rdesc_twhl850_fixed0_size;
 
 /* Fixed PID 0522 tablet report descriptor, interface 1 (mouse) */
-extern __u8 uclogic_rdesc_twhl850_fixed1_arr[];
+extern const __u8 uclogic_rdesc_twhl850_fixed1_arr[];
 extern const size_t uclogic_rdesc_twhl850_fixed1_size;
 
 /* Fixed PID 0522 tablet report descriptor, interface 2 (frame buttons) */
-extern __u8 uclogic_rdesc_twhl850_fixed2_arr[];
+extern const __u8 uclogic_rdesc_twhl850_fixed2_arr[];
 extern const size_t uclogic_rdesc_twhl850_fixed2_size;
 
 /* Size of the original descriptors of TWHA60 tablet */
@@ -73,11 +73,11 @@ extern const size_t uclogic_rdesc_twhl850_fixed2_size;
 #define UCLOGIC_RDESC_TWHA60_ORIG1_SIZE		139
 
 /* Fixed TWHA60 report descriptor, interface 0 (stylus) */
-extern __u8 uclogic_rdesc_twha60_fixed0_arr[];
+extern const __u8 uclogic_rdesc_twha60_fixed0_arr[];
 extern const size_t uclogic_rdesc_twha60_fixed0_size;
 
 /* Fixed TWHA60 report descriptor, interface 1 (frame buttons) */
-extern __u8 uclogic_rdesc_twha60_fixed1_arr[];
+extern const __u8 uclogic_rdesc_twha60_fixed1_arr[];
 extern const size_t uclogic_rdesc_twha60_fixed1_size;
 
 /* Report descriptor template placeholder head */
-- 
cgit 


From 9f5305ed80108a7849b3b27e1a889a7afff46a51 Mon Sep 17 00:00:00 2001
From: Thomas Weißschuh <linux@weissschuh.net>
Date: Thu, 5 Sep 2024 17:48:38 +0200
Subject: HID: lg: constify fixed up report descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Now that the HID core can handle const report descriptors,
constify them where possible.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20240905-hid-const-fixup-2-v2-1-70915e0cc1c7@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 drivers/hid/hid-lg.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index a9be918e2b5c..9a2cfa018bd3 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -58,7 +58,7 @@
  * These descriptors remove the combined Y axis and instead report
  * separate throttle (Y) and brake (RZ).
  */
-static __u8 df_rdesc_fixed[] = {
+static const __u8 df_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),                   */
 0x09, 0x04,         /*  Usage (Joystick),                       */
 0xA1, 0x01,         /*  Collection (Application),               */
@@ -124,7 +124,7 @@ static __u8 df_rdesc_fixed[] = {
 0xC0                /*  End Collection                          */
 };
 
-static __u8 dfp_rdesc_fixed[] = {
+static const __u8 dfp_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),                   */
 0x09, 0x04,         /*  Usage (Joystick),                       */
 0xA1, 0x01,         /*  Collection (Application),               */
@@ -172,7 +172,7 @@ static __u8 dfp_rdesc_fixed[] = {
 0xC0                /*  End Collection                          */
 };
 
-static __u8 fv_rdesc_fixed[] = {
+static const __u8 fv_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),                   */
 0x09, 0x04,         /*  Usage (Joystick),                       */
 0xA1, 0x01,         /*  Collection (Application),               */
@@ -239,7 +239,7 @@ static __u8 fv_rdesc_fixed[] = {
 0xC0                /*  End Collection                          */
 };
 
-static __u8 momo_rdesc_fixed[] = {
+static const __u8 momo_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),               */
 0x09, 0x04,         /*  Usage (Joystick),                   */
 0xA1, 0x01,         /*  Collection (Application),           */
@@ -285,7 +285,7 @@ static __u8 momo_rdesc_fixed[] = {
 0xC0                /*  End Collection                      */
 };
 
-static __u8 momo2_rdesc_fixed[] = {
+static const __u8 momo2_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),               */
 0x09, 0x04,         /*  Usage (Joystick),                   */
 0xA1, 0x01,         /*  Collection (Application),           */
@@ -333,7 +333,7 @@ static __u8 momo2_rdesc_fixed[] = {
 0xC0                /*  End Collection                      */
 };
 
-static __u8 ffg_rdesc_fixed[] = {
+static const __u8 ffg_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),               */
 0x09, 0x04,         /*  Usage (Joystik),                    */
 0xA1, 0x01,         /*  Collection (Application),           */
@@ -379,7 +379,7 @@ static __u8 ffg_rdesc_fixed[] = {
 0xC0                /*  End Collection                      */
 };
 
-static __u8 fg_rdesc_fixed[] = {
+static const __u8 fg_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),               */
 0x09, 0x04,         /*  Usage (Joystik),                    */
 0xA1, 0x01,         /*  Collection (Application),           */
@@ -453,8 +453,8 @@ static const __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		if (*rsize == FG_RDESC_ORIG_SIZE) {
 			hid_info(hdev,
 				"fixing up Logitech Wingman Formula GP report descriptor\n");
-			rdesc = fg_rdesc_fixed;
 			*rsize = sizeof(fg_rdesc_fixed);
+			return fg_rdesc_fixed;
 		} else {
 			hid_info(hdev,
 				"rdesc size test failed for formula gp\n");
@@ -466,8 +466,8 @@ static const __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		if (*rsize == FFG_RDESC_ORIG_SIZE) {
 			hid_info(hdev,
 				"fixing up Logitech Wingman Formula Force GP report descriptor\n");
-			rdesc = ffg_rdesc_fixed;
 			*rsize = sizeof(ffg_rdesc_fixed);
+			return ffg_rdesc_fixed;
 		}
 		break;
 
@@ -476,8 +476,8 @@ static const __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		if (*rsize == DF_RDESC_ORIG_SIZE) {
 			hid_info(hdev,
 				"fixing up Logitech Driving Force report descriptor\n");
-			rdesc = df_rdesc_fixed;
 			*rsize = sizeof(df_rdesc_fixed);
+			return df_rdesc_fixed;
 		}
 		break;
 
@@ -485,8 +485,8 @@ static const __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		if (*rsize == MOMO_RDESC_ORIG_SIZE) {
 			hid_info(hdev,
 				"fixing up Logitech Momo Force (Red) report descriptor\n");
-			rdesc = momo_rdesc_fixed;
 			*rsize = sizeof(momo_rdesc_fixed);
+			return momo_rdesc_fixed;
 		}
 		break;
 
@@ -494,8 +494,8 @@ static const __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		if (*rsize == MOMO2_RDESC_ORIG_SIZE) {
 			hid_info(hdev,
 				"fixing up Logitech Momo Racing Force (Black) report descriptor\n");
-			rdesc = momo2_rdesc_fixed;
 			*rsize = sizeof(momo2_rdesc_fixed);
+			return momo2_rdesc_fixed;
 		}
 		break;
 
@@ -503,8 +503,8 @@ static const __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		if (*rsize == FV_RDESC_ORIG_SIZE) {
 			hid_info(hdev,
 				"fixing up Logitech Formula Vibration report descriptor\n");
-			rdesc = fv_rdesc_fixed;
 			*rsize = sizeof(fv_rdesc_fixed);
+			return fv_rdesc_fixed;
 		}
 		break;
 
@@ -512,8 +512,8 @@ static const __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		if (*rsize == DFP_RDESC_ORIG_SIZE) {
 			hid_info(hdev,
 				"fixing up Logitech Driving Force Pro report descriptor\n");
-			rdesc = dfp_rdesc_fixed;
 			*rsize = sizeof(dfp_rdesc_fixed);
+			return dfp_rdesc_fixed;
 		}
 		break;
 
-- 
cgit