Merge branch 'for-6.12/constify-rdesc' into for-linus

- Constification of report descriptors so drivers can use read-only
  memory when declaring report descriptors fixups (Thomas Weißschuh)

56 files changed, 161 insertions, 165 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/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..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) */
@@ -464,12 +464,12 @@ 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) {
-		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;
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..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),       */
@@ -199,13 +199,13 @@ 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) {
 		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;
 }
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index caeba5487b69..30de92d0bf0f 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,
@@ -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)
@@ -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/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..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),       */
@@ -228,14 +228,14 @@ 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:
 		if (*rsize == PID0011_RDESC_ORIG_SIZE) {
-			rdesc = pid0011_rdesc_fixed;
 			*rsize = sizeof(pid0011_rdesc_fixed);
+			return pid0011_rdesc_fixed;
 		}
 		break;
 	}
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..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),                          */
@@ -102,14 +102,14 @@ 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);
 
 	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;
 }
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..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,
@@ -24,15 +24,13 @@ 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");
 
-	rdesc = keytouch_fixed_rdesc;
 	*rsize = sizeof(keytouch_fixed_rdesc);
-
-	return rdesc;
+	return keytouch_fixed_rdesc;
 }
 
 static const struct hid_device_id keytouch_devices[] = {
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..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),           */
@@ -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);
@@ -453,8 +453,8 @@ static __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 __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 __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 __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 __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 __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 __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;
 
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..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)           */
@@ -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 15bcafa220e4..638e36c6d0f1 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1447,7 +1447,7 @@ 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..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)
@@ -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..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;
@@ -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..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),           */
@@ -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)
@@ -580,8 +580,8 @@ static __u8 *steelseries_srws1_report_fixup(struct hid_device *hdev, __u8 *rdesc
 	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;
 }
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..d8008933c052 100644
--- a/drivers/hid/hid-uclogic-core.c
+++ b/drivers/hid/hid-uclogic-core.c
@@ -50,14 +50,14 @@ 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);
 
 	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 */
diff --git a/drivers/hid/hid-viewsonic.c b/drivers/hid/hid-viewsonic.c
index 668c2adb77b6..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),           */
@@ -70,15 +70,15 @@ 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:
 	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;
 	}
diff --git a/drivers/hid/hid-vrc2.c b/drivers/hid/hid-vrc2.c
index 80a2b7ef5e66..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)
@@ -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..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),           */
@@ -599,50 +599,50 @@ 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) {
 	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;
 	}
diff --git a/drivers/hid/hid-winwing.c b/drivers/hid/hid-winwing.c
index 10a5d87ccb96..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,
@@ -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..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),           */
@@ -61,15 +61,15 @@ 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:
 		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;
 	}
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 &&