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Message-Id: <20240828-hid-const-fixup-2-v1-13-663b9210eb69@weissschuh.net>
Date: Wed, 28 Aug 2024 09:33:32 +0200
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Jiri Kosina <jikos@...nel.org>, Benjamin Tissoires <bentiss@...nel.org>,
Marcus Folkesson <marcus.folkesson@...il.com>
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH 13/14] HID: lg: constify fixed up report descriptor
Now that the HID core can handle const report descriptors,
constify them where possible.
Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
drivers/hid/hid-lg.c | 31 +++++++++++++++++--------------
1 file changed, 17 insertions(+), 14 deletions(-)
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index a9be918e2b5c..c1feeb1dd077 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), */
@@ -431,6 +431,7 @@ 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);
+ const __u8 *ret = NULL;
if ((drv_data->quirks & LG_RDESC) && *rsize >= 91 && rdesc[83] == 0x26 &&
rdesc[84] == 0x8c && rdesc[85] == 0x02) {
@@ -453,7 +454,7 @@ 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;
+ ret = fg_rdesc_fixed;
*rsize = sizeof(fg_rdesc_fixed);
} else {
hid_info(hdev,
@@ -466,7 +467,7 @@ 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;
+ ret = ffg_rdesc_fixed;
*rsize = sizeof(ffg_rdesc_fixed);
}
break;
@@ -476,7 +477,7 @@ 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;
+ ret = df_rdesc_fixed;
*rsize = sizeof(df_rdesc_fixed);
}
break;
@@ -485,7 +486,7 @@ 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;
+ ret = momo_rdesc_fixed;
*rsize = sizeof(momo_rdesc_fixed);
}
break;
@@ -494,7 +495,7 @@ 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;
+ ret = momo2_rdesc_fixed;
*rsize = sizeof(momo2_rdesc_fixed);
}
break;
@@ -503,7 +504,7 @@ 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;
+ ret = fv_rdesc_fixed;
*rsize = sizeof(fv_rdesc_fixed);
}
break;
@@ -512,7 +513,7 @@ 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;
+ ret = dfp_rdesc_fixed;
*rsize = sizeof(dfp_rdesc_fixed);
}
break;
@@ -529,6 +530,8 @@ static const __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
break;
}
+ if (ret)
+ return ret;
return rdesc;
}
--
2.46.0
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