File Tubleweed.patch of Package displaylink

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File Tubleweed.patch of Package displaylink (Revision ffd5a755d4b5714ba766a96471e81dab)

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From 273fbb0a67eca5f60fd2aaab0e25076dae4d8a3a Mon Sep 17 00:00:00 2001
From: Michael Teuscher <michael.teuscher@pm.me>
Date: Sun, 26 Sep 2021 13:02:25 +0200
Subject: [PATCH] Remove compat calls for 5.15 kernel

---
 module/Makefile       |   2 -
 module/evdi_drm_drv.c |   3 -
 module/evdi_drm_drv.h |   5 --
 module/evdi_ioc32.c   | 143 ------------------------------------------
 4 files changed, 153 deletions(-)
 delete mode 100644 module/evdi_ioc32.c

diff --git a/module/Makefile b/module/Makefile
index 824fb83..111430a 100644
--- a/module/Makefile
+++ b/module/Makefile
@@ -19,7 +19,6 @@ KERN_DIR := /lib/modules/$(KERNELRELEASE)/build
 
 ccflags-y := -Iinclude/drm $(EL8FLAG)
 evdi-y := evdi_platform_drv.o evdi_platform_dev.o evdi_sysfs.o evdi_modeset.o evdi_connector.o evdi_encoder.o evdi_drm_drv.o evdi_fb.o evdi_gem.o evdi_painter.o evdi_params.o evdi_cursor.o evdi_debug.o evdi_i2c.o
-evdi-$(CONFIG_COMPAT) += evdi_ioc32.o
 obj-m := evdi.o
 
 KBUILD_VERBOSE ?= 1
@@ -43,7 +42,6 @@ CONFIG_DRM_EVDI := m
 LINUXINCLUDE := $(subst -I,-isystem,$(LINUXINCLUDE))
 ccflags-y := -isystem include/drm $(CFLAGS) $(EL8FLAG)
 evdi-y := evdi_platform_drv.o evdi_platform_dev.o evdi_sysfs.o evdi_modeset.o evdi_connector.o evdi_encoder.o evdi_drm_drv.o evdi_fb.o evdi_gem.o evdi_painter.o evdi_params.o evdi_cursor.o evdi_debug.o evdi_i2c.o
-evdi-$(CONFIG_COMPAT) += evdi_ioc32.o
 obj-$(CONFIG_DRM_EVDI) := evdi.o
 
 else
diff --git a/module/evdi_drm_drv.c b/module/evdi_drm_drv.c
index 8d2afcd..8a82bb7 100644
--- a/module/evdi_drm_drv.c
+++ b/module/evdi_drm_drv.c
@@ -58,9 +58,6 @@ static const struct file_operations evdi_driver_fops = {
 	.read = drm_read,
 	.unlocked_ioctl = drm_ioctl,
 	.release = drm_release,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl = evdi_compat_ioctl,
-#endif
 	.llseek = noop_llseek,
 };
 
diff --git a/module/evdi_drm_drv.h b/module/evdi_drm_drv.h
index a862638..328f56e 100644
--- a/module/evdi_drm_drv.h
+++ b/module/evdi_drm_drv.h
@@ -20,7 +20,6 @@
 #include <drm/drm_drv.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_ioctl.h>
-#include <drm/drm_irq.h>
 #include <drm/drm_vblank.h>
 #else
 #include <drm/drmP.h>
@@ -92,10 +91,6 @@ int evdi_driver_open(struct drm_device *drm_dev, struct drm_file *file);
 void evdi_driver_preclose(struct drm_device *dev, struct drm_file *file_priv);
 void evdi_driver_postclose(struct drm_device *dev, struct drm_file *file_priv);
 
-#ifdef CONFIG_COMPAT
-long evdi_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
-#endif
-
 #ifdef CONFIG_FB
 int evdi_fbdev_init(struct drm_device *dev);
 void evdi_fbdev_cleanup(struct drm_device *dev);
diff --git a/module/evdi_ioc32.c b/module/evdi_ioc32.c
deleted file mode 100644
index 5036efb..0000000
--- a/module/evdi_ioc32.c
+++ /dev/null
@@ -1,143 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * evdi_ioc32.c
- *
- * Copyright (c) 2016 The Chromium OS Authors
- * Copyright (c) 2017 - 2020 DisplayLink (UK) Ltd.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/compat.h>
-
-#include <linux/version.h>
-#if KERNEL_VERSION(5, 5, 0) <= LINUX_VERSION_CODE || defined(EL8)
-#else
-#include <drm/drmP.h>
-#endif
-#include <drm/drm_edid.h>
-#include "evdi_drm.h"
-
-#include "evdi_drm_drv.h"
-
-struct drm_evdi_connect32 {
-	int32_t connected;
-	int32_t dev_index;
-	uint32_t edid_ptr32;
-	uint32_t edid_length;
-	uint32_t sku_area_limit;
-};
-
-struct drm_evdi_grabpix32 {
-	uint32_t mode;
-	int32_t buf_width;
-	int32_t buf_height;
-	int32_t buf_byte_stride;
-	uint32_t buffer_ptr32;
-	int32_t num_rects;
-	uint32_t rects_ptr32;
-};
-
-static int compat_evdi_connect(struct file *file,
-				unsigned int __always_unused cmd,
-				unsigned long arg)
-{
-	struct drm_evdi_connect32 req32;
-	struct drm_evdi_connect __user *request;
-
-	if (copy_from_user(&req32, (void __user *)arg, sizeof(req32)))
-		return -EFAULT;
-
-	request = compat_alloc_user_space(sizeof(*request));
-#if KERNEL_VERSION(5, 0, 0) <= LINUX_VERSION_CODE || defined(EL8)
-	if (!access_ok(request, sizeof(*request))
-#else
-	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
-#endif
-		|| __put_user(req32.connected, &request->connected)
-		|| __put_user(req32.dev_index, &request->dev_index)
-		|| __put_user((void __user *)(unsigned long)req32.edid_ptr32,
-			  &request->edid)
-		|| __put_user(req32.edid_length, &request->edid_length)
-		|| __put_user(req32.sku_area_limit, &request->sku_area_limit))
-		return -EFAULT;
-
-	return drm_ioctl(file, DRM_IOCTL_EVDI_CONNECT,
-			 (unsigned long)request);
-}
-
-static int compat_evdi_grabpix(struct file *file,
-				unsigned int __always_unused cmd,
-				unsigned long arg)
-{
-	struct drm_evdi_grabpix32 req32;
-	struct drm_evdi_grabpix __user *request;
-
-	if (copy_from_user(&req32, (void __user *)arg, sizeof(req32)))
-		return -EFAULT;
-
-	request = compat_alloc_user_space(sizeof(*request));
-#if KERNEL_VERSION(5, 0, 0) <= LINUX_VERSION_CODE || defined(EL8)
-	if (!access_ok(request, sizeof(*request))
-#else
-	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
-#endif
-		|| __put_user(req32.mode, &request->mode)
-		|| __put_user(req32.buf_width, &request->buf_width)
-		|| __put_user(req32.buf_height, &request->buf_height)
-		|| __put_user(req32.buf_byte_stride, &request->buf_byte_stride)
-		|| __put_user((void __user *)(unsigned long)req32.buffer_ptr32,
-			  &request->buffer)
-		|| __put_user(req32.num_rects, &request->num_rects)
-		|| __put_user((void __user *)(unsigned long)req32.rects_ptr32,
-			  &request->rects))
-		return -EFAULT;
-
-	return drm_ioctl(file, DRM_IOCTL_EVDI_GRABPIX,
-			 (unsigned long)request);
-}
-
-static drm_ioctl_compat_t *evdi_compat_ioctls[] = {
-	[DRM_EVDI_CONNECT] = compat_evdi_connect,
-	[DRM_EVDI_GRABPIX] = compat_evdi_grabpix,
-};
-
-/**
- * Called whenever a 32-bit process running under a 64-bit kernel
- * performs an ioctl on /dev/dri/card<n>.
- *
- * \param filp file pointer.
- * \param cmd command.
- * \param arg user argument.
- * \return zero on success or negative number on failure.
- */
-long evdi_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
-	int ret;
-
-	if (nr < DRM_COMMAND_BASE || nr >= DRM_COMMAND_END)
-		return drm_compat_ioctl(filp, cmd, arg);
-
-	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(evdi_compat_ioctls))
-		fn = evdi_compat_ioctls[nr - DRM_COMMAND_BASE];
-
-	if (fn != NULL)
-		ret = (*fn) (filp, cmd, arg);
-	else
-		ret = drm_ioctl(filp, cmd, arg);
-
-	return ret;
-}

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File Tubleweed.patch of Package displaylink (Revision ffd5a755d4b5714ba766a96471e81dab)

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