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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/drivers/media/pci/ngene/ngene-core.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * ngene.c: nGene PCIe bridge driver
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  *
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@@ -7,20 +8,6 @@
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  *                         Modifications for new nGene firmware,
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  *                         support for EEPROM-copying,
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  *                         support for new dual DVB-S2 card prototype
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- *
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * version 2 only, as published by the Free Software Foundation.
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- *
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * To obtain the license, point your browser to
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- * http://www.gnu.org/copyleft/gpl.html
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  */
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 #include <linux/module.h>
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@@ -63,9 +50,9 @@
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 /* nGene interrupt handler **************************************************/
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 /****************************************************************************/
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-static void event_tasklet(unsigned long data)
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+static void event_tasklet(struct tasklet_struct *t)
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 {
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-	struct ngene *dev = (struct ngene *)data;
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+	struct ngene *dev = from_tasklet(dev, t, event_tasklet);
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 	while (dev->EventQueueReadIndex != dev->EventQueueWriteIndex) {
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 		struct EVENT_BUFFER Event =
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@@ -81,9 +68,9 @@
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 	}
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 }
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-static void demux_tasklet(unsigned long data)
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+static void demux_tasklet(struct tasklet_struct *t)
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 {
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-	struct ngene_channel *chan = (struct ngene_channel *)data;
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+	struct ngene_channel *chan = from_tasklet(chan, t, demux_tasklet);
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 	struct device *pdev = &chan->dev->pci_dev->dev;
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 	struct SBufferHeader *Cur = chan->nextBuffer;
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@@ -867,8 +854,6 @@
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 	if (!Head)
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 		return -ENOMEM;
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-	memset(Head, 0, MemSize);
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-
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 	PARingBufferCur = PARingBufferHead;
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 	Cur = Head;
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@@ -919,8 +904,6 @@
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 	PASCListMem = tmp;
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 	if (SCListMem == NULL)
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 		return -ENOMEM;
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-
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-	memset(SCListMem, 0, SCListMemSize);
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 	pRingBuffer->SCListMem = SCListMem;
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 	pRingBuffer->PASCListMem = PASCListMem;
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@@ -1014,7 +997,7 @@
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 	/* Point to first buffer entry */
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 	struct SBufferHeader *Cur = pRingBuffer->Head;
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 	int i;
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-	/* Loop thru all buffer and set Buffer 2 pointers to TSIdlebuffer */
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+	/* Loop through all buffer and set Buffer 2 pointers to TSIdlebuffer */
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 	for (i = 0; i < n; i++) {
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 		Cur->Buffer2 = pIdleBuffer->Head->Buffer1;
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 		Cur->scList2 = pIdleBuffer->Head->scList1;
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@@ -1198,7 +1181,7 @@
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 	struct device *pdev = &dev->pci_dev->dev;
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 	int i;
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-	tasklet_init(&dev->event_tasklet, event_tasklet, (unsigned long)dev);
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+	tasklet_setup(&dev->event_tasklet, event_tasklet);
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 	memset_io(dev->iomem + 0xc000, 0x00, 0x220);
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 	memset_io(dev->iomem + 0xc400, 0x00, 0x100);
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@@ -1462,7 +1445,7 @@
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 	struct ngene_info *ni = dev->card_info;
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 	int io = ni->io_type[nr];
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-	tasklet_init(&chan->demux_tasklet, demux_tasklet, (unsigned long)chan);
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+	tasklet_setup(&chan->demux_tasklet, demux_tasklet);
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 	chan->users = 0;
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 	chan->type = io;
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 	chan->mode = chan->type;	/* for now only one mode */