mk-rootfs.sh

hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/drivers/firewire/core-iso.c
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@@ -1,23 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Isochronous I/O functionality:
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  *   - Isochronous DMA context management
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  *   - Isochronous bus resource management (channels, bandwidth), client side
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  *
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  * Copyright (C) 2006 Kristian Hoegsberg <krh@bitplanet.net>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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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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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software Foundation,
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- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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  */
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 #include <linux/dma-mapping.h>
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@@ -103,24 +90,6 @@
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 	return ret;
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 }
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 EXPORT_SYMBOL(fw_iso_buffer_init);
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-
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-int fw_iso_buffer_map_vma(struct fw_iso_buffer *buffer,
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-			  struct vm_area_struct *vma)
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-{
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-	unsigned long uaddr;
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-	int i, err;
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-
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-	uaddr = vma->vm_start;
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-	for (i = 0; i < buffer->page_count; i++) {
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-		err = vm_insert_page(vma, uaddr, buffer->pages[i]);
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-		if (err)
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-			return err;
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-
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-		uaddr += PAGE_SIZE;
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-	}
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-
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-	return 0;
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-}
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 void fw_iso_buffer_destroy(struct fw_iso_buffer *buffer,
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 			   struct fw_card *card)
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@@ -308,7 +277,7 @@
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 			if ((data[0] & bit) == (data[1] & bit))
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 				continue;
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-			/* 1394-1995 IRM, fall through to retry. */
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+			fallthrough;	/* It's a 1394-1995 IRM, retry */
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 		default:
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 			if (retry) {
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 				retry--;
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@@ -337,9 +306,16 @@
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 /**
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  * fw_iso_resource_manage() - Allocate or deallocate a channel and/or bandwidth
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+ * @card: card interface for this action
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+ * @generation: bus generation
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+ * @channels_mask: bitmask for channel allocation
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+ * @channel: pointer for returning channel allocation result
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+ * @bandwidth: pointer for returning bandwidth allocation result
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+ * @allocate: whether to allocate (true) or deallocate (false)
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  *
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  * In parameters: card, generation, channels_mask, bandwidth, allocate
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  * Out parameters: channel, bandwidth
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+ *
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  * This function blocks (sleeps) during communication with the IRM.
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  *
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  * Allocates or deallocates at most one channel out of channels_mask.