From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/firewire/core-iso.c | 42 +++++++++---------------------------------
1 files changed, 9 insertions(+), 33 deletions(-)
diff --git a/kernel/drivers/firewire/core-iso.c b/kernel/drivers/firewire/core-iso.c
index 051327a..af70e74 100644
--- a/kernel/drivers/firewire/core-iso.c
+++ b/kernel/drivers/firewire/core-iso.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Isochronous I/O functionality:
* - Isochronous DMA context management
* - Isochronous bus resource management (channels, bandwidth), client side
*
* Copyright (C) 2006 Kristian Hoegsberg <krh@bitplanet.net>
- *
- * 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, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <linux/dma-mapping.h>
@@ -103,24 +90,6 @@
return ret;
}
EXPORT_SYMBOL(fw_iso_buffer_init);
-
-int fw_iso_buffer_map_vma(struct fw_iso_buffer *buffer,
- struct vm_area_struct *vma)
-{
- unsigned long uaddr;
- int i, err;
-
- uaddr = vma->vm_start;
- for (i = 0; i < buffer->page_count; i++) {
- err = vm_insert_page(vma, uaddr, buffer->pages[i]);
- if (err)
- return err;
-
- uaddr += PAGE_SIZE;
- }
-
- return 0;
-}
void fw_iso_buffer_destroy(struct fw_iso_buffer *buffer,
struct fw_card *card)
@@ -308,7 +277,7 @@
if ((data[0] & bit) == (data[1] & bit))
continue;
- /* 1394-1995 IRM, fall through to retry. */
+ fallthrough; /* It's a 1394-1995 IRM, retry */
default:
if (retry) {
retry--;
@@ -337,9 +306,16 @@
/**
* fw_iso_resource_manage() - Allocate or deallocate a channel and/or bandwidth
+ * @card: card interface for this action
+ * @generation: bus generation
+ * @channels_mask: bitmask for channel allocation
+ * @channel: pointer for returning channel allocation result
+ * @bandwidth: pointer for returning bandwidth allocation result
+ * @allocate: whether to allocate (true) or deallocate (false)
*
* In parameters: card, generation, channels_mask, bandwidth, allocate
* Out parameters: channel, bandwidth
+ *
* This function blocks (sleeps) during communication with the IRM.
*
* Allocates or deallocates at most one channel out of channels_mask.
--
Gitblit v1.6.2