Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/net/6lowpan/6lowpan_i.h b/net/6lowpan/6lowpan_i.h
index 53cf446..01853ce 100644
--- a/net/6lowpan/6lowpan_i.h
+++ b/net/6lowpan/6lowpan_i.h
@@ -18,24 +18,16 @@
int addrconf_ifid_802154_6lowpan(u8 *eui, struct net_device *dev);
#ifdef CONFIG_6LOWPAN_DEBUGFS
-int lowpan_dev_debugfs_init(struct net_device *dev);
+void lowpan_dev_debugfs_init(struct net_device *dev);
void lowpan_dev_debugfs_exit(struct net_device *dev);
-int __init lowpan_debugfs_init(void);
+void __init lowpan_debugfs_init(void);
void lowpan_debugfs_exit(void);
#else
-static inline int lowpan_dev_debugfs_init(struct net_device *dev)
-{
- return 0;
-}
-
+static inline void lowpan_dev_debugfs_init(struct net_device *dev) { }
static inline void lowpan_dev_debugfs_exit(struct net_device *dev) { }
-static inline int __init lowpan_debugfs_init(void)
-{
- return 0;
-}
-
+static inline void __init lowpan_debugfs_init(void) { }
static inline void lowpan_debugfs_exit(void) { }
#endif /* CONFIG_6LOWPAN_DEBUGFS */
diff --git a/net/6lowpan/Kconfig b/net/6lowpan/Kconfig
index 9c05151..4c1f4c0 100644
--- a/net/6lowpan/Kconfig
+++ b/net/6lowpan/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
menuconfig 6LOWPAN
tristate "6LoWPAN Support"
depends on IPV6
diff --git a/net/6lowpan/core.c b/net/6lowpan/core.c
index 40d3d72..a068757 100644
--- a/net/6lowpan/core.c
+++ b/net/6lowpan/core.c
@@ -1,11 +1,5 @@
-/* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * 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.
+// SPDX-License-Identifier: GPL-2.0-only
+/*
*
* Authors:
* (C) 2015 Pengutronix, Alexander Aring <aar@pengutronix.de>
@@ -48,9 +42,7 @@
if (ret < 0)
return ret;
- ret = lowpan_dev_debugfs_init(dev);
- if (ret < 0)
- unregister_netdevice(dev);
+ lowpan_dev_debugfs_init(dev);
return ret;
}
@@ -158,9 +150,7 @@
{
int ret;
- ret = lowpan_debugfs_init();
- if (ret < 0)
- return ret;
+ lowpan_debugfs_init();
ret = register_netdevice_notifier(&lowpan_notifier);
if (ret < 0) {
diff --git a/net/6lowpan/debugfs.c b/net/6lowpan/debugfs.c
index 24915e0..1c140af 100644
--- a/net/6lowpan/debugfs.c
+++ b/net/6lowpan/debugfs.c
@@ -1,11 +1,5 @@
-/* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * 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.
+// SPDX-License-Identifier: GPL-2.0-only
+/*
*
* Authors:
* (C) 2015 Pengutronix, Alexander Aring <aar@pengutronix.de>
@@ -41,9 +35,9 @@
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(lowpan_ctx_flag_active_fops,
- lowpan_ctx_flag_active_get,
- lowpan_ctx_flag_active_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(lowpan_ctx_flag_active_fops,
+ lowpan_ctx_flag_active_get,
+ lowpan_ctx_flag_active_set, "%llu\n");
static int lowpan_ctx_flag_c_set(void *data, u64 val)
{
@@ -66,8 +60,8 @@
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(lowpan_ctx_flag_c_fops, lowpan_ctx_flag_c_get,
- lowpan_ctx_flag_c_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(lowpan_ctx_flag_c_fops, lowpan_ctx_flag_c_get,
+ lowpan_ctx_flag_c_set, "%llu\n");
static int lowpan_ctx_plen_set(void *data, u64 val)
{
@@ -97,8 +91,8 @@
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(lowpan_ctx_plen_fops, lowpan_ctx_plen_get,
- lowpan_ctx_plen_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(lowpan_ctx_plen_fops, lowpan_ctx_plen_get,
+ lowpan_ctx_plen_set, "%llu\n");
static int lowpan_ctx_pfx_show(struct seq_file *file, void *offset)
{
@@ -169,11 +163,11 @@
.release = single_release,
};
-static int lowpan_dev_debugfs_ctx_init(struct net_device *dev,
- struct dentry *ctx, u8 id)
+static void lowpan_dev_debugfs_ctx_init(struct net_device *dev,
+ struct dentry *ctx, u8 id)
{
struct lowpan_dev *ldev = lowpan_dev(dev);
- struct dentry *dentry, *root;
+ struct dentry *root;
char buf[32];
WARN_ON_ONCE(id > LOWPAN_IPHC_CTX_TABLE_SIZE);
@@ -181,34 +175,18 @@
sprintf(buf, "%d", id);
root = debugfs_create_dir(buf, ctx);
- if (!root)
- return -EINVAL;
- dentry = debugfs_create_file("active", 0644, root,
- &ldev->ctx.table[id],
- &lowpan_ctx_flag_active_fops);
- if (!dentry)
- return -EINVAL;
+ debugfs_create_file("active", 0644, root, &ldev->ctx.table[id],
+ &lowpan_ctx_flag_active_fops);
- dentry = debugfs_create_file("compression", 0644, root,
- &ldev->ctx.table[id],
- &lowpan_ctx_flag_c_fops);
- if (!dentry)
- return -EINVAL;
+ debugfs_create_file("compression", 0644, root, &ldev->ctx.table[id],
+ &lowpan_ctx_flag_c_fops);
- dentry = debugfs_create_file("prefix", 0644, root,
- &ldev->ctx.table[id],
- &lowpan_ctx_pfx_fops);
- if (!dentry)
- return -EINVAL;
+ debugfs_create_file("prefix", 0644, root, &ldev->ctx.table[id],
+ &lowpan_ctx_pfx_fops);
- dentry = debugfs_create_file("prefix_len", 0644, root,
- &ldev->ctx.table[id],
- &lowpan_ctx_plen_fops);
- if (!dentry)
- return -EINVAL;
-
- return 0;
+ debugfs_create_file("prefix_len", 0644, root, &ldev->ctx.table[id],
+ &lowpan_ctx_plen_fops);
}
static int lowpan_context_show(struct seq_file *file, void *offset)
@@ -232,18 +210,7 @@
return 0;
}
-
-static int lowpan_context_open(struct inode *inode, struct file *file)
-{
- return single_open(file, lowpan_context_show, inode->i_private);
-}
-
-static const struct file_operations lowpan_context_fops = {
- .open = lowpan_context_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(lowpan_context);
static int lowpan_short_addr_get(void *data, u64 *val)
{
@@ -256,67 +223,42 @@
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(lowpan_short_addr_fops, lowpan_short_addr_get,
- NULL, "0x%04llx\n");
+DEFINE_DEBUGFS_ATTRIBUTE(lowpan_short_addr_fops, lowpan_short_addr_get, NULL,
+ "0x%04llx\n");
-static int lowpan_dev_debugfs_802154_init(const struct net_device *dev,
+static void lowpan_dev_debugfs_802154_init(const struct net_device *dev,
struct lowpan_dev *ldev)
{
- struct dentry *dentry, *root;
+ struct dentry *root;
if (!lowpan_is_ll(dev, LOWPAN_LLTYPE_IEEE802154))
- return 0;
+ return;
root = debugfs_create_dir("ieee802154", ldev->iface_debugfs);
- if (!root)
- return -EINVAL;
- dentry = debugfs_create_file("short_addr", 0444, root,
- lowpan_802154_dev(dev)->wdev->ieee802154_ptr,
- &lowpan_short_addr_fops);
- if (!dentry)
- return -EINVAL;
-
- return 0;
+ debugfs_create_file("short_addr", 0444, root,
+ lowpan_802154_dev(dev)->wdev->ieee802154_ptr,
+ &lowpan_short_addr_fops);
}
-int lowpan_dev_debugfs_init(struct net_device *dev)
+void lowpan_dev_debugfs_init(struct net_device *dev)
{
struct lowpan_dev *ldev = lowpan_dev(dev);
- struct dentry *contexts, *dentry;
- int ret, i;
+ struct dentry *contexts;
+ int i;
/* creating the root */
ldev->iface_debugfs = debugfs_create_dir(dev->name, lowpan_debugfs);
- if (!ldev->iface_debugfs)
- goto fail;
contexts = debugfs_create_dir("contexts", ldev->iface_debugfs);
- if (!contexts)
- goto remove_root;
- dentry = debugfs_create_file("show", 0644, contexts,
- &lowpan_dev(dev)->ctx,
- &lowpan_context_fops);
- if (!dentry)
- goto remove_root;
+ debugfs_create_file("show", 0644, contexts, &lowpan_dev(dev)->ctx,
+ &lowpan_context_fops);
- for (i = 0; i < LOWPAN_IPHC_CTX_TABLE_SIZE; i++) {
- ret = lowpan_dev_debugfs_ctx_init(dev, contexts, i);
- if (ret < 0)
- goto remove_root;
- }
+ for (i = 0; i < LOWPAN_IPHC_CTX_TABLE_SIZE; i++)
+ lowpan_dev_debugfs_ctx_init(dev, contexts, i);
- ret = lowpan_dev_debugfs_802154_init(dev, ldev);
- if (ret < 0)
- goto remove_root;
-
- return 0;
-
-remove_root:
- lowpan_dev_debugfs_exit(dev);
-fail:
- return -EINVAL;
+ lowpan_dev_debugfs_802154_init(dev, ldev);
}
void lowpan_dev_debugfs_exit(struct net_device *dev)
@@ -324,13 +266,9 @@
debugfs_remove_recursive(lowpan_dev(dev)->iface_debugfs);
}
-int __init lowpan_debugfs_init(void)
+void __init lowpan_debugfs_init(void)
{
lowpan_debugfs = debugfs_create_dir("6lowpan", NULL);
- if (!lowpan_debugfs)
- return -EINVAL;
-
- return 0;
}
void lowpan_debugfs_exit(void)
diff --git a/net/6lowpan/ndisc.c b/net/6lowpan/ndisc.c
index 941df2f..16be8f8 100644
--- a/net/6lowpan/ndisc.c
+++ b/net/6lowpan/ndisc.c
@@ -1,11 +1,5 @@
-/* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * 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.
+// SPDX-License-Identifier: GPL-2.0-only
+/*
*
* Authors:
* (C) 2016 Pengutronix, Alexander Aring <aar@pengutronix.de>
diff --git a/net/6lowpan/nhc.c b/net/6lowpan/nhc.c
index 4fa2fdd..d6bbbd4 100644
--- a/net/6lowpan/nhc.c
+++ b/net/6lowpan/nhc.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN next header compression
*
- *
* Authors:
* Alexander Aring <aar@pengutronix.de>
- *
- * 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.
*/
#include <linux/netdevice.h>
@@ -18,7 +13,7 @@
#include "nhc.h"
static struct rb_root rb_root = RB_ROOT;
-static struct lowpan_nhc *lowpan_nexthdr_nhcs[NEXTHDR_MAX];
+static struct lowpan_nhc *lowpan_nexthdr_nhcs[NEXTHDR_MAX + 1];
static DEFINE_SPINLOCK(lowpan_nhc_lock);
static int lowpan_nhc_insert(struct lowpan_nhc *nhc)
diff --git a/net/6lowpan/nhc_dest.c b/net/6lowpan/nhc_dest.c
index 0b292c9..4768a94 100644
--- a/net/6lowpan/nhc_dest.c
+++ b/net/6lowpan/nhc_dest.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN IPv6 Destination Options Header compression according to
* RFC6282
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_fragment.c b/net/6lowpan/nhc_fragment.c
index 473dbc5..be85f07 100644
--- a/net/6lowpan/nhc_fragment.c
+++ b/net/6lowpan/nhc_fragment.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN IPv6 Fragment Header compression according to RFC6282
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_ext_dest.c b/net/6lowpan/nhc_ghc_ext_dest.c
index 9887b3a..a9137f1 100644
--- a/net/6lowpan/nhc_ghc_ext_dest.c
+++ b/net/6lowpan/nhc_ghc_ext_dest.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN Extension Header compression according to RFC7400
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_ext_frag.c b/net/6lowpan/nhc_ghc_ext_frag.c
index 1308b79..d49b745 100644
--- a/net/6lowpan/nhc_ghc_ext_frag.c
+++ b/net/6lowpan/nhc_ghc_ext_frag.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN Extension Header compression according to RFC7400
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_ext_hop.c b/net/6lowpan/nhc_ghc_ext_hop.c
index baec86f..3beedf5 100644
--- a/net/6lowpan/nhc_ghc_ext_hop.c
+++ b/net/6lowpan/nhc_ghc_ext_hop.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN Extension Header compression according to RFC7400
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_ext_route.c b/net/6lowpan/nhc_ghc_ext_route.c
index d7e5bd7..70dc0ea 100644
--- a/net/6lowpan/nhc_ghc_ext_route.c
+++ b/net/6lowpan/nhc_ghc_ext_route.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN Extension Header compression according to RFC7400
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_icmpv6.c b/net/6lowpan/nhc_ghc_icmpv6.c
index 32e7c2c..339ceff 100644
--- a/net/6lowpan/nhc_ghc_icmpv6.c
+++ b/net/6lowpan/nhc_ghc_icmpv6.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN ICMPv6 compression according to RFC7400
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_ghc_udp.c b/net/6lowpan/nhc_ghc_udp.c
index 17beefa..f47fec6 100644
--- a/net/6lowpan/nhc_ghc_udp.c
+++ b/net/6lowpan/nhc_ghc_udp.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN UDP compression according to RFC7400
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_hop.c b/net/6lowpan/nhc_hop.c
index 1eb66be..158fc19 100644
--- a/net/6lowpan/nhc_hop.c
+++ b/net/6lowpan/nhc_hop.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN IPv6 Hop-by-Hop Options Header compression according to RFC6282
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_ipv6.c b/net/6lowpan/nhc_ipv6.c
index 2313d16..08b7589 100644
--- a/net/6lowpan/nhc_ipv6.c
+++ b/net/6lowpan/nhc_ipv6.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN IPv6 Header compression according to RFC6282
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_mobility.c b/net/6lowpan/nhc_mobility.c
index 60d3f38..ac8fca6 100644
--- a/net/6lowpan/nhc_mobility.c
+++ b/net/6lowpan/nhc_mobility.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN IPv6 Mobility Header compression according to RFC6282
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_routing.c b/net/6lowpan/nhc_routing.c
index c393280..1c17402 100644
--- a/net/6lowpan/nhc_routing.c
+++ b/net/6lowpan/nhc_routing.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN IPv6 Routing Header compression according to RFC6282
- *
- * 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.
*/
#include "nhc.h"
diff --git a/net/6lowpan/nhc_udp.c b/net/6lowpan/nhc_udp.c
index 225d919..8a35075 100644
--- a/net/6lowpan/nhc_udp.c
+++ b/net/6lowpan/nhc_udp.c
@@ -1,18 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN IPv6 UDP compression according to RFC6282
*
- *
* Authors:
* Alexander Aring <aar@pengutronix.de>
*
* Orignal written by:
* Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
* Jon Smirl <jonsmirl@gmail.com>
- *
- * 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.
*/
#include "nhc.h"