tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git debugfs_cleanup head: ead253d78760f569593267b87592175cc66b0f99 commit: a1e3d1d072efed7a835376d1b17c21ae9021b9a7 [102/109] 6lowpan: fix changelog config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout a1e3d1d072efed7a835376d1b17c21ae9021b9a7 # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=m68k
All error/warnings (new ones prefixed by >>):
net/6lowpan/debugfs.c: In function 'lowpan_dev_debugfs_ctx_init':
>> net/6lowpan/debugfs.c:182:2: error: 'root' undeclared (first use in this
>> function); did you mean 'ror8'?
root = debugfs_create_dir(buf, ctx);
^~~~
ror8
net/6lowpan/debugfs.c:182:2: note: each undeclared identifier is reported
only once for each function it appears in
>> net/6lowpan/debugfs.c:195:1: warning: no return statement in function
>> returning non-void [-Wreturn-type]
}
^
net/6lowpan/debugfs.c: In function 'lowpan_dev_debugfs_802154_init':
>> net/6lowpan/debugfs.c:240:10: warning: 'return' with a value, in function
>> returning void
return 0;
^
net/6lowpan/debugfs.c:234:13: note: declared here
static void lowpan_dev_debugfs_802154_init(const struct net_device *dev,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/6lowpan/debugfs.c: At top level:
>> net/6lowpan/debugfs.c:249:5: error: conflicting types for
>> 'lowpan_dev_debugfs_init'
int lowpan_dev_debugfs_init(struct net_device *dev)
^~~~~~~~~~~~~~~~~~~~~~~
In file included from net/6lowpan/debugfs.c:17:0:
net/6lowpan/6lowpan_i.h:21:6: note: previous declaration of
'lowpan_dev_debugfs_init' was here
void lowpan_dev_debugfs_init(struct net_device *dev);
^~~~~~~~~~~~~~~~~~~~~~~
net/6lowpan/debugfs.c: In function 'lowpan_dev_debugfs_init':
>> net/6lowpan/debugfs.c:267:1: warning: control reaches end of non-void
>> function [-Wreturn-type]
}
^
vim +182 net/6lowpan/debugfs.c
5609c185 Alexander Aring 2016-02-22 171
5609c185 Alexander Aring 2016-02-22 172 static int
lowpan_dev_debugfs_ctx_init(struct net_device *dev,
5609c185 Alexander Aring 2016-02-22 173
struct dentry *ctx, u8 id)
5609c185 Alexander Aring 2016-02-22 174 {
2e4d60cb Alexander Aring 2016-04-11 175 struct lowpan_dev *ldev =
lowpan_dev(dev);
5609c185 Alexander Aring 2016-02-22 176 char buf[32];
5609c185 Alexander Aring 2016-02-22 177
5609c185 Alexander Aring 2016-02-22 178 WARN_ON_ONCE(id >
LOWPAN_IPHC_CTX_TABLE_SIZE);
5609c185 Alexander Aring 2016-02-22 179
5609c185 Alexander Aring 2016-02-22 180 sprintf(buf, "%d", id);
5609c185 Alexander Aring 2016-02-22 181
5609c185 Alexander Aring 2016-02-22 @182 root = debugfs_create_dir(buf,
ctx);
5609c185 Alexander Aring 2016-02-22 183
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 184 debugfs_create_file("active",
0644, root, &ldev->ctx.table[id],
5609c185 Alexander Aring 2016-02-22 185
&lowpan_ctx_flag_active_fops);
5609c185 Alexander Aring 2016-02-22 186
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 187
debugfs_create_file("compression", 0644, root, &ldev->ctx.table[id],
5609c185 Alexander Aring 2016-02-22 188
&lowpan_ctx_flag_c_fops);
5609c185 Alexander Aring 2016-02-22 189
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 190 debugfs_create_file("prefix",
0644, root, &ldev->ctx.table[id],
5609c185 Alexander Aring 2016-02-22 191
&lowpan_ctx_pfx_fops);
5609c185 Alexander Aring 2016-02-22 192
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 193
debugfs_create_file("prefix_len", 0644, root, &ldev->ctx.table[id],
5609c185 Alexander Aring 2016-02-22 194
&lowpan_ctx_plen_fops);
5609c185 Alexander Aring 2016-02-22 @195 }
5609c185 Alexander Aring 2016-02-22 196
5609c185 Alexander Aring 2016-02-22 197 static int
lowpan_context_show(struct seq_file *file, void *offset)
5609c185 Alexander Aring 2016-02-22 198 {
5609c185 Alexander Aring 2016-02-22 199 struct lowpan_iphc_ctx_table *t
= file->private;
5609c185 Alexander Aring 2016-02-22 200 int i;
5609c185 Alexander Aring 2016-02-22 201
5609c185 Alexander Aring 2016-02-22 202 seq_printf(file,
"%3s|%-43s|%c\n", "cid", "prefix", 'C');
5609c185 Alexander Aring 2016-02-22 203 seq_puts(file,
"-------------------------------------------------\n");
5609c185 Alexander Aring 2016-02-22 204
5609c185 Alexander Aring 2016-02-22 205 spin_lock_bh(&t->lock);
5609c185 Alexander Aring 2016-02-22 206 for (i = 0; i <
LOWPAN_IPHC_CTX_TABLE_SIZE; i++) {
5609c185 Alexander Aring 2016-02-22 207 if
(!lowpan_iphc_ctx_is_active(&t->table[i]))
5609c185 Alexander Aring 2016-02-22 208 continue;
5609c185 Alexander Aring 2016-02-22 209
5609c185 Alexander Aring 2016-02-22 210 seq_printf(file,
"%3d|%39pI6c/%-3d|%d\n", t->table[i].id,
5609c185 Alexander Aring 2016-02-22 211
&t->table[i].pfx, t->table[i].plen,
5609c185 Alexander Aring 2016-02-22 212
lowpan_iphc_ctx_is_compression(&t->table[i]));
5609c185 Alexander Aring 2016-02-22 213 }
5609c185 Alexander Aring 2016-02-22 214 spin_unlock_bh(&t->lock);
5609c185 Alexander Aring 2016-02-22 215
5609c185 Alexander Aring 2016-02-22 216 return 0;
5609c185 Alexander Aring 2016-02-22 217 }
f79ba430 Yangtao Li 2018-12-15 218
DEFINE_SHOW_ATTRIBUTE(lowpan_context);
5609c185 Alexander Aring 2016-02-22 219
cfce9465 Alexander Aring 2016-06-15 220 static int
lowpan_short_addr_get(void *data, u64 *val)
cfce9465 Alexander Aring 2016-06-15 221 {
cfce9465 Alexander Aring 2016-06-15 222 struct wpan_dev *wdev = data;
cfce9465 Alexander Aring 2016-06-15 223
cfce9465 Alexander Aring 2016-06-15 224 rtnl_lock();
cfce9465 Alexander Aring 2016-06-15 225 *val =
le16_to_cpu(wdev->short_addr);
cfce9465 Alexander Aring 2016-06-15 226 rtnl_unlock();
cfce9465 Alexander Aring 2016-06-15 227
cfce9465 Alexander Aring 2016-06-15 228 return 0;
cfce9465 Alexander Aring 2016-06-15 229 }
cfce9465 Alexander Aring 2016-06-15 230
cfce9465 Alexander Aring 2016-06-15 231
DEFINE_SIMPLE_ATTRIBUTE(lowpan_short_addr_fops, lowpan_short_addr_get,
cfce9465 Alexander Aring 2016-06-15 232 NULL,
"0x%04llx\n");
cfce9465 Alexander Aring 2016-06-15 233
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 234 static void
lowpan_dev_debugfs_802154_init(const struct net_device *dev,
cfce9465 Alexander Aring 2016-06-15 235
struct lowpan_dev *ldev)
cfce9465 Alexander Aring 2016-06-15 236 {
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 237 struct dentry *root;
cfce9465 Alexander Aring 2016-06-15 238
cfce9465 Alexander Aring 2016-06-15 239 if (!lowpan_is_ll(dev,
LOWPAN_LLTYPE_IEEE802154))
cfce9465 Alexander Aring 2016-06-15 @240 return 0;
cfce9465 Alexander Aring 2016-06-15 241
cfce9465 Alexander Aring 2016-06-15 242 root =
debugfs_create_dir("ieee802154", ldev->iface_debugfs);
cfce9465 Alexander Aring 2016-06-15 243
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 244
debugfs_create_file("short_addr", 0444, root,
cfce9465 Alexander Aring 2016-06-15 245
lowpan_802154_dev(dev)->wdev->ieee802154_ptr,
cfce9465 Alexander Aring 2016-06-15 246
&lowpan_short_addr_fops);
cfce9465 Alexander Aring 2016-06-15 247 }
cfce9465 Alexander Aring 2016-06-15 248
b1815fd9 Alexander Aring 2015-12-09 @249 int lowpan_dev_debugfs_init(struct
net_device *dev)
b1815fd9 Alexander Aring 2015-12-09 250 {
2e4d60cb Alexander Aring 2016-04-11 251 struct lowpan_dev *ldev =
lowpan_dev(dev);
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 252 struct dentry *contexts;
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 253 int i;
b1815fd9 Alexander Aring 2015-12-09 254
b1815fd9 Alexander Aring 2015-12-09 255 /* creating the root */
2e4d60cb Alexander Aring 2016-04-11 256 ldev->iface_debugfs =
debugfs_create_dir(dev->name, lowpan_debugfs);
b1815fd9 Alexander Aring 2015-12-09 257
2e4d60cb Alexander Aring 2016-04-11 258 contexts =
debugfs_create_dir("contexts", ldev->iface_debugfs);
5609c185 Alexander Aring 2016-02-22 259
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 260 debugfs_create_file("show",
0644, contexts, &lowpan_dev(dev)->ctx,
5609c185 Alexander Aring 2016-02-22 261
&lowpan_context_fops);
cfce9465 Alexander Aring 2016-06-15 262
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 263 for (i = 0; i <
LOWPAN_IPHC_CTX_TABLE_SIZE; i++)
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 264
lowpan_dev_debugfs_ctx_init(dev, contexts, i);
b1815fd9 Alexander Aring 2015-12-09 265
a1e3d1d0 Greg Kroah-Hartman 2019-01-04 266
lowpan_dev_debugfs_802154_init(dev, ldev);
b1815fd9 Alexander Aring 2015-12-09 @267 }
b1815fd9 Alexander Aring 2015-12-09 268
:::::: The code at line 182 was first introduced by commit
:::::: 5609c185f24dffca5f6a9c127106869da150be03 6lowpan: iphc: add support for
stateful compression
:::::: TO: Alexander Aring <a...@pengutronix.de>
:::::: CC: Marcel Holtmann <mar...@holtmann.org>
---
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