* [ammarfaizi2-block:google/android/kernel/common/deprecated/android-4.14-p-release 65/6167] drivers/md/dm-linear.c:29:5: warning: no previous prototype for function 'dm_linear_ctr'
@ 2023-01-23 22:16 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-01-23 22:16 UTC (permalink / raw)
To: Ammar Faizi, GNU/Weeb Mailing List; +Cc: oe-kbuild-all
tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/deprecated/android-4.14-p-release
head: 0ca5d5ac9152d01b3494fb2efb5390319eb9904a
commit: 47c3ee9725a835ea9aed82513fd278f6ca2dff0a [65/6167] ANDROID: dm: android-verity: Mounting root as linear device when verity disabled
config: x86_64-randconfig-a013-20230123 (https://download.01.org/0day-ci/archive/20230124/[email protected]/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/ammarfaizi2/linux-block/commit/47c3ee9725a835ea9aed82513fd278f6ca2dff0a
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block google/android/kernel/common/deprecated/android-4.14-p-release
git checkout 47c3ee9725a835ea9aed82513fd278f6ca2dff0a
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash LDFLAGS=-z max-page-size=0x200000 drivers/md/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>
All warnings (new ones prefixed by >>):
>> drivers/md/dm-linear.c:29:5: warning: no previous prototype for function 'dm_linear_ctr' [-Wmissing-prototypes]
int dm_linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
^
drivers/md/dm-linear.c:29:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int dm_linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
^
static
>> drivers/md/dm-linear.c:72:6: warning: no previous prototype for function 'dm_linear_dtr' [-Wmissing-prototypes]
void dm_linear_dtr(struct dm_target *ti)
^
drivers/md/dm-linear.c:72:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void dm_linear_dtr(struct dm_target *ti)
^
static
>> drivers/md/dm-linear.c:97:5: warning: no previous prototype for function 'dm_linear_map' [-Wmissing-prototypes]
int dm_linear_map(struct dm_target *ti, struct bio *bio)
^
drivers/md/dm-linear.c:97:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int dm_linear_map(struct dm_target *ti, struct bio *bio)
^
static
>> drivers/md/dm-linear.c:115:6: warning: no previous prototype for function 'dm_linear_status' [-Wmissing-prototypes]
void dm_linear_status(struct dm_target *ti, status_type_t type,
^
drivers/md/dm-linear.c:115:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void dm_linear_status(struct dm_target *ti, status_type_t type,
^
static
>> drivers/md/dm-linear.c:149:5: warning: no previous prototype for function 'dm_linear_iterate_devices' [-Wmissing-prototypes]
int dm_linear_iterate_devices(struct dm_target *ti,
^
drivers/md/dm-linear.c:149:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int dm_linear_iterate_devices(struct dm_target *ti,
^
static
5 warnings generated.
vim +/dm_linear_ctr +29 drivers/md/dm-linear.c
25
26 /*
27 * Construct a linear mapping: <dev_path> <offset>
28 */
> 29 int dm_linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
30 {
31 struct linear_c *lc;
32 unsigned long long tmp;
33 char dummy;
34 int ret;
35
36 if (argc != 2) {
37 ti->error = "Invalid argument count";
38 return -EINVAL;
39 }
40
41 lc = kmalloc(sizeof(*lc), GFP_KERNEL);
42 if (lc == NULL) {
43 ti->error = "Cannot allocate linear context";
44 return -ENOMEM;
45 }
46
47 ret = -EINVAL;
48 if (sscanf(argv[1], "%llu%c", &tmp, &dummy) != 1) {
49 ti->error = "Invalid device sector";
50 goto bad;
51 }
52 lc->start = tmp;
53
54 ret = dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), &lc->dev);
55 if (ret) {
56 ti->error = "Device lookup failed";
57 goto bad;
58 }
59
60 ti->num_flush_bios = 1;
61 ti->num_discard_bios = 1;
62 ti->num_write_same_bios = 1;
63 ti->num_write_zeroes_bios = 1;
64 ti->private = lc;
65 return 0;
66
67 bad:
68 kfree(lc);
69 return ret;
70 }
71
> 72 void dm_linear_dtr(struct dm_target *ti)
73 {
74 struct linear_c *lc = (struct linear_c *) ti->private;
75
76 dm_put_device(ti, lc->dev);
77 kfree(lc);
78 }
79
80 static sector_t linear_map_sector(struct dm_target *ti, sector_t bi_sector)
81 {
82 struct linear_c *lc = ti->private;
83
84 return lc->start + dm_target_offset(ti, bi_sector);
85 }
86
87 static void linear_map_bio(struct dm_target *ti, struct bio *bio)
88 {
89 struct linear_c *lc = ti->private;
90
91 bio_set_dev(bio, lc->dev->bdev);
92 if (bio_sectors(bio) || bio_op(bio) == REQ_OP_ZONE_RESET)
93 bio->bi_iter.bi_sector =
94 linear_map_sector(ti, bio->bi_iter.bi_sector);
95 }
96
> 97 int dm_linear_map(struct dm_target *ti, struct bio *bio)
98 {
99 linear_map_bio(ti, bio);
100
101 return DM_MAPIO_REMAPPED;
102 }
103
104 static int linear_end_io(struct dm_target *ti, struct bio *bio,
105 blk_status_t *error)
106 {
107 struct linear_c *lc = ti->private;
108
109 if (!*error && bio_op(bio) == REQ_OP_ZONE_REPORT)
110 dm_remap_zone_report(ti, bio, lc->start);
111
112 return DM_ENDIO_DONE;
113 }
114
> 115 void dm_linear_status(struct dm_target *ti, status_type_t type,
116 unsigned status_flags, char *result, unsigned maxlen)
117 {
118 struct linear_c *lc = (struct linear_c *) ti->private;
119
120 switch (type) {
121 case STATUSTYPE_INFO:
122 result[0] = '\0';
123 break;
124
125 case STATUSTYPE_TABLE:
126 snprintf(result, maxlen, "%s %llu", lc->dev->name,
127 (unsigned long long)lc->start);
128 break;
129 }
130 }
131
132 static int dm_linear_prepare_ioctl(struct dm_target *ti,
133 struct block_device **bdev, fmode_t *mode)
134 {
135 struct linear_c *lc = (struct linear_c *) ti->private;
136 struct dm_dev *dev = lc->dev;
137
138 *bdev = dev->bdev;
139
140 /*
141 * Only pass ioctls through if the device sizes match exactly.
142 */
143 if (lc->start ||
144 ti->len != i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT)
145 return 1;
146 return 0;
147 }
148
> 149 int dm_linear_iterate_devices(struct dm_target *ti,
150 iterate_devices_callout_fn fn, void *data)
151 {
152 struct linear_c *lc = ti->private;
153
154 return fn(ti, lc->dev, lc->start, ti->len, data);
155 }
156
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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2023-01-23 22:16 [ammarfaizi2-block:google/android/kernel/common/deprecated/android-4.14-p-release 65/6167] drivers/md/dm-linear.c:29:5: warning: no previous prototype for function 'dm_linear_ctr' kernel test robot
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