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Message-ID: <202408120903.UYNxKoDx-lkp@intel.com>
Date: Mon, 12 Aug 2024 10:15:24 +0800
From: kernel test robot <lkp@...el.com>
To: Abhinav Jain <jain.abhinav177@...il.com>, idryomov@...il.com,
xiubli@...hat.com, davem@...emloft.net, edumazet@...gle.com,
kuba@...nel.org, pabeni@...hat.com, ceph-devel@...r.kernel.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, skhan@...uxfoundation.org,
javier.carrasco.cruz@...il.com,
Abhinav Jain <jain.abhinav177@...il.com>
Subject: Re: [PATCH net] libceph: Make the input const as per the TODO
Hi Abhinav,
kernel test robot noticed the following build errors:
[auto build test ERROR on net/main]
url: https://github.com/intel-lab-lkp/linux/commits/Abhinav-Jain/libceph-Make-the-input-const-as-per-the-TODO/20240812-033900
base: net/main
patch link: https://lore.kernel.org/r/20240811193645.1082042-1-jain.abhinav177%40gmail.com
patch subject: [PATCH net] libceph: Make the input const as per the TODO
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20240812/202408120903.UYNxKoDx-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240812/202408120903.UYNxKoDx-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408120903.UYNxKoDx-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
>> net/ceph/crypto.c:89:5: error: conflicting types for 'ceph_crypto_key_decode'; have 'int(struct ceph_crypto_key *, const void **, const void *)'
89 | int ceph_crypto_key_decode(struct ceph_crypto_key *key, const void **p, const void *end)
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from net/ceph/crypto.c:17:
net/ceph/crypto.h:25:5: note: previous declaration of 'ceph_crypto_key_decode' with type 'int(struct ceph_crypto_key *, void **, void *)'
25 | int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end);
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/array_size.h:5,
from include/linux/string.h:6,
from include/linux/ceph/ceph_debug.h:7,
from net/ceph/crypto.c:3:
net/ceph/crypto.c: In function 'ceph_crypto_key_decode':
>> net/ceph/crypto.c:93:26: error: passing argument 1 of 'ceph_has_room' from incompatible pointer type [-Werror=incompatible-pointer-types]
93 | ceph_decode_need(p, end, 2*sizeof(u16) + sizeof(key->created), bad);
| ^
| |
| const void **
include/linux/compiler.h:76:45: note: in definition of macro 'likely'
76 | # define likely(x) __builtin_expect(!!(x), 1)
| ^
net/ceph/crypto.c:93:9: note: in expansion of macro 'ceph_decode_need'
93 | ceph_decode_need(p, end, 2*sizeof(u16) + sizeof(key->created), bad);
| ^~~~~~~~~~~~~~~~
In file included from net/ceph/crypto.c:16:
include/linux/ceph/decode.h:52:41: note: expected 'void **' but argument is of type 'const void **'
52 | static inline bool ceph_has_room(void **p, void *end, size_t n)
| ~~~~~~~^
>> net/ceph/crypto.c:93:29: warning: passing argument 2 of 'ceph_has_room' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
93 | ceph_decode_need(p, end, 2*sizeof(u16) + sizeof(key->created), bad);
| ^~~
include/linux/compiler.h:76:45: note: in definition of macro 'likely'
76 | # define likely(x) __builtin_expect(!!(x), 1)
| ^
net/ceph/crypto.c:93:9: note: in expansion of macro 'ceph_decode_need'
93 | ceph_decode_need(p, end, 2*sizeof(u16) + sizeof(key->created), bad);
| ^~~~~~~~~~~~~~~~
include/linux/ceph/decode.h:52:50: note: expected 'void *' but argument is of type 'const void *'
52 | static inline bool ceph_has_room(void **p, void *end, size_t n)
| ~~~~~~^~~
>> net/ceph/crypto.c:94:36: error: passing argument 1 of 'ceph_decode_16' from incompatible pointer type [-Werror=incompatible-pointer-types]
94 | key->type = ceph_decode_16(p);
| ^
| |
| const void **
include/linux/ceph/decode.h:31:41: note: expected 'void **' but argument is of type 'const void **'
31 | static inline u16 ceph_decode_16(void **p)
| ~~~~~~~^
>> net/ceph/crypto.c:95:26: error: passing argument 1 of 'ceph_decode_copy' from incompatible pointer type [-Werror=incompatible-pointer-types]
95 | ceph_decode_copy(p, &key->created, sizeof(key->created));
| ^
| |
| const void **
include/linux/ceph/decode.h:43:44: note: expected 'void **' but argument is of type 'const void **'
43 | static inline void ceph_decode_copy(void **p, void *pv, size_t n)
| ~~~~~~~^
net/ceph/crypto.c:96:35: error: passing argument 1 of 'ceph_decode_16' from incompatible pointer type [-Werror=incompatible-pointer-types]
96 | key->len = ceph_decode_16(p);
| ^
| |
| const void **
include/linux/ceph/decode.h:31:41: note: expected 'void **' but argument is of type 'const void **'
31 | static inline u16 ceph_decode_16(void **p)
| ~~~~~~~^
net/ceph/crypto.c:97:26: error: passing argument 1 of 'ceph_has_room' from incompatible pointer type [-Werror=incompatible-pointer-types]
97 | ceph_decode_need(p, end, key->len, bad);
| ^
| |
| const void **
include/linux/compiler.h:76:45: note: in definition of macro 'likely'
76 | # define likely(x) __builtin_expect(!!(x), 1)
| ^
net/ceph/crypto.c:97:9: note: in expansion of macro 'ceph_decode_need'
97 | ceph_decode_need(p, end, key->len, bad);
| ^~~~~~~~~~~~~~~~
include/linux/ceph/decode.h:52:41: note: expected 'void **' but argument is of type 'const void **'
52 | static inline bool ceph_has_room(void **p, void *end, size_t n)
| ~~~~~~~^
net/ceph/crypto.c:97:29: warning: passing argument 2 of 'ceph_has_room' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
97 | ceph_decode_need(p, end, key->len, bad);
| ^~~
include/linux/compiler.h:76:45: note: in definition of macro 'likely'
76 | # define likely(x) __builtin_expect(!!(x), 1)
| ^
net/ceph/crypto.c:97:9: note: in expansion of macro 'ceph_decode_need'
97 | ceph_decode_need(p, end, key->len, bad);
| ^~~~~~~~~~~~~~~~
include/linux/ceph/decode.h:52:50: note: expected 'void *' but argument is of type 'const void *'
52 | static inline bool ceph_has_room(void **p, void *end, size_t n)
| ~~~~~~^~~
>> net/ceph/crypto.c:98:31: warning: passing argument 2 of 'set_secret' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
98 | ret = set_secret(key, *p);
| ^~
net/ceph/crypto.c:23:58: note: expected 'void *' but argument is of type 'const void *'
23 | static int set_secret(struct ceph_crypto_key *key, void *buf)
| ~~~~~~^~~
>> net/ceph/crypto.c:99:26: warning: passing argument 1 of 'memzero_explicit' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
99 | memzero_explicit(*p, key->len);
| ^~
include/linux/string.h:356:43: note: expected 'void *' but argument is of type 'const void *'
356 | static inline void memzero_explicit(void *s, size_t count)
| ~~~~~~^
net/ceph/crypto.c: In function 'ceph_crypto_key_unarmor':
>> net/ceph/crypto.c:126:43: error: passing argument 2 of 'ceph_crypto_key_decode' from incompatible pointer type [-Werror=incompatible-pointer-types]
126 | ret = ceph_crypto_key_decode(key, &p, p + blen);
| ^~
| |
| void **
net/ceph/crypto.c:89:70: note: expected 'const void **' but argument is of type 'void **'
89 | int ceph_crypto_key_decode(struct ceph_crypto_key *key, const void **p, const void *end)
| ~~~~~~~~~~~~~^
cc1: some warnings being treated as errors
vim +89 net/ceph/crypto.c
13
14 #include <keys/ceph-type.h>
15 #include <keys/user-type.h>
16 #include <linux/ceph/decode.h>
> 17 #include "crypto.h"
18
19 /*
20 * Set ->key and ->tfm. The rest of the key should be filled in before
21 * this function is called.
22 */
23 static int set_secret(struct ceph_crypto_key *key, void *buf)
24 {
25 unsigned int noio_flag;
26 int ret;
27
28 key->key = NULL;
29 key->tfm = NULL;
30
31 switch (key->type) {
32 case CEPH_CRYPTO_NONE:
33 return 0; /* nothing to do */
34 case CEPH_CRYPTO_AES:
35 break;
36 default:
37 return -ENOTSUPP;
38 }
39
40 if (!key->len)
41 return -EINVAL;
42
43 key->key = kmemdup(buf, key->len, GFP_NOIO);
44 if (!key->key) {
45 ret = -ENOMEM;
46 goto fail;
47 }
48
49 /* crypto_alloc_sync_skcipher() allocates with GFP_KERNEL */
50 noio_flag = memalloc_noio_save();
51 key->tfm = crypto_alloc_sync_skcipher("cbc(aes)", 0, 0);
52 memalloc_noio_restore(noio_flag);
53 if (IS_ERR(key->tfm)) {
54 ret = PTR_ERR(key->tfm);
55 key->tfm = NULL;
56 goto fail;
57 }
58
59 ret = crypto_sync_skcipher_setkey(key->tfm, key->key, key->len);
60 if (ret)
61 goto fail;
62
63 return 0;
64
65 fail:
66 ceph_crypto_key_destroy(key);
67 return ret;
68 }
69
70 int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
71 const struct ceph_crypto_key *src)
72 {
73 memcpy(dst, src, sizeof(struct ceph_crypto_key));
74 return set_secret(dst, src->key);
75 }
76
77 int ceph_crypto_key_encode(struct ceph_crypto_key *key, void **p, void *end)
78 {
79 if (*p + sizeof(u16) + sizeof(key->created) +
80 sizeof(u16) + key->len > end)
81 return -ERANGE;
82 ceph_encode_16(p, key->type);
83 ceph_encode_copy(p, &key->created, sizeof(key->created));
84 ceph_encode_16(p, key->len);
85 ceph_encode_copy(p, key->key, key->len);
86 return 0;
87 }
88
> 89 int ceph_crypto_key_decode(struct ceph_crypto_key *key, const void **p, const void *end)
90 {
91 int ret;
92
> 93 ceph_decode_need(p, end, 2*sizeof(u16) + sizeof(key->created), bad);
> 94 key->type = ceph_decode_16(p);
> 95 ceph_decode_copy(p, &key->created, sizeof(key->created));
96 key->len = ceph_decode_16(p);
> 97 ceph_decode_need(p, end, key->len, bad);
> 98 ret = set_secret(key, *p);
> 99 memzero_explicit(*p, key->len);
100 *p += key->len;
101 return ret;
102
103 bad:
104 dout("failed to decode crypto key\n");
105 return -EINVAL;
106 }
107
108 int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *inkey)
109 {
110 int inlen = strlen(inkey);
111 int blen = inlen * 3 / 4;
112 void *buf, *p;
113 int ret;
114
115 dout("crypto_key_unarmor %s\n", inkey);
116 buf = kmalloc(blen, GFP_NOFS);
117 if (!buf)
118 return -ENOMEM;
119 blen = ceph_unarmor(buf, inkey, inkey+inlen);
120 if (blen < 0) {
121 kfree(buf);
122 return blen;
123 }
124
125 p = buf;
> 126 ret = ceph_crypto_key_decode(key, &p, p + blen);
127 kfree(buf);
128 if (ret)
129 return ret;
130 dout("crypto_key_unarmor key %p type %d len %d\n", key,
131 key->type, key->len);
132 return 0;
133 }
134
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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