* Re: [RFC PATCH 14/16] crypto: qat - add support for zstd
[not found] <20251128191531.1703018-15-giovanni.cabiddu@intel.com>
@ 2025-11-29 16:57 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2025-11-29 16:57 UTC (permalink / raw)
To: Giovanni Cabiddu; +Cc: llvm, oe-kbuild-all
Hi Giovanni,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build warnings:
[auto build test WARNING on ebbdf6466b30e3b37f3b360826efd21f0633fb9e]
url: https://github.com/intel-lab-lkp/linux/commits/Giovanni-Cabiddu/crypto-zstd-fix-double-free-in-per-CPU-stream-cleanup/20251128-222112
base: ebbdf6466b30e3b37f3b360826efd21f0633fb9e
patch link: https://lore.kernel.org/r/20251128191531.1703018-15-giovanni.cabiddu%40intel.com
patch subject: [RFC PATCH 14/16] crypto: qat - add support for zstd
config: i386-buildonly-randconfig-003 (https://download.01.org/0day-ci/archive/20251130/202511300007.jf6qGfjm-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251130/202511300007.jf6qGfjm-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202511300007.jf6qGfjm-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/crypto/intel/qat/qat_common/qat_comp_zstd_utils.c:104:17: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Wformat]
103 | pr_debug("[%s]: qat zstd sequence overflow (seqs_idx:%lu, out_seqs_capacity:%lu, lz4s_buff_size:%u)\n",
| ~~~
| %zu
104 | __func__, seqs_idx, out_seqs_capacity, lz4s_buff_size);
| ^~~~~~~~
include/linux/printk.h:636:26: note: expanded from macro 'pr_debug'
636 | dynamic_pr_debug(fmt, ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/dynamic_debug.h:270:22: note: expanded from macro 'dynamic_pr_debug'
270 | pr_fmt(fmt), ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/dynamic_debug.h:250:59: note: expanded from macro '_dynamic_func_call'
250 | _dynamic_func_call_cls(_DPRINTK_CLASS_DFLT, fmt, func, ##__VA_ARGS__)
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:248:65: note: expanded from macro '_dynamic_func_call_cls'
248 | __dynamic_func_call_cls(__UNIQUE_ID(ddebug), cls, fmt, func, ##__VA_ARGS__)
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:224:15: note: expanded from macro '__dynamic_func_call_cls'
224 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
drivers/crypto/intel/qat/qat_common/qat_comp_zstd_utils.c:104:27: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Wformat]
103 | pr_debug("[%s]: qat zstd sequence overflow (seqs_idx:%lu, out_seqs_capacity:%lu, lz4s_buff_size:%u)\n",
| ~~~
| %zu
104 | __func__, seqs_idx, out_seqs_capacity, lz4s_buff_size);
| ^~~~~~~~~~~~~~~~~
include/linux/printk.h:636:26: note: expanded from macro 'pr_debug'
636 | dynamic_pr_debug(fmt, ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/dynamic_debug.h:270:22: note: expanded from macro 'dynamic_pr_debug'
270 | pr_fmt(fmt), ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/dynamic_debug.h:250:59: note: expanded from macro '_dynamic_func_call'
250 | _dynamic_func_call_cls(_DPRINTK_CLASS_DFLT, fmt, func, ##__VA_ARGS__)
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:248:65: note: expanded from macro '_dynamic_func_call_cls'
248 | __dynamic_func_call_cls(__UNIQUE_ID(ddebug), cls, fmt, func, ##__VA_ARGS__)
| ^~~~~~~~~~~
include/linux/dynamic_debug.h:224:15: note: expanded from macro '__dynamic_func_call_cls'
224 | func(&id, ##__VA_ARGS__); \
| ^~~~~~~~~~~
2 warnings generated.
vim +104 drivers/crypto/intel/qat/qat_common/qat_comp_zstd_utils.c
14
15 /*
16 * Implement the same algorithm as the QAT ZSTD sequence producer plugin,
17 * to decode LZ4s formatted data into ZSTD_Sequence format.
18 */
19 size_t qat_alg_dec_lz4s(ZSTD_Sequence *out_seqs, size_t out_seqs_capacity,
20 unsigned char *lz4s_buff, unsigned int lz4s_buff_size,
21 unsigned char *literals, unsigned int *lit_len)
22 {
23 unsigned char *end_ip = lz4s_buff + lz4s_buff_size;
24 unsigned int hist_literal_len = 0;
25 unsigned char *ip = lz4s_buff;
26 size_t seqs_idx = 0;
27
28 *lit_len = 0;
29
30 if (!lz4s_buff_size)
31 return 0;
32
33 while (ip < end_ip) {
34 size_t length = 0;
35 size_t offset = 0;
36 size_t literal_len = 0, match_len = 0;
37
38 /* get literal length */
39 unsigned const token = *ip++;
40
41 length = token >> ML_BITS;
42 if (length == RUN_MASK) {
43 unsigned int s;
44
45 do {
46 s = *ip++;
47 length += s;
48 } while (s == 255);
49 }
50
51 literal_len = length;
52
53 {
54 u8 *start = ip;
55 u8 *dest = literals;
56 u8 *dest_end = literals + length;
57
58 do {
59 __builtin_memcpy(dest, start, QAT_ZSTD_LIT_COPY_LEN);
60 dest += QAT_ZSTD_LIT_COPY_LEN;
61 start += QAT_ZSTD_LIT_COPY_LEN;
62 } while (dest < dest_end);
63 }
64
65 literals += length;
66 *lit_len += length;
67
68 ip += length;
69 if (ip == end_ip) { /* Meet the end of the LZ4 sequence */
70 literal_len += hist_literal_len;
71 out_seqs[seqs_idx].litLength = literal_len;
72 out_seqs[seqs_idx].offset = offset;
73 out_seqs[seqs_idx].matchLength = match_len;
74 break;
75 }
76
77 /* get matchPos */
78 offset = le16_to_cpu(*(__le16 *)ip);
79 ip += 2;
80
81 /* get match length */
82 length = token & ML_MASK;
83 if (length == ML_MASK) {
84 unsigned int s;
85
86 do {
87 s = *ip++;
88 length += s;
89 } while (s == 255);
90 }
91 if (length != 0) {
92 length += LZ4MINMATCH;
93 match_len = (unsigned short)length;
94 literal_len += hist_literal_len;
95
96 /* update ZSTD_Sequence */
97 out_seqs[seqs_idx].offset = offset;
98 out_seqs[seqs_idx].litLength = literal_len;
99 out_seqs[seqs_idx].matchLength = match_len;
100 hist_literal_len = 0;
101 ++seqs_idx;
102 if (seqs_idx >= (out_seqs_capacity - 1)) {
103 pr_debug("[%s]: qat zstd sequence overflow (seqs_idx:%lu, out_seqs_capacity:%lu, lz4s_buff_size:%u)\n",
> 104 __func__, seqs_idx, out_seqs_capacity, lz4s_buff_size);
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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[not found] <20251128191531.1703018-15-giovanni.cabiddu@intel.com>
2025-11-29 16:57 ` [RFC PATCH 14/16] crypto: qat - add support for zstd kernel test robot
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