drivers/net/ethernet/qlogic/qed/qed_debug.c:7955 format_feature() error: uninitialized symbol 'txt_size_bytes'.
7:36 a.m.
BCC: lkp(a)intel.com
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Prabhakar Kushwaha <pkushwaha(a)marvell.com>
CC: Ariel Elior <aelior(a)marvell.com>
CC: Shai Malin <smalin(a)marvell.com>
CC: Omkar Kulkarni <okulkarni(a)marvell.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 38eddeedbbeac33f26845c29e7414b9313ea70db
commit: 6c95dd8f0aa1d983e857a755fca7001677d1dcb5 qed: Update debug related changes
date: 12 months ago
:::::: branch date: 5 hours ago
:::::: commit date: 12 months ago
config: csky-randconfig-m041-20220918
(https://download.01.org/0day-ci/archive/20220919/202209190557.heYEkHPc-lk...)
compiler: csky-linux-gcc (GCC) 12.1.0
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp(a)intel.com>
Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com>
New smatch warnings:
drivers/net/ethernet/qlogic/qed/qed_debug.c:7955 format_feature() error: uninitialized
symbol 'txt_size_bytes'.
Old smatch warnings:
drivers/net/ethernet/qlogic/qed/qed_debug.c:5262 qed_dbg_grc_config() warn: unsigned
'grc_param' is never less than zero.
drivers/net/ethernet/qlogic/qed/qed_debug.c:8043 qed_dbg_dump() error: uninitialized
symbol 'buf_size_dwords'.
drivers/net/ethernet/qlogic/qed/qed_debug.c:8637 qed_dbg_feature_size() error:
uninitialized symbol 'buf_size_dwords'.
vim +/txt_size_bytes +7955 drivers/net/ethernet/qlogic/qed/qed_debug.c
c965db44462919 Tomer Tayar 2016-09-07 7924
c965db44462919 Tomer Tayar 2016-09-07 7925 #define QED_RESULTS_BUF_MIN_SIZE 16
c965db44462919 Tomer Tayar 2016-09-07 7926 /* Generic function for decoding debug
feature info */
8c93beaf5714b9 Yuval Mintz 2016-10-13 7927 static enum dbg_status
format_feature(struct qed_hwfn *p_hwfn,
c965db44462919 Tomer Tayar 2016-09-07 7928 enum qed_dbg_features
feature_idx)
c965db44462919 Tomer Tayar 2016-09-07 7929 {
c965db44462919 Tomer Tayar 2016-09-07 7930 struct qed_dbg_feature *feature =
ca352f00756e7b Igor Russkikh 2020-05-14 7931
&p_hwfn->cdev->dbg_features[feature_idx];
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7932 u32 txt_size_bytes, null_char_pos,
i;
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7933 u32 *dbuf, dwords;
c965db44462919 Tomer Tayar 2016-09-07 7934 enum dbg_status rc;
c965db44462919 Tomer Tayar 2016-09-07 7935 char *text_buf;
c965db44462919 Tomer Tayar 2016-09-07 7936
c965db44462919 Tomer Tayar 2016-09-07 7937 /* Check if feature supports
formatting capability */
c965db44462919 Tomer Tayar 2016-09-07 7938 if
(!qed_features_lookup[feature_idx].results_buf_size)
c965db44462919 Tomer Tayar 2016-09-07 7939 return DBG_STATUS_OK;
c965db44462919 Tomer Tayar 2016-09-07 7940
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7941 dbuf = (u32 *)feature->dump_buf;
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7942 dwords = feature->dumped_dwords;
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7943
c965db44462919 Tomer Tayar 2016-09-07 7944 /* Obtain size of formatted output
*/
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7945 rc =
qed_features_lookup[feature_idx].results_buf_size(p_hwfn,
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7946 dbuf,
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7947 dwords,
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7948 &txt_size_bytes);
c965db44462919 Tomer Tayar 2016-09-07 7949 if (rc != DBG_STATUS_OK)
c965db44462919 Tomer Tayar 2016-09-07 7950 return rc;
c965db44462919 Tomer Tayar 2016-09-07 7951
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7952 /* Make sure that the allocated size
is a multiple of dword
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7953 * (4 bytes).
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7954 */
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 @7955 null_char_pos = txt_size_bytes - 1;
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7956 txt_size_bytes = (txt_size_bytes + 3)
& ~0x3;
c965db44462919 Tomer Tayar 2016-09-07 7957
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7958 if (txt_size_bytes <
QED_RESULTS_BUF_MIN_SIZE) {
c965db44462919 Tomer Tayar 2016-09-07 7959 DP_NOTICE(p_hwfn->cdev,
c965db44462919 Tomer Tayar 2016-09-07 7960 "formatted size of feature
was too small %d. Aborting\n",
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7961 txt_size_bytes);
c965db44462919 Tomer Tayar 2016-09-07 7962 return DBG_STATUS_INVALID_ARGS;
c965db44462919 Tomer Tayar 2016-09-07 7963 }
c965db44462919 Tomer Tayar 2016-09-07 7964
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7965 /* allocate temp text buf */
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7966 text_buf = vzalloc(txt_size_bytes);
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7967 if (!text_buf) {
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7968 DP_NOTICE(p_hwfn->cdev,
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7969 "failed to allocate text
buffer. Aborting\n");
c965db44462919 Tomer Tayar 2016-09-07 7970 return
DBG_STATUS_VIRT_MEM_ALLOC_FAILED;
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7971 }
c965db44462919 Tomer Tayar 2016-09-07 7972
c965db44462919 Tomer Tayar 2016-09-07 7973 /* Decode feature opcodes to string
on temp buf */
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7974 rc =
qed_features_lookup[feature_idx].print_results(p_hwfn,
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7975 dbuf,
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7976 dwords,
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7977 text_buf);
c965db44462919 Tomer Tayar 2016-09-07 7978 if (rc != DBG_STATUS_OK) {
c965db44462919 Tomer Tayar 2016-09-07 7979 vfree(text_buf);
c965db44462919 Tomer Tayar 2016-09-07 7980 return rc;
c965db44462919 Tomer Tayar 2016-09-07 7981 }
c965db44462919 Tomer Tayar 2016-09-07 7982
c965db44462919 Tomer Tayar 2016-09-07 7983 /* Replace the original null
character with a '\n' character.
c965db44462919 Tomer Tayar 2016-09-07 7984 * The bytes that were added as a
result of the dword alignment are also
c965db44462919 Tomer Tayar 2016-09-07 7985 * padded with '\n'
characters.
c965db44462919 Tomer Tayar 2016-09-07 7986 */
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7987 for (i = null_char_pos; i <
txt_size_bytes; i++)
c965db44462919 Tomer Tayar 2016-09-07 7988 text_buf[i] = '\n';
c965db44462919 Tomer Tayar 2016-09-07 7989
c965db44462919 Tomer Tayar 2016-09-07 7990 /* Dump printable feature to log */
ca352f00756e7b Igor Russkikh 2020-05-14 7991 if
(p_hwfn->cdev->print_dbg_data)
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7992 qed_dbg_print_feature(text_buf,
txt_size_bytes);
c965db44462919 Tomer Tayar 2016-09-07 7993
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7994 /* Dump binary data as is to the
output file */
da3287111ab43b Alexander Lobakin 2020-07-06 7995 if (p_hwfn->cdev->dbg_bin_dump)
{
da3287111ab43b Alexander Lobakin 2020-07-06 7996 vfree(text_buf);
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 7997 return rc;
da3287111ab43b Alexander Lobakin 2020-07-06 7998 }
da3287111ab43b Alexander Lobakin 2020-07-06 7999
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 8000 /* Free the old dump_buf and point
the dump_buf to the newly allocated
c965db44462919 Tomer Tayar 2016-09-07 8001 * and formatted text buffer.
c965db44462919 Tomer Tayar 2016-09-07 8002 */
c965db44462919 Tomer Tayar 2016-09-07 8003 vfree(feature->dump_buf);
c965db44462919 Tomer Tayar 2016-09-07 8004 feature->dump_buf = text_buf;
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 8005 feature->buf_size =
txt_size_bytes;
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 8006 feature->dumped_dwords =
txt_size_bytes / 4;
6c95dd8f0aa1d9 Prabhakar Kushwaha 2021-10-04 8007
c965db44462919 Tomer Tayar 2016-09-07 8008 return rc;
c965db44462919 Tomer Tayar 2016-09-07 8009 }
c965db44462919 Tomer Tayar 2016-09-07 8010
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