CC: kbuild-...@lists.01.org
BCC: l...@intel.com
CC: linux-ker...@vger.kernel.org
TO: Prabhakar Kushwaha <pkushw...@marvell.com>
CC: Ariel Elior <ael...@marvell.com>
CC: Shai Malin <sma...@marvell.com>
CC: Omkar Kulkarni <okulka...@marvell.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   09688c0166e76ce2fb85e86b9d99be8b0084cdf9
commit: 6c95dd8f0aa1d983e857a755fca7001677d1dcb5 qed: Update debug related 
changes
date:   5 months ago
:::::: branch date: 35 hours ago
:::::: commit date: 5 months ago
config: riscv-randconfig-m031-20220313 
(https://download.01.org/0day-ci/archive/20220315/202203151436.sd0ycwvt-...@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 11.2.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
Reported-by: Dan Carpenter <dan.carpen...@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

c965db44462919f Tomer Tayar        2016-09-07  7924  
c965db44462919f Tomer Tayar        2016-09-07  7925  #define 
QED_RESULTS_BUF_MIN_SIZE 16
c965db44462919f Tomer Tayar        2016-09-07  7926  /* Generic function for 
decoding debug feature info */
8c93beaf5714b9d Yuval Mintz        2016-10-13  7927  static enum dbg_status 
format_feature(struct qed_hwfn *p_hwfn,
c965db44462919f Tomer Tayar        2016-09-07  7928                             
      enum qed_dbg_features feature_idx)
c965db44462919f Tomer Tayar        2016-09-07  7929  {
c965db44462919f Tomer Tayar        2016-09-07  7930     struct qed_dbg_feature 
*feature =
ca352f00756e7bd Igor Russkikh      2020-05-14  7931         
&p_hwfn->cdev->dbg_features[feature_idx];
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7932     u32 txt_size_bytes, 
null_char_pos, i;
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7933     u32 *dbuf, dwords;
c965db44462919f Tomer Tayar        2016-09-07  7934     enum dbg_status rc;
c965db44462919f Tomer Tayar        2016-09-07  7935     char *text_buf;
c965db44462919f Tomer Tayar        2016-09-07  7936  
c965db44462919f Tomer Tayar        2016-09-07  7937     /* Check if feature 
supports formatting capability */
c965db44462919f Tomer Tayar        2016-09-07  7938     if 
(!qed_features_lookup[feature_idx].results_buf_size)
c965db44462919f Tomer Tayar        2016-09-07  7939             return 
DBG_STATUS_OK;
c965db44462919f Tomer Tayar        2016-09-07  7940  
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7941     dbuf = (u32 
*)feature->dump_buf;
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7942     dwords = 
feature->dumped_dwords;
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7943  
c965db44462919f Tomer Tayar        2016-09-07  7944     /* Obtain size of 
formatted output */
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7945     rc = 
qed_features_lookup[feature_idx].results_buf_size(p_hwfn,
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7946                             
                               dbuf,
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7947                             
                               dwords,
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7948                             
                               &txt_size_bytes);
c965db44462919f Tomer Tayar        2016-09-07  7949     if (rc != DBG_STATUS_OK)
c965db44462919f Tomer Tayar        2016-09-07  7950             return rc;
c965db44462919f Tomer Tayar        2016-09-07  7951  
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7952     /* Make sure that the 
allocated size is a multiple of dword
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7953      * (4 bytes).
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7954      */
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04 @7955     null_char_pos = 
txt_size_bytes - 1;
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7956     txt_size_bytes = 
(txt_size_bytes + 3) & ~0x3;
c965db44462919f Tomer Tayar        2016-09-07  7957  
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7958     if (txt_size_bytes < 
QED_RESULTS_BUF_MIN_SIZE) {
c965db44462919f Tomer Tayar        2016-09-07  7959             
DP_NOTICE(p_hwfn->cdev,
c965db44462919f Tomer Tayar        2016-09-07  7960                       
"formatted size of feature was too small %d. Aborting\n",
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7961                       
txt_size_bytes);
c965db44462919f Tomer Tayar        2016-09-07  7962             return 
DBG_STATUS_INVALID_ARGS;
c965db44462919f Tomer Tayar        2016-09-07  7963     }
c965db44462919f Tomer Tayar        2016-09-07  7964  
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7965     /* allocate temp text 
buf */
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7966     text_buf = 
vzalloc(txt_size_bytes);
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7967     if (!text_buf) {
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7968             
DP_NOTICE(p_hwfn->cdev,
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7969                       
"failed to allocate text buffer. Aborting\n");
c965db44462919f Tomer Tayar        2016-09-07  7970             return 
DBG_STATUS_VIRT_MEM_ALLOC_FAILED;
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7971     }
c965db44462919f Tomer Tayar        2016-09-07  7972  
c965db44462919f Tomer Tayar        2016-09-07  7973     /* Decode feature 
opcodes to string on temp buf */
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7974     rc = 
qed_features_lookup[feature_idx].print_results(p_hwfn,
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7975                             
                            dbuf,
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7976                             
                            dwords,
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7977                             
                            text_buf);
c965db44462919f Tomer Tayar        2016-09-07  7978     if (rc != 
DBG_STATUS_OK) {
c965db44462919f Tomer Tayar        2016-09-07  7979             vfree(text_buf);
c965db44462919f Tomer Tayar        2016-09-07  7980             return rc;
c965db44462919f Tomer Tayar        2016-09-07  7981     }
c965db44462919f Tomer Tayar        2016-09-07  7982  
c965db44462919f Tomer Tayar        2016-09-07  7983     /* Replace the original 
null character with a '\n' character.
c965db44462919f Tomer Tayar        2016-09-07  7984      * The bytes that were 
added as a result of the dword alignment are also
c965db44462919f Tomer Tayar        2016-09-07  7985      * padded with '\n' 
characters.
c965db44462919f Tomer Tayar        2016-09-07  7986      */
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7987     for (i = null_char_pos; 
i < txt_size_bytes; i++)
c965db44462919f Tomer Tayar        2016-09-07  7988             text_buf[i] = 
'\n';
c965db44462919f Tomer Tayar        2016-09-07  7989  
c965db44462919f Tomer Tayar        2016-09-07  7990     /* Dump printable 
feature to log */
ca352f00756e7bd Igor Russkikh      2020-05-14  7991     if 
(p_hwfn->cdev->print_dbg_data)
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7992             
qed_dbg_print_feature(text_buf, txt_size_bytes);
c965db44462919f Tomer Tayar        2016-09-07  7993  
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7994     /* Dump binary data as 
is to the output file */
da3287111ab43b3 Alexander Lobakin  2020-07-06  7995     if 
(p_hwfn->cdev->dbg_bin_dump) {
da3287111ab43b3 Alexander Lobakin  2020-07-06  7996             vfree(text_buf);
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  7997             return rc;
da3287111ab43b3 Alexander Lobakin  2020-07-06  7998     }
da3287111ab43b3 Alexander Lobakin  2020-07-06  7999  
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  8000     /* Free the old 
dump_buf and point the dump_buf to the newly allocated
c965db44462919f Tomer Tayar        2016-09-07  8001      * and formatted text 
buffer.
c965db44462919f Tomer Tayar        2016-09-07  8002      */
c965db44462919f Tomer Tayar        2016-09-07  8003     
vfree(feature->dump_buf);
c965db44462919f Tomer Tayar        2016-09-07  8004     feature->dump_buf = 
text_buf;
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  8005     feature->buf_size = 
txt_size_bytes;
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  8006     feature->dumped_dwords 
= txt_size_bytes / 4;
6c95dd8f0aa1d98 Prabhakar Kushwaha 2021-10-04  8007  
c965db44462919f Tomer Tayar        2016-09-07  8008     return rc;
c965db44462919f Tomer Tayar        2016-09-07  8009  }
c965db44462919f Tomer Tayar        2016-09-07  8010  

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