CC: [email protected]
CC: [email protected]
BCC: [email protected]
CC: [email protected]
TO: Chris Down <[email protected]>
CC: Petr Mladek <[email protected]>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   eaea45fc0e7b6ae439526b4a41d91230c8517336
commit: 337015573718b161891a3473d25f59273f2e626b printk: Userspace format 
indexing support
date:   10 months ago
:::::: branch date: 24 hours ago
:::::: commit date: 10 months ago
config: i386-randconfig-c001-20220516 
(https://download.01.org/0day-ci/archive/20220523/[email protected]/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 
853fa8ee225edf2d0de94b0dcbd31bea916e825e)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=337015573718b161891a3473d25f59273f2e626b
        git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 337015573718b161891a3473d25f59273f2e626b
        # save the config file
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 
clang-analyzer 

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <[email protected]>


clang-analyzer warnings: (new ones prefixed by >>)
   drivers/scsi/libsas/sas_expander.c:1794:8: note: Calling 'smp_execute_task'
           res = smp_execute_task(dev, rg_req, RG_REQ_SIZE, rg_resp,
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/scsi/libsas/sas_expander.c:148:2: note: Returning without writing to 
'resp->result'
           return smp_execute_task_sg(dev, &req_sg, &resp_sg);
           ^
   drivers/scsi/libsas/sas_expander.c:148:2: note: Returning value, which 
participates in a condition later
           return smp_execute_task_sg(dev, &req_sg, &resp_sg);
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/scsi/libsas/sas_expander.c:1794:8: note: Returning from 
'smp_execute_task'
           res = smp_execute_task(dev, rg_req, RG_REQ_SIZE, rg_resp,
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/scsi/libsas/sas_expander.c:1796:6: note: Assuming 'res' is 0
           if (res)
               ^~~
   drivers/scsi/libsas/sas_expander.c:1796:2: note: Taking false branch
           if (res)
           ^
   drivers/scsi/libsas/sas_expander.c:1798:22: note: The left operand of '!=' 
is a garbage value
           if (rg_resp->result != SMP_RESP_FUNC_ACC) {
               ~~~~~~~~~~~~~~~ ^
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   2 warnings generated.
   Suppressed 2 warnings (2 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   fs/autofs/root.c:562:2: warning: Call to function 'strcpy' is insecure as it 
does not provide bounding of the memory buffer. Replace unbounded copy 
functions with analogous functions that support length arguments such as 
'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy]
           strcpy(cp, symname);
           ^~~~~~
   fs/autofs/root.c:562:2: note: Call to function 'strcpy' is insecure as it 
does not provide bounding of the memory buffer. Replace unbounded copy 
functions with analogous functions that support length arguments such as 
'strlcpy'. CWE-119
           strcpy(cp, symname);
           ^~~~~~
   Suppressed 2 warnings (2 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   2 warnings generated.
   Suppressed 2 warnings (2 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   2 warnings generated.
   Suppressed 2 warnings (2 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   4 warnings generated.
   Suppressed 4 warnings (4 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   4 warnings generated.
   Suppressed 4 warnings (4 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   4 warnings generated.
   Suppressed 4 warnings (4 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   2 warnings generated.
   Suppressed 2 warnings (2 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   4 warnings generated.
   Suppressed 4 warnings (4 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   4 warnings generated.
   Suppressed 4 warnings (4 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   6 warnings generated.
   drivers/scsi/3w-9xxx.c:718:3: warning: Value stored to 'timeout' is never 
read [clang-analyzer-deadcode.DeadStores]
                   timeout = wait_event_timeout(tw_dev->ioctl_wqueue, 
tw_dev->chrdev_request_id == TW_IOCTL_CHRDEV_FREE, timeout);
                   ^
   drivers/scsi/3w-9xxx.c:718:3: note: Value stored to 'timeout' is never read
   drivers/scsi/3w-9xxx.c:1825:31: warning: Access to field 'cmnd' results in a 
dereference of a null pointer (loaded from variable 'srb') 
[clang-analyzer-core.NullDereference]
                   memcpy(command_packet->cdb, srb->cmnd, TW_MAX_CDB_LEN);
                                               ^~~
   drivers/scsi/3w-9xxx.c:1806:2: note: 'srb' initialized to a null pointer 
value
           struct scsi_cmnd *srb = NULL;
           ^~~~~~~~~~~~~~~~~~~~~
   drivers/scsi/3w-9xxx.c:1810:6: note: Assuming the condition is false
           if (tw_dev->srb[request_id])
               ^~~~~~~~~~~~~~~~~~~~~~~
   drivers/scsi/3w-9xxx.c:1810:2: note: Taking false branch
           if (tw_dev->srb[request_id])
           ^
   drivers/scsi/3w-9xxx.c:1824:6: note: Assuming 'cdb' is null
           if (!cdb)
               ^~~~
   drivers/scsi/3w-9xxx.c:1824:2: note: Taking true branch
           if (!cdb)
           ^
   drivers/scsi/3w-9xxx.c:1825:31: note: Access to field 'cmnd' results in a 
dereference of a null pointer (loaded from variable 'srb')
                   memcpy(command_packet->cdb, srb->cmnd, TW_MAX_CDB_LEN);
                                               ^~~
>> include/scsi/scsi_cmnd.h:183:9: warning: Dereference of null pointer 
>> [clang-analyzer-core.NullDereference]
           return cmd->sdb.table.nents;
                  ^
   drivers/scsi/3w-9xxx.c:1806:2: note: 'srb' initialized to a null pointer 
value
           struct scsi_cmnd *srb = NULL;
           ^~~~~~~~~~~~~~~~~~~~~
   drivers/scsi/3w-9xxx.c:1810:6: note: Assuming the condition is false
           if (tw_dev->srb[request_id])
               ^~~~~~~~~~~~~~~~~~~~~~~
   drivers/scsi/3w-9xxx.c:1810:2: note: Taking false branch
           if (tw_dev->srb[request_id])
           ^
   drivers/scsi/3w-9xxx.c:1824:6: note: Assuming 'cdb' is non-null
           if (!cdb)
               ^~~~
   drivers/scsi/3w-9xxx.c:1824:2: note: Taking false branch
           if (!cdb)
           ^
   drivers/scsi/3w-9xxx.c:1829:6: note: 'srb' is null
           if (srb) {
               ^~~
   drivers/scsi/3w-9xxx.c:1829:2: note: Taking false branch
           if (srb) {
           ^
   drivers/scsi/3w-9xxx.c:1841:6: note: Assuming 'sglistarg' is null
           if (!sglistarg) {
               ^~~~~~~~~~
   drivers/scsi/3w-9xxx.c:1841:2: note: Taking true branch
           if (!sglistarg) {
           ^
   drivers/scsi/3w-9xxx.c:1844:21: note: Passing null pointer value via 1st 
parameter 'cmd'
                   if (scsi_sg_count(srb)) {
                                     ^~~
   drivers/scsi/3w-9xxx.c:1844:7: note: Calling 'scsi_sg_count'
                   if (scsi_sg_count(srb)) {
                       ^~~~~~~~~~~~~~~~~~
   include/scsi/scsi_cmnd.h:183:9: note: Dereference of null pointer
           return cmd->sdb.table.nents;
                  ^~~~~~~~~~~~~~~~~~~~
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   8 warnings generated.
   drivers/scsi/mvsas/mv_init.c:464:13: warning: Access to field 'dev' results 
in a dereference of a null pointer (loaded from variable 'mvi') 
[clang-analyzer-core.NullDereference]
           sha->dev = mvi->dev;
                      ^
   drivers/scsi/mvsas/mv_init.c:505:6: note: Assuming 'rc' is 0
           if (rc)
               ^~
   drivers/scsi/mvsas/mv_init.c:505:2: note: Taking false branch
           if (rc)
           ^
   drivers/scsi/mvsas/mv_init.c:511:6: note: Assuming 'rc' is 0
           if (rc)
               ^~
   drivers/scsi/mvsas/mv_init.c:511:2: note: Taking false branch
           if (rc)
           ^
   drivers/scsi/mvsas/mv_init.c:515:6: note: 'rc' is 0
           if (rc)
               ^~
   drivers/scsi/mvsas/mv_init.c:515:2: note: Taking false branch
           if (rc)
           ^
   drivers/scsi/mvsas/mv_init.c:519:6: note: Assuming 'shost' is non-null
           if (!shost) {
               ^~~~~~
   drivers/scsi/mvsas/mv_init.c:519:2: note: Taking false branch
           if (!shost) {
           ^
   drivers/scsi/mvsas/mv_init.c:527:6: note: Assuming the condition is false
           if (!SHOST_TO_SAS_HA(shost)) {
               ^~~~~~~~~~~~~~~~~~~~~~~
   drivers/scsi/mvsas/mv_init.c:527:2: note: Taking false branch
           if (!SHOST_TO_SAS_HA(shost)) {
           ^
   drivers/scsi/mvsas/mv_init.c:534:6: note: 'rc' is 0
           if (rc) {
               ^~
   drivers/scsi/mvsas/mv_init.c:534:2: note: Taking false branch
           if (rc) {
           ^
   drivers/scsi/mvsas/mv_init.c:544:8: note: 'mvi' is non-null
                   if (!mvi) {
                        ^~~
   drivers/scsi/mvsas/mv_init.c:544:3: note: Taking false branch
                   if (!mvi) {
                   ^
   drivers/scsi/mvsas/mv_init.c:556:7: note: Assuming 'rc' is 0
                   if (rc) {
                       ^~
   drivers/scsi/mvsas/mv_init.c:556:3: note: Taking false branch
                   if (rc) {
                   ^
   drivers/scsi/mvsas/mv_init.c:561:11: note: Assuming 'nhost' is >= field 
'n_host'
           } while (nhost < chip->n_host);
                    ^~~~~~~~~~~~~~~~~~~~
   drivers/scsi/mvsas/mv_init.c:542:2: note: Loop condition is false.  Exiting 
loop
           do {
--
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   4 warnings generated.
   Suppressed 4 warnings (4 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   6 warnings generated.
   drivers/net/phy/mscc/mscc_ptp.c:1449:2: warning: Value stored to 'val' is 
never read [clang-analyzer-deadcode.DeadStores]
           val = vsc85xx_ts_read_csr(phydev, PROCESSOR, 
MSCC_PHY_PTP_VERSION_CODE);
           ^     
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/phy/mscc/mscc_ptp.c:1449:2: note: Value stored to 'val' is never 
read
           val = vsc85xx_ts_read_csr(phydev, PROCESSOR, 
MSCC_PHY_PTP_VERSION_CODE);
           ^     
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   6 warnings generated.
   drivers/net/arcnet/rfc1201.c:348:4: warning: Value stored to 'soft' is never 
read [clang-analyzer-deadcode.DeadStores]
                           soft = &pkt->soft.rfc1201;
                           ^      ~~~~~~~~~~~~~~~~~~
   drivers/net/arcnet/rfc1201.c:348:4: note: Value stored to 'soft' is never 
read
                           soft = &pkt->soft.rfc1201;
                           ^      ~~~~~~~~~~~~~~~~~~
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   4 warnings generated.
   Suppressed 4 warnings (4 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   3 warnings generated.
   Suppressed 3 warnings (3 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   4 warnings generated.
   Suppressed 4 warnings (4 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   4 warnings generated.
   Suppressed 4 warnings (4 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   8 warnings generated.
   Suppressed 8 warnings (8 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   5 warnings generated.
   Suppressed 5 warnings (5 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use 
-system-headers to display errors from system headers as well.
   11 warnings generated.
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:3218:2: warning: Value stored 
to 'ret' is never read [clang-analyzer-deadcode.DeadStores]
           ret = ipw_fw_dma_enable(priv);
           ^     ~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:3218:2: note: Value stored to 
'ret' is never read
           ret = ipw_fw_dma_enable(priv);
           ^     ~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/net/wireless/intel/ipw2x00/ipw2200.c:8171:7: warning: Dereference of 
>> null pointer (loaded from variable 'last_seq') 
>> [clang-analyzer-core.NullDereference]
           if ((*last_seq == seq) &&
                ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8254:6: note: Assuming the 
condition is false
           r = ipw_read32(priv, IPW_RX_READ_INDEX);
               ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:401:2: note: expanded from 
macro 'ipw_read32'
           IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", __FILE__, __LINE__, \
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1474:31: note: expanded from 
macro 'IPW_DEBUG_IO'
   #define IPW_DEBUG_IO(f, a...) IPW_LL_DEBUG(IPW_DL_IO, f, ## a)
                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1389:10: note: expanded from 
macro 'IPW_LL_DEBUG'
   do { if (ipw_debug_level & (level)) \
            ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8254:6: note: Taking false 
branch
           r = ipw_read32(priv, IPW_RX_READ_INDEX);
               ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:401:2: note: expanded from 
macro 'ipw_read32'
           IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", __FILE__, __LINE__, \
           ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1474:31: note: expanded from 
macro 'IPW_DEBUG_IO'
   #define IPW_DEBUG_IO(f, a...) IPW_LL_DEBUG(IPW_DL_IO, f, ## a)
                                 ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1389:6: note: expanded from 
macro 'IPW_LL_DEBUG'
   do { if (ipw_debug_level & (level)) \
        ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8254:6: note: Loop condition is 
false.  Exiting loop
           r = ipw_read32(priv, IPW_RX_READ_INDEX);
               ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:401:2: note: expanded from 
macro 'ipw_read32'
           IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", __FILE__, __LINE__, \
           ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1474:31: note: expanded from 
macro 'IPW_DEBUG_IO'
   #define IPW_DEBUG_IO(f, a...) IPW_LL_DEBUG(IPW_DL_IO, f, ## a)
                                 ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1388:43: note: expanded from 
macro 'IPW_LL_DEBUG'
   #define IPW_LL_DEBUG(level, fmt, args...) \
                                             ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8255:2: note: Taking false 
branch
           ipw_read32(priv, IPW_RX_WRITE_INDEX);
           ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:401:2: note: expanded from 
macro 'ipw_read32'
           IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", __FILE__, __LINE__, \
           ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1474:31: note: expanded from 
macro 'IPW_DEBUG_IO'
   #define IPW_DEBUG_IO(f, a...) IPW_LL_DEBUG(IPW_DL_IO, f, ## a)
                                 ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1389:6: note: expanded from 
macro 'IPW_LL_DEBUG'
   do { if (ipw_debug_level & (level)) \
        ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8255:2: note: Loop condition is 
false.  Exiting loop
           ipw_read32(priv, IPW_RX_WRITE_INDEX);
           ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:401:2: note: expanded from 
macro 'ipw_read32'
           IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", __FILE__, __LINE__, \
           ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1474:31: note: expanded from 
macro 'IPW_DEBUG_IO'
   #define IPW_DEBUG_IO(f, a...) IPW_LL_DEBUG(IPW_DL_IO, f, ## a)
                                 ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1388:43: note: expanded from 
macro 'IPW_LL_DEBUG'
   #define IPW_LL_DEBUG(level, fmt, args...) \
                                             ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8258:6: note: Assuming the 
condition is false
           if (ipw_rx_queue_space (priv->rxq) > (RX_QUEUE_SIZE / 2))
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8258:2: note: Taking false 
branch
           if (ipw_rx_queue_space (priv->rxq) > (RX_QUEUE_SIZE / 2))
           ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8261:9: note: Assuming 'i' is 
not equal to 'r'
           while (i != r) {
                  ^~~~~~
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8261:2: note: Loop condition is 
true.  Entering loop body
           while (i != r) {
           ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8263:16: note: Assuming 'rxb' 
is not equal to null
                   if (unlikely(rxb == NULL)) {
                                ^
   include/linux/compiler.h:78:42: note: expanded from macro 'unlikely'
   # define unlikely(x)    __builtin_expect(!!(x), 0)
                                               ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8263:3: note: Taking false 
branch
                   if (unlikely(rxb == NULL)) {
                   ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8273:3: note: Assuming the 
condition is false
                   IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n",
                   ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1463:35: note: expanded from 
macro 'IPW_DEBUG_RX'
   #define IPW_DEBUG_RX(f, a...)     IPW_LL_DEBUG(IPW_DL_RX, f, ## a)
                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1389:10: note: expanded from 
macro 'IPW_LL_DEBUG'
   do { if (ipw_debug_level & (level)) \
            ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/wireless/intel/ipw2x00/ipw2200.c:8273:3: note: Taking false 
branch
                   IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n",
                   ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1463:35: note: expanded from 
macro 'IPW_DEBUG_RX'
   #define IPW_DEBUG_RX(f, a...)     IPW_LL_DEBUG(IPW_DL_RX, f, ## a)
                                     ^
   drivers/net/wireless/intel/ipw2x00/ipw2200.h:1389:6: note: expanded from 
macro 'IPW_LL_DEBUG'
   do { if (ipw_debug_level & (level)) \

vim +183 include/scsi/scsi_cmnd.h

824d7b570b4dec FUJITA Tomonori 2007-05-26  180  
30b0c37b27485a Boaz Harrosh    2007-12-13  181  static inline unsigned 
scsi_sg_count(struct scsi_cmnd *cmd)
30b0c37b27485a Boaz Harrosh    2007-12-13  182  {
30b0c37b27485a Boaz Harrosh    2007-12-13 @183          return 
cmd->sdb.table.nents;
30b0c37b27485a Boaz Harrosh    2007-12-13  184  }
30b0c37b27485a Boaz Harrosh    2007-12-13  185  

:::::: The code at line 183 was first introduced by commit
:::::: 30b0c37b27485a9cb897bfe3824f6f517b8c80d6 [SCSI] implement 
scsi_data_buffer

:::::: TO: Boaz Harrosh <[email protected]>
:::::: CC: James Bottomley <[email protected]>

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