drivers/scsi/qla2xxx/qla_edif_bsg.h:93:12: warning: field remote_pid within 'struct app_pinfo_req' is less aligned than 'port_id_t' and is usually due to 'struct app_pinfo_req' being packed, which can lead to unaligned accesses

kernel test robot
2022-06-02T03:56:21Z

head: d1dc87763f406d4e67caf16dbe438a5647692395
commit: 7878f22a2e03b69baf792f74488962981a1c9547 scsi: qla2xxx: edif: Add getfcinfo and statistic bsgs
date: 10 months ago
config: arm-randconfig-r022-20220602 (https://download.01.org/0day-ci/archive/20220602/202206021148.wcw2WbrV-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project b364c76683f8ef241025a9556300778c07b590c2)
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
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7878f22a2e03b69baf792f74488962981a1c9547
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 7878f22a2e03b69baf792f74488962981a1c9547
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/scsi/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

In file included from drivers/scsi/qla2xxx/qla_edif.c:6:
In file included from drivers/scsi/qla2xxx/qla_def.h:34:
include/uapi/scsi/scsi_bsg_fc.h:280:4: warning: field rqst_data within 'struct fc_bsg_request' is less aligned than 'union (unnamed union at include/uapi/scsi/scsi_bsg_fc.h:271:2)' and is usually due to 'struct fc_bsg_request' being packed, which can lead to unaligned accesses [-Wunaligned-access]
} rqst_data;
^
In file included from drivers/scsi/qla2xxx/qla_edif.c:6:
In file included from drivers/scsi/qla2xxx/qla_def.h:74:
In file included from drivers/scsi/qla2xxx/qla_bsg.h:298:
>> drivers/scsi/qla2xxx/qla_edif_bsg.h:93:12: warning: field remote_pid within 'struct app_pinfo_req' is less aligned than 'port_id_t' and is usually due to 'struct app_pinfo_req' being packed, which can lead to unaligned accesses [-Wunaligned-access]
port_id_t remote_pid;
^
2 warnings generated.

vim +93 drivers/scsi/qla2xxx/qla_edif_bsg.h

7ebb336e45ef1c Quinn Tran 2021-06-23 89
7ebb336e45ef1c Quinn Tran 2021-06-23 90 struct app_pinfo_req {
7ebb336e45ef1c Quinn Tran 2021-06-23 91 struct app_id app_info;
7ebb336e45ef1c Quinn Tran 2021-06-23 92 uint8_t num_ports;
7ebb336e45ef1c Quinn Tran 2021-06-23 @93 port_id_t remote_pid;
7ebb336e45ef1c Quinn Tran 2021-06-23 94 uint8_t reserved[VND_CMD_APP_RESERVED_SIZE];
7ebb336e45ef1c Quinn Tran 2021-06-23 95 } __packed;
7ebb336e45ef1c Quinn Tran 2021-06-23 96

:::::: The code at line 93 was first introduced by commit
:::::: 7ebb336e45ef1ce23462c3bbd03779929008901f scsi: qla2xxx: edif: Add start + stop bsgs

:::::: TO: Quinn Tran <qutran@marvell.com>
:::::: CC: Martin K. Petersen <martin.petersen@oracle.com>

--
0-DAY CI Kernel Test Service