* drivers/iio/imu/adis16480.c:169:8: warning: Excessive padding in 'struct adis16480' (40 padding bytes, where 8 is optimal). Optimal fields order: adis, data, chip_info, ext_clk, clk_mode, clk_freq, consider reordering the fields or adding explicit padding...
@ 2022-07-24 14:17 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2022-07-24 14:17 UTC (permalink / raw)
To: Nuno Sa
Cc: llvm, kbuild-all, linux-kernel, Jonathan Cameron, Lars-Peter Clausen
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 515f71412bb73ebd7f41f90e1684fc80b8730789
commit: 941f130881fa9073a32944e69c26cdc15a554d96 iio: adis16480: support burst read function
date: 1 year, 2 months ago
config: arm-randconfig-c002-20220717 (https://download.01.org/0day-ci/archive/20220724/202207242232.7eNzaZhG-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 45067f8fbf61284839c739807c2da2e2505661eb)
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=941f130881fa9073a32944e69c26cdc15a554d96
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 941f130881fa9073a32944e69c26cdc15a554d96
# save the config file
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm clang-analyzer
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
clang-analyzer warnings: (new ones prefixed by >>)
#define to_si4713_device(sd) container_of(sd, struct si4713_device, sd)
^
include/linux/kernel.h:704:2: note: expanded from macro 'container_of'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
^
include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
include/linux/compiler_types.h:328:2: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
include/linux/compiler_types.h:316:2: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^
include/linux/compiler_types.h:306:2: note: expanded from macro '__compiletime_assert'
do { \
^
drivers/media/radio/si4713/si4713.c:1351:6: note: Assuming field 'tuner' is 0
if (f->tuner)
^~~~~~~~
drivers/media/radio/si4713/si4713.c:1351:2: note: Taking false branch
if (f->tuner)
^
drivers/media/radio/si4713/si4713.c:1354:6: note: Assuming field 'power_state' is not equal to 0
if (sdev->power_state) {
^~~~~~~~~~~~~~~~~
drivers/media/radio/si4713/si4713.c:1354:2: note: Taking true branch
if (sdev->power_state) {
^
drivers/media/radio/si4713/si4713.c:1355:3: note: 'freq' declared without an initial value
u16 freq;
^~~~~~~~
drivers/media/radio/si4713/si4713.c:1358:10: note: Calling 'si4713_tx_tune_status'
rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/media/radio/si4713/si4713.c:698:6: note: Assuming 'err' is not equal to 0
if (!err) {
^~~~
drivers/media/radio/si4713/si4713.c:698:2: note: Taking false branch
if (!err) {
^
drivers/media/radio/si4713/si4713.c:711:2: note: Returning without writing to '*frequency'
return err;
^
drivers/media/radio/si4713/si4713.c:1358:10: note: Returning from 'si4713_tx_tune_status'
rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/media/radio/si4713/si4713.c:1359:7: note: Assuming 'rval' is >= 0
if (rval < 0)
^~~~~~~~
drivers/media/radio/si4713/si4713.c:1359:3: note: Taking false branch
if (rval < 0)
^
drivers/media/radio/si4713/si4713.c:1362:19: note: Assigned value is garbage or undefined
sdev->frequency = freq;
^ ~~~~
Suppressed 2 warnings (1 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
drivers/iio/imu/adis16400.c:179:8: warning: Excessive padding in 'struct adis16400_state' (48 padding bytes, where 16 is optimal). Optimal fields order: adis, variant, filt_int, avail_scan_mask, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding]
struct adis16400_state {
~~~~~~~^~~~~~~~~~~~~~~~~
drivers/iio/imu/adis16400.c:179:8: note: Excessive padding in 'struct adis16400_state' (48 padding bytes, where 16 is optimal). Optimal fields order: adis, variant, filt_int, avail_scan_mask, consider reordering the fields or adding explicit padding members
struct adis16400_state {
~~~~~~~^~~~~~~~~~~~~~~~~
1 warning generated.
drivers/iio/imu/adis16475.c:100:8: warning: Excessive padding in 'struct adis16475' (41 padding bytes, where 9 is optimal). Optimal fields order: adis, data, info, clk_freq, lsb_flag, sync_mode, burst32, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding]
struct adis16475 {
~~~~~~~^~~~~~~~~~~
drivers/iio/imu/adis16475.c:100:8: note: Excessive padding in 'struct adis16475' (41 padding bytes, where 9 is optimal). Optimal fields order: adis, data, info, clk_freq, lsb_flag, sync_mode, burst32, consider reordering the fields or adding explicit padding members
struct adis16475 {
~~~~~~~^~~~~~~~~~~
1 warning generated.
>> drivers/iio/imu/adis16480.c:169:8: warning: Excessive padding in 'struct adis16480' (40 padding bytes, where 8 is optimal). Optimal fields order: adis, data, chip_info, ext_clk, clk_mode, clk_freq, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding]
struct adis16480 {
~~~~~~~^~~~~~~~~~~
drivers/iio/imu/adis16480.c:169:8: note: Excessive padding in 'struct adis16480' (40 padding bytes, where 8 is optimal). Optimal fields order: adis, data, chip_info, ext_clk, clk_mode, clk_freq, consider reordering the fields or adding explicit padding members
struct adis16480 {
~~~~~~~^~~~~~~~~~~
1 warning generated.
drivers/hid/hid-kye.c:684:6: warning: Access to field 'maxfield' results in a dereference of an undefined pointer value (loaded from variable 'report') [clang-analyzer-core.NullDereference]
if (report->maxfield < 1 || report->field[0]->report_count < 7) {
^
drivers/hid/hid-kye.c:708:6: note: Assuming 'ret' is 0
if (ret) {
^~~
drivers/hid/hid-kye.c:708:2: note: Taking false branch
if (ret) {
^
drivers/hid/hid-kye.c:714:6: note: Assuming 'ret' is 0
if (ret) {
^~~
drivers/hid/hid-kye.c:714:2: note: Taking false branch
if (ret) {
^
drivers/hid/hid-kye.c:719:2: note: Control jumps to 'case 20501:' at line 725
switch (id->product) {
^
drivers/hid/hid-kye.c:726:9: note: Calling 'kye_tablet_enable'
ret = kye_tablet_enable(hdev);
^~~~~~~~~~~~~~~~~~~~~~~
drivers/hid/hid-kye.c:669:2: note: 'report' declared without an initial value
struct hid_report *report;
^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/hid/hid-kye.c:673:2: note: Loop condition is false. Execution continues on line 679
list_for_each(head, list) {
^
include/linux/list.h:571:2: note: expanded from macro 'list_for_each'
for (pos = (head)->next; pos != (head); pos = pos->next)
^
drivers/hid/hid-kye.c:679:6: note: Assuming 'head' is not equal to 'list'
if (head == list) {
^~~~~~~~~~~~
drivers/hid/hid-kye.c:679:2: note: Taking false branch
if (head == list) {
^
drivers/hid/hid-kye.c:684:6: note: Access to field 'maxfield' results in a dereference of an undefined pointer value (loaded from variable 'report')
if (report->maxfield < 1 || report->field[0]->report_count < 7) {
^~~~~~
1 warning generated.
Suppressed 1 warnings (1 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.
drivers/iio/proximity/sx9310.c:630:17: warning: The left operand of '>>' is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult]
*val = pthresh >> (5 - regval);
^
drivers/iio/proximity/sx9310.c:679:6: note: Assuming field 'type' is equal to IIO_PROXIMITY
if (chan->type != IIO_PROXIMITY)
^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iio/proximity/sx9310.c:679:2: note: Taking false branch
if (chan->type != IIO_PROXIMITY)
^
drivers/iio/proximity/sx9310.c:682:2: note: Control jumps to 'case IIO_EV_INFO_HYSTERESIS:' at line 694
switch (info) {
^
drivers/iio/proximity/sx9310.c:695:10: note: Calling 'sx9310_read_hysteresis'
return sx9310_read_hysteresis(data, chan, val);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iio/proximity/sx9310.c:614:23: note: 'pthresh' declared without an initial value
unsigned int regval, pthresh;
^~~~~~~
drivers/iio/proximity/sx9310.c:617:8: note: Calling 'sx9310_read_thresh'
ret = sx9310_read_thresh(data, chan, &pthresh);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iio/proximity/sx9310.c:596:6: note: 'ret' is >= 0
if (ret < 0)
^~~
drivers/iio/proximity/sx9310.c:596:2: note: Taking false branch
if (ret < 0)
^
drivers/iio/proximity/sx9310.c:600:6: note: Assuming 'ret' is not equal to 0
if (ret)
^~~
drivers/iio/proximity/sx9310.c:600:2: note: Taking true branch
if (ret)
^
drivers/iio/proximity/sx9310.c:617:8: note: Returning from 'sx9310_read_thresh'
ret = sx9310_read_thresh(data, chan, &pthresh);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iio/proximity/sx9310.c:618:6: note: Assuming 'ret' is >= 0
if (ret < 0)
^~~~~~~
drivers/iio/proximity/sx9310.c:618:2: note: Taking false branch
if (ret < 0)
^
drivers/iio/proximity/sx9310.c:622:6: note: Assuming 'ret' is 0
if (ret)
^~~
drivers/iio/proximity/sx9310.c:622:2: note: Taking false branch
if (ret)
^
drivers/iio/proximity/sx9310.c:625:11: note: Taking false branch
regval = FIELD_GET(SX9310_REG_PROX_CTRL10_HYST_MASK, regval);
^
--
net/caif/cfutill.c:84:2: note: Taking false branch
caif_assert(layr != NULL);
^
include/net/caif/caif_layer.h:29:2: note: expanded from macro 'caif_assert'
if (!(assert)) { \
^
net/caif/cfutill.c:84:2: note: Loop condition is false. Exiting loop
caif_assert(layr != NULL);
^
include/net/caif/caif_layer.h:27:33: note: expanded from macro 'caif_assert'
#define caif_assert(assert) \
^
net/caif/cfutill.c:85:14: note: Assuming field 'dn' is equal to null
caif_assert(layr->dn != NULL);
^
include/net/caif/caif_layer.h:29:8: note: expanded from macro 'caif_assert'
if (!(assert)) { \
^~~~~~
net/caif/cfutill.c:85:20: note: Field 'dn' is equal to null
caif_assert(layr->dn != NULL);
^
net/caif/cfutill.c:85:2: note: Taking true branch
caif_assert(layr->dn != NULL);
^
include/net/caif/caif_layer.h:29:2: note: expanded from macro 'caif_assert'
if (!(assert)) { \
^
net/caif/cfutill.c:85:2: note: Taking true branch
caif_assert(layr->dn != NULL);
^
include/net/caif/caif_layer.h:31:3: note: expanded from macro 'caif_assert'
WARN_ON(!(assert)); \
^
include/asm-generic/bug.h:120:2: note: expanded from macro 'WARN_ON'
if (unlikely(__ret_warn_on)) \
^
net/caif/cfutill.c:85:2: note: Loop condition is false. Exiting loop
caif_assert(layr->dn != NULL);
^
include/net/caif/caif_layer.h:31:3: note: expanded from macro 'caif_assert'
WARN_ON(!(assert)); \
^
include/asm-generic/bug.h:121:3: note: expanded from macro 'WARN_ON'
__WARN(); \
^
include/asm-generic/bug.h:86:19: note: expanded from macro '__WARN'
#define __WARN() __WARN_printf(TAINT_WARN, NULL)
^
include/asm-generic/bug.h:88:3: note: expanded from macro '__WARN_printf'
instrumentation_begin(); \
^
include/linux/instrumentation.h:53:34: note: expanded from macro 'instrumentation_begin'
# define instrumentation_begin() do { } while(0)
^
net/caif/cfutill.c:85:2: note: Loop condition is false. Exiting loop
caif_assert(layr->dn != NULL);
^
include/net/caif/caif_layer.h:31:3: note: expanded from macro 'caif_assert'
WARN_ON(!(assert)); \
^
include/asm-generic/bug.h:121:3: note: expanded from macro 'WARN_ON'
__WARN(); \
^
include/asm-generic/bug.h:86:19: note: expanded from macro '__WARN'
#define __WARN() __WARN_printf(TAINT_WARN, NULL)
^
include/asm-generic/bug.h:90:3: note: expanded from macro '__WARN_printf'
instrumentation_end(); \
^
include/linux/instrumentation.h:54:33: note: expanded from macro 'instrumentation_end'
# define instrumentation_end() do { } while(0)
^
net/caif/cfutill.c:85:2: note: Loop condition is false. Exiting loop
caif_assert(layr->dn != NULL);
^
include/net/caif/caif_layer.h:31:3: note: expanded from macro 'caif_assert'
WARN_ON(!(assert)); \
^
include/asm-generic/bug.h:121:3: note: expanded from macro 'WARN_ON'
__WARN(); \
^
include/asm-generic/bug.h:86:19: note: expanded from macro '__WARN'
#define __WARN() __WARN_printf(TAINT_WARN, NULL)
^
include/asm-generic/bug.h:87:38: note: expanded from macro '__WARN_printf'
#define __WARN_printf(taint, arg...) do { \
^
net/caif/cfutill.c:85:2: note: Loop condition is false. Exiting loop
caif_assert(layr->dn != NULL);
^
include/net/caif/caif_layer.h:27:33: note: expanded from macro 'caif_assert'
#define caif_assert(assert) \
^
net/caif/cfutill.c:86:14: note: Access to field 'transmit' results in a dereference of a null pointer (loaded from field 'dn')
caif_assert(layr->dn->transmit != NULL);
^
include/net/caif/caif_layer.h:29:8: note: expanded from macro 'caif_assert'
if (!(assert)) { \
^~~~~~
1 warning generated.
>> drivers/iio/imu/adis16480.c:169:8: warning: Excessive padding in 'struct adis16480' (40 padding bytes, where 8 is optimal). Optimal fields order: adis, data, chip_info, ext_clk, clk_mode, clk_freq, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding]
struct adis16480 {
~~~~~~~^~~~~~~~~~~
drivers/iio/imu/adis16480.c:169:8: note: Excessive padding in 'struct adis16480' (40 padding bytes, where 8 is optimal). Optimal fields order: adis, data, chip_info, ext_clk, clk_mode, clk_freq, consider reordering the fields or adding explicit padding members
struct adis16480 {
~~~~~~~^~~~~~~~~~~
1 warning generated.
drivers/iio/imu/fxos8700_core.c:167:8: warning: Excessive padding in 'struct fxos8700_data' (50 padding bytes, where 18 is optimal). Optimal fields order: buf, regmap, trig, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding]
struct fxos8700_data {
~~~~~~~^~~~~~~~~~~~~~~
drivers/iio/imu/fxos8700_core.c:167:8: note: Excessive padding in 'struct fxos8700_data' (50 padding bytes, where 18 is optimal). Optimal fields order: buf, regmap, trig, consider reordering the fields or adding explicit padding members
struct fxos8700_data {
~~~~~~~^~~~~~~~~~~~~~~
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.
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.
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.
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.
net/caif/cfsrvl.c:99:14: warning: Access to field 'dn' results in a dereference of a null pointer (loaded from variable 'layr') [clang-analyzer-core.NullDereference]
caif_assert(layr->dn != NULL);
^
include/net/caif/caif_layer.h:29:8: note: expanded from macro 'caif_assert'
if (!(assert)) { \
^~~~~~
net/caif/cfsrvl.c:96:27: note: Left side of '&&' is false
struct cfsrvl *service = container_obj(layr);
^
net/caif/cfsrvl.c:25:29: note: expanded from macro 'container_obj'
#define container_obj(layr) container_of(layr, struct cfsrvl, layer)
^
include/linux/kernel.h:704:61: note: expanded from macro 'container_of'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
^
net/caif/cfsrvl.c:96:27: note: Taking false branch
struct cfsrvl *service = container_obj(layr);
^
net/caif/cfsrvl.c:25:29: note: expanded from macro 'container_obj'
#define container_obj(layr) container_of(layr, struct cfsrvl, layer)
^
include/linux/kernel.h:704:2: note: expanded from macro 'container_of'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
^
include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
include/linux/compiler_types.h:328:2: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
include/linux/compiler_types.h:316:2: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^
include/linux/compiler_types.h:308:3: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^
net/caif/cfsrvl.c:96:27: note: Loop condition is false. Exiting loop
struct cfsrvl *service = container_obj(layr);
^
net/caif/cfsrvl.c:25:29: note: expanded from macro 'container_obj'
#define container_obj(layr) container_of(layr, struct cfsrvl, layer)
^
include/linux/kernel.h:704:2: note: expanded from macro 'container_of'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
^
include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
include/linux/compiler_types.h:328:2: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
include/linux/compiler_types.h:316:2: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^
include/linux/compiler_types.h:306:2: note: expanded from macro '__compiletime_assert'
do { \
^
net/caif/cfsrvl.c:98:14: note: Assuming 'layr' is equal to null
caif_assert(layr != NULL);
^
include/net/caif/caif_layer.h:29:8: note: expanded from macro 'caif_assert'
if (!(assert)) { \
^~~~~~
vim +169 drivers/iio/imu/adis16480.c
326e2357553d39 Stefan Popa 2019-03-11 168
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 @169 struct adis16480 {
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 170 const struct adis16480_chip_info *chip_info;
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 171
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 172 struct adis adis;
326e2357553d39 Stefan Popa 2019-03-11 173 struct clk *ext_clk;
326e2357553d39 Stefan Popa 2019-03-11 174 enum adis16480_clock_mode clk_mode;
326e2357553d39 Stefan Popa 2019-03-11 175 unsigned int clk_freq;
941f130881fa90 Nuno Sa 2021-04-22 176 /* Alignment needed for the timestamp */
941f130881fa90 Nuno Sa 2021-04-22 177 __be16 data[ADIS16495_BURST_MAX_DATA] __aligned(8);
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 178 };
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 179
:::::: The code at line 169 was first introduced by commit
:::::: 2f3abe6cbb6c963ac790b40936b6761c9f0497b4 iio:imu: Add support for the ADIS16480 and similar IMUs
:::::: TO: Lars-Peter Clausen <lars@metafoo.de>
:::::: CC: Jonathan Cameron <jic23@kernel.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 2+ messages in thread
* drivers/iio/imu/adis16480.c:169:8: warning: Excessive padding in 'struct adis16480' (40 padding bytes, where 8 is optimal). Optimal fields order: adis, data, chip_info, ext_clk, clk_mode, clk_freq, consider reordering the fields or adding explicit padding...
@ 2022-07-19 22:20 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2022-07-19 22:20 UTC (permalink / raw)
To: Nuno Sa
Cc: llvm, kbuild-all, linux-kernel, Jonathan Cameron, Lars-Peter Clausen
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: ca85855bdcae8f84f1512e88b4c75009ea17ea2f
commit: 941f130881fa9073a32944e69c26cdc15a554d96 iio: adis16480: support burst read function
date: 1 year, 2 months ago
config: arm-randconfig-c002-20220717 (https://download.01.org/0day-ci/archive/20220720/202207200602.aZBLNvbn-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 45067f8fbf61284839c739807c2da2e2505661eb)
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=941f130881fa9073a32944e69c26cdc15a554d96
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 941f130881fa9073a32944e69c26cdc15a554d96
# save the config file
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm clang-analyzer
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
clang-analyzer warnings: (new ones prefixed by >>)
4 warnings generated.
Suppressed 4 warnings (3 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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.
net/nfc/digital_dep.c:1199:3: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = 0;
^ ~
net/nfc/digital_dep.c:1199:3: note: Value stored to 'rc' is never read
rc = 0;
^ ~
net/nfc/digital_dep.c:1407:3: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = PTR_ERR(resp);
^ ~~~~~~~~~~~~~
net/nfc/digital_dep.c:1407:3: note: Value stored to 'rc' is never read
rc = PTR_ERR(resp);
^ ~~~~~~~~~~~~~
net/nfc/digital_dep.c:1429:3: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = -EIO;
^ ~~~~
net/nfc/digital_dep.c:1429:3: note: Value stored to 'rc' is never read
rc = -EIO;
^ ~~~~
net/nfc/digital_dep.c:1454:3: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = -EINVAL;
^ ~~~~~~~
net/nfc/digital_dep.c:1454:3: note: Value stored to 'rc' is never read
rc = -EINVAL;
^ ~~~~~~~
net/nfc/digital_dep.c:1461:2: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = digital_tg_send_psl_res(ddev, psl_req->did, rf_tech);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/nfc/digital_dep.c:1461:2: note: Value stored to 'rc' is never read
rc = digital_tg_send_psl_res(ddev, psl_req->did, rf_tech);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.
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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
drivers/iio/imu/adis16400.c:179:8: warning: Excessive padding in 'struct adis16400_state' (48 padding bytes, where 16 is optimal). Optimal fields order: adis, variant, filt_int, avail_scan_mask, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding]
struct adis16400_state {
~~~~~~~^~~~~~~~~~~~~~~~~
drivers/iio/imu/adis16400.c:179:8: note: Excessive padding in 'struct adis16400_state' (48 padding bytes, where 16 is optimal). Optimal fields order: adis, variant, filt_int, avail_scan_mask, consider reordering the fields or adding explicit padding members
struct adis16400_state {
~~~~~~~^~~~~~~~~~~~~~~~~
1 warning generated.
drivers/iio/imu/adis16475.c:100:8: warning: Excessive padding in 'struct adis16475' (41 padding bytes, where 9 is optimal). Optimal fields order: adis, data, info, clk_freq, lsb_flag, sync_mode, burst32, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding]
struct adis16475 {
~~~~~~~^~~~~~~~~~~
drivers/iio/imu/adis16475.c:100:8: note: Excessive padding in 'struct adis16475' (41 padding bytes, where 9 is optimal). Optimal fields order: adis, data, info, clk_freq, lsb_flag, sync_mode, burst32, consider reordering the fields or adding explicit padding members
struct adis16475 {
~~~~~~~^~~~~~~~~~~
1 warning generated.
>> drivers/iio/imu/adis16480.c:169:8: warning: Excessive padding in 'struct adis16480' (40 padding bytes, where 8 is optimal). Optimal fields order: adis, data, chip_info, ext_clk, clk_mode, clk_freq, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding]
struct adis16480 {
~~~~~~~^~~~~~~~~~~
drivers/iio/imu/adis16480.c:169:8: note: Excessive padding in 'struct adis16480' (40 padding bytes, where 8 is optimal). Optimal fields order: adis, data, chip_info, ext_clk, clk_mode, clk_freq, consider reordering the fields or adding explicit padding members
struct adis16480 {
~~~~~~~^~~~~~~~~~~
3 warnings generated.
Suppressed 3 warnings (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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.
drivers/net/usb/ax88179_178a.c:378:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/usb/ax88179_178a.c:378:2: note: Value stored to 'ret' is never read
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/usb/ax88179_178a.c:382:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/usb/ax88179_178a.c:382:2: note: Value stored to 'ret' is never read
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.
3 warnings generated.
Suppressed 3 warnings (2 in non-user code, 1 with check filters).
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.
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.
Suppressed 3 warnings (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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.
3 warnings generated.
Suppressed 3 warnings (2 in non-user code, 1 with check filters).
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.
net/netfilter/xt_policy.c:139:3: warning: Value stored to 'errmsg' is never read [clang-analyzer-deadcode.DeadStores]
errmsg = "output policy not valid in PREROUTING and INPUT";
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/netfilter/xt_policy.c:139:3: note: Value stored to 'errmsg' is never read
errmsg = "output policy not valid in PREROUTING and INPUT";
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/netfilter/xt_policy.c:144:3: warning: Value stored to 'errmsg' is never read [clang-analyzer-deadcode.DeadStores]
errmsg = "input policy not valid in POSTROUTING and OUTPUT";
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/netfilter/xt_policy.c:144:3: note: Value stored to 'errmsg' is never read
errmsg = "input policy not valid in POSTROUTING and OUTPUT";
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/netfilter/xt_policy.c:148:3: warning: Value stored to 'errmsg' is never read [clang-analyzer-deadcode.DeadStores]
errmsg = "too many policy elements";
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~
net/netfilter/xt_policy.c:148:3: note: Value stored to 'errmsg' is never read
errmsg = "too many policy elements";
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~
Suppressed 3 warnings (2 in non-user code, 1 with check filters).
--
drivers/usb/core/file.c:160:6: note: Value stored to 'minor_base' during its initialization is never read
int minor_base = class_driver->minor_base;
^~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
drivers/input/touchscreen/cyttsp4_core.c:620:26: warning: Value stored to 'si' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
struct cyttsp4_sysinfo *si = &cd->sysinfo;
^~ ~~~~~~~~~~~~
drivers/input/touchscreen/cyttsp4_core.c:620:26: note: Value stored to 'si' during its initialization is never read
struct cyttsp4_sysinfo *si = &cd->sysinfo;
^~ ~~~~~~~~~~~~
drivers/input/touchscreen/cyttsp4_core.c:806:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
struct device *dev = &md->input->dev;
^~~ ~~~~~~~~~~~~~~~
drivers/input/touchscreen/cyttsp4_core.c:806:17: note: Value stored to 'dev' during its initialization is never read
struct device *dev = &md->input->dev;
^~~ ~~~~~~~~~~~~~~~
drivers/input/touchscreen/cyttsp4_core.c:990:2: warning: Value stored to 'hst_mode' is never read [clang-analyzer-deadcode.DeadStores]
hst_mode = si->xy_mode[CY_REG_BASE];
^ ~~~~~~~~~~~~~~~~~~~~~~~~
drivers/input/touchscreen/cyttsp4_core.c:990:2: note: Value stored to 'hst_mode' is never read
hst_mode = si->xy_mode[CY_REG_BASE];
^ ~~~~~~~~~~~~~~~~~~~~~~~~
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.
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.
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.
Suppressed 3 warnings (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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.
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 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
Suppressed 1 warnings (1 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.
1 warning generated.
drivers/iio/imu/adis16400.c:179:8: warning: Excessive padding in 'struct adis16400_state' (48 padding bytes, where 16 is optimal). Optimal fields order: adis, variant, filt_int, avail_scan_mask, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding]
struct adis16400_state {
~~~~~~~^~~~~~~~~~~~~~~~~
drivers/iio/imu/adis16400.c:179:8: note: Excessive padding in 'struct adis16400_state' (48 padding bytes, where 16 is optimal). Optimal fields order: adis, variant, filt_int, avail_scan_mask, consider reordering the fields or adding explicit padding members
struct adis16400_state {
~~~~~~~^~~~~~~~~~~~~~~~~
1 warning generated.
drivers/iio/imu/adis16475.c:100:8: warning: Excessive padding in 'struct adis16475' (41 padding bytes, where 9 is optimal). Optimal fields order: adis, data, info, clk_freq, lsb_flag, sync_mode, burst32, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding]
struct adis16475 {
~~~~~~~^~~~~~~~~~~
drivers/iio/imu/adis16475.c:100:8: note: Excessive padding in 'struct adis16475' (41 padding bytes, where 9 is optimal). Optimal fields order: adis, data, info, clk_freq, lsb_flag, sync_mode, burst32, consider reordering the fields or adding explicit padding members
struct adis16475 {
~~~~~~~^~~~~~~~~~~
1 warning generated.
>> drivers/iio/imu/adis16480.c:169:8: warning: Excessive padding in 'struct adis16480' (40 padding bytes, where 8 is optimal). Optimal fields order: adis, data, chip_info, ext_clk, clk_mode, clk_freq, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding]
struct adis16480 {
~~~~~~~^~~~~~~~~~~
drivers/iio/imu/adis16480.c:169:8: note: Excessive padding in 'struct adis16480' (40 padding bytes, where 8 is optimal). Optimal fields order: adis, data, chip_info, ext_clk, clk_mode, clk_freq, consider reordering the fields or adding explicit padding members
struct adis16480 {
~~~~~~~^~~~~~~~~~~
3 warnings generated.
Suppressed 3 warnings (2 in non-user code, 1 with check filters).
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.
net/wireless/lib80211_crypt_tkip.c:335:25: warning: Value stored to 'hdr' during its initialization is never read [clang-analyzer-deadcode.DeadStores]
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
^~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/wireless/lib80211_crypt_tkip.c:335:25: note: Value stored to 'hdr' during its initialization is never read
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
^~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Suppressed 4 warnings (3 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (2 in non-user code, 1 with check filters).
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 (3 in non-user code, 1 with check filters).
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 (3 in non-user code, 1 with check filters).
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/wireless/ti/wlcore/debugfs.c:949:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]
ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ti/wlcore/debugfs.c:949:3: note: Value stored to 'ret' is never read
ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ti/wlcore/debugfs.c:1266:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]
ret = wl12xx_cmd_config_fwlog(wl);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ti/wlcore/debugfs.c:1266:2: note: Value stored to 'ret' is never read
ret = wl12xx_cmd_config_fwlog(wl);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
Suppressed 4 warnings (3 in non-user code, 1 with check filters).
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 (3 in non-user code, 1 with check filters).
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 (3 in non-user code, 1 with check filters).
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.
net/nfc/digital_dep.c:1199:3: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = 0;
^ ~
net/nfc/digital_dep.c:1199:3: note: Value stored to 'rc' is never read
rc = 0;
^ ~
net/nfc/digital_dep.c:1407:3: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = PTR_ERR(resp);
^ ~~~~~~~~~~~~~
net/nfc/digital_dep.c:1407:3: note: Value stored to 'rc' is never read
rc = PTR_ERR(resp);
^ ~~~~~~~~~~~~~
net/nfc/digital_dep.c:1429:3: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = -EIO;
^ ~~~~
net/nfc/digital_dep.c:1429:3: note: Value stored to 'rc' is never read
rc = -EIO;
^ ~~~~
net/nfc/digital_dep.c:1454:3: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = -EINVAL;
^ ~~~~~~~
net/nfc/digital_dep.c:1454:3: note: Value stored to 'rc' is never read
rc = -EINVAL;
^ ~~~~~~~
net/nfc/digital_dep.c:1461:2: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]
rc = digital_tg_send_psl_res(ddev, psl_req->did, rf_tech);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/nfc/digital_dep.c:1461:2: note: Value stored to 'rc' is never read
rc = digital_tg_send_psl_res(ddev, psl_req->did, rf_tech);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 warnings generated.
vim +169 drivers/iio/imu/adis16480.c
326e2357553d39 Stefan Popa 2019-03-11 168
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 @169 struct adis16480 {
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 170 const struct adis16480_chip_info *chip_info;
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 171
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 172 struct adis adis;
326e2357553d39 Stefan Popa 2019-03-11 173 struct clk *ext_clk;
326e2357553d39 Stefan Popa 2019-03-11 174 enum adis16480_clock_mode clk_mode;
326e2357553d39 Stefan Popa 2019-03-11 175 unsigned int clk_freq;
941f130881fa90 Nuno Sa 2021-04-22 176 /* Alignment needed for the timestamp */
941f130881fa90 Nuno Sa 2021-04-22 177 __be16 data[ADIS16495_BURST_MAX_DATA] __aligned(8);
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 178 };
2f3abe6cbb6c96 Lars-Peter Clausen 2012-11-20 179
:::::: The code at line 169 was first introduced by commit
:::::: 2f3abe6cbb6c963ac790b40936b6761c9f0497b4 iio:imu: Add support for the ADIS16480 and similar IMUs
:::::: TO: Lars-Peter Clausen <lars@metafoo.de>
:::::: CC: Jonathan Cameron <jic23@kernel.org>
--
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https://01.org/lkp
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2022-07-24 14:18 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
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2022-07-24 14:17 drivers/iio/imu/adis16480.c:169:8: warning: Excessive padding in 'struct adis16480' (40 padding bytes, where 8 is optimal). Optimal fields order: adis, data, chip_info, ext_clk, clk_mode, clk_freq, consider reordering the fields or adding explicit padding kernel test robot
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2022-07-19 22:20 kernel test robot
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