From: kernel test robot <lkp@intel.com>
To: Nuno Sa <nuno.sa@analog.com>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
linux-kernel@vger.kernel.org,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Lars-Peter Clausen <lars@metafoo.de>
Subject: 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...
Date: Wed, 20 Jul 2022 06:20:32 +0800 [thread overview]
Message-ID: <202207200602.aZBLNvbn-lkp@intel.com> (raw)
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>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
next reply other threads:[~2022-07-19 22:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-19 22:20 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
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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